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Posted to commits@mynewt.apache.org by ut...@apache.org on 2018/10/12 16:07:56 UTC

[mynewt-newt] branch master updated (757fadf -> 26611ab)

This is an automated email from the ASF dual-hosted git repository.

utzig pushed a change to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-newt.git.


    from 757fadf  Merge pull request #216 from ccollins476ad/target-cmds
     new 1750b5f  Add support for encrypted images
     new d7f1c69  Add vendored go-aes-key-wrap
     new 06bd71e  Allow encrypted images using aes-128 keywrap
     new 26611ab  Update go dep (with auto-removed files)

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 .rat-excludes                                      |   3 +
 Gopkg.lock                                         |  72 ++-
 newt/cli/image_cmds.go                             |   7 +
 newt/image/image.go                                | 124 +++-
 .../github.com/NickBall/go-aes-key-wrap/.gitignore |  14 +
 .../NickBall/go-aes-key-wrap/.travis.yml           |   7 +
 .../go-aes-key-wrap}/LICENSE                       |   6 +-
 .../github.com/NickBall/go-aes-key-wrap/README.md  |   4 +
 .../github.com/NickBall/go-aes-key-wrap/keywrap.go | 111 ++++
 .../spf13/cobra/cobra/cmd/license_agpl.go          | 683 --------------------
 .../spf13/cobra/cobra/cmd/license_apache_2.go      | 238 -------
 .../spf13/cobra/cobra/cmd/license_bsd_clause_2.go  |  71 --
 .../spf13/cobra/cobra/cmd/license_bsd_clause_3.go  |  78 ---
 .../spf13/cobra/cobra/cmd/license_gpl_2.go         | 376 -----------
 .../spf13/cobra/cobra/cmd/license_gpl_3.go         | 711 ---------------------
 .../spf13/cobra/cobra/cmd/license_lgpl.go          | 186 ------
 .../spf13/cobra/cobra/cmd/license_mit.go           |  63 --
 .../github.com/spf13/cobra/cobra/cmd/licenses.go   | 118 ----
 18 files changed, 334 insertions(+), 2538 deletions(-)
 create mode 100644 vendor/github.com/NickBall/go-aes-key-wrap/.gitignore
 create mode 100644 vendor/github.com/NickBall/go-aes-key-wrap/.travis.yml
 copy vendor/github.com/{spf13/jwalterweatherman => NickBall/go-aes-key-wrap}/LICENSE (94%)
 create mode 100644 vendor/github.com/NickBall/go-aes-key-wrap/README.md
 create mode 100644 vendor/github.com/NickBall/go-aes-key-wrap/keywrap.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_2.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_3.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_2.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go
 delete mode 100644 vendor/github.com/spf13/cobra/cobra/cmd/licenses.go


[mynewt-newt] 03/04: Allow encrypted images using aes-128 keywrap

Posted by ut...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-newt.git

commit 06bd71e7776b7e3d8e58ccaf21e0ab47eb8fa203
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Tue Sep 11 20:27:27 2018 -0300

    Allow encrypted images using aes-128 keywrap
    
    This adds an extra method of encrypted image creation, using
    AES-128-KEK. This requires a recent version of mbedtls with nist_kw
    support and decreases the flash usage by 8KB from RSA-OAEP. The key file
    must be provided in base64 format and it's decoded content should be a
    16 byte random key.
    
    To generate a key:
    
    > dd if=/dev/urandom of=/dev/stdout bs=1 count=16 | base64 > aes-128-kek.b64
---
 newt/image/image.go | 78 ++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 54 insertions(+), 24 deletions(-)

diff --git a/newt/image/image.go b/newt/image/image.go
index 80546e5..bbc6b5a 100644
--- a/newt/image/image.go
+++ b/newt/image/image.go
@@ -30,6 +30,7 @@ import (
 	"crypto/sha256"
 	"crypto/x509"
 	"encoding/asn1"
+	"encoding/base64"
 	"encoding/binary"
 	"encoding/hex"
 	"encoding/pem"
@@ -42,6 +43,7 @@ import (
 	"strconv"
 	"strings"
 
+	keywrap "github.com/NickBall/go-aes-key-wrap"
 	log "github.com/Sirupsen/logrus"
 
 	"mynewt.apache.org/newt/newt/pkg"
@@ -155,7 +157,8 @@ const (
 	IMAGE_TLV_RSA2048  = 0x20
 	IMAGE_TLV_ECDSA224 = 0x21
 	IMAGE_TLV_ECDSA256 = 0x22
-	IMAGE_TLV_ENCKEY   = 0x30
+	IMAGE_TLV_ENC_RSA  = 0x30
+	IMAGE_TLV_ENC_KEK  = 0x31
 )
 
 /*
@@ -869,39 +872,59 @@ func (image *Image) generateV2(loader *Image) error {
 
 	plainSecret := make([]byte, 16)
 	var cipherSecret []byte
+	var _type uint8
 	if PubKeyFile != "" {
+		_, err = rand.Read(plainSecret)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Random generation error: %s\n", err))
+		}
+
 		keyBytes, err := ioutil.ReadFile(PubKeyFile)
 		if err != nil {
 			return util.NewNewtError(fmt.Sprintf("Error reading pubkey file: %s", err))
 		}
 
+		// Try reading as PEM (asymetric key), if it fails, assume this is a
+		// base64 encoded symetric key
 		b, _ := pem.Decode(keyBytes)
-		if b == nil || (b.Type != "PUBLIC KEY" && b.Type != "RSA PUBLIC KEY") {
-			return util.NewNewtError(fmt.Sprintf("Error decoding pubkey file: %s", err))
-		}
+		if b == nil {
+			kek, err := base64.StdEncoding.DecodeString(string(keyBytes))
+			if err != nil {
+				return util.NewNewtError(fmt.Sprintf("Error decoding kek: %s", err))
+			} else if len(kek) != 16 {
+				return util.NewNewtError(fmt.Sprintf("Unexpected key size: %d != 16", len(kek)))
+			}
 
-		pub, err := x509.ParsePKIXPublicKey(b.Bytes)
-		if err != nil {
-			return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
-		}
+			cipher, err := aes.NewCipher(kek)
+			if err != nil {
+				return util.NewNewtError(fmt.Sprintf("Error creating keywrap cipher: %s", err))
+			}
 
-		var pubk *rsa.PublicKey
-		switch pub.(type) {
-		case *rsa.PublicKey:
-			pubk = pub.(*rsa.PublicKey)
-		default:
-			return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
-		}
+			cipherSecret, err = keywrap.Wrap(cipher, plainSecret)
+			if err != nil {
+				return util.NewNewtError(fmt.Sprintf("Error key-wrapping: %s", err))
+			}
+		} else if b.Type != "PUBLIC KEY" && b.Type != "RSA PUBLIC KEY" {
+			return util.NewNewtError("Invalid PEM file")
+		} else {
+			pub, err := x509.ParsePKIXPublicKey(b.Bytes)
+			if err != nil {
+				return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
+			}
 
-		_, err = rand.Read(plainSecret)
-		if err != nil {
-			return util.NewNewtError(fmt.Sprintf("Random generation error: %s\n", err))
-		}
+			var pubk *rsa.PublicKey
+			switch pub.(type) {
+			case *rsa.PublicKey:
+				pubk = pub.(*rsa.PublicKey)
+			default:
+				return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
+			}
 
-		rng := rand.Reader
-		cipherSecret, err = rsa.EncryptOAEP(sha256.New(), rng, pubk, plainSecret, nil)
-		if err != nil {
-			return util.NewNewtError(fmt.Sprintf("Error from encryption: %s\n", err))
+			rng := rand.Reader
+			cipherSecret, err = rsa.EncryptOAEP(sha256.New(), rng, pubk, plainSecret, nil)
+			if err != nil {
+				return util.NewNewtError(fmt.Sprintf("Error from encryption: %s\n", err))
+			}
 		}
 	}
 
@@ -1187,8 +1210,15 @@ func (image *Image) generateV2(loader *Image) error {
 	}
 
 	if cipherSecret != nil {
+		if len(cipherSecret) == 256 {
+			_type = IMAGE_TLV_ENC_RSA
+		} else if len(cipherSecret) == 24 {
+			_type = IMAGE_TLV_ENC_KEK
+		} else {
+			return util.NewNewtError(fmt.Sprintf("Invalid enc TLV size "))
+		}
 		tlv := &ImageTrailerTlv{
-			Type: IMAGE_TLV_ENCKEY,
+			Type: _type,
 			Pad:  0,
 			Len:  uint16(len(cipherSecret)),
 		}


[mynewt-newt] 04/04: Update go dep (with auto-removed files)

Posted by ut...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-newt.git

commit 26611ab2560dca3c0cfa309bcecf46b146adc7a8
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Tue Sep 11 20:31:42 2018 -0300

    Update go dep (with auto-removed files)
---
 Gopkg.lock                                         |  72 ++-
 .../spf13/cobra/cobra/cmd/license_agpl.go          | 683 --------------------
 .../spf13/cobra/cobra/cmd/license_apache_2.go      | 238 -------
 .../spf13/cobra/cobra/cmd/license_bsd_clause_2.go  |  71 --
 .../spf13/cobra/cobra/cmd/license_bsd_clause_3.go  |  78 ---
 .../spf13/cobra/cobra/cmd/license_gpl_2.go         | 376 -----------
 .../spf13/cobra/cobra/cmd/license_gpl_3.go         | 711 ---------------------
 .../spf13/cobra/cobra/cmd/license_lgpl.go          | 186 ------
 .../spf13/cobra/cobra/cmd/license_mit.go           |  63 --
 .../github.com/spf13/cobra/cobra/cmd/licenses.go   | 118 ----
 10 files changed, 67 insertions(+), 2529 deletions(-)

diff --git a/Gopkg.lock b/Gopkg.lock
index 3d72fc5..220b1d9 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,121 +2,164 @@
 
 
 [[projects]]
+  branch = "master"
+  digest = "1:f146b65657344afb19accd78b62d3465056192a2aa2cbda59d364c08c37f5ff2"
+  name = "github.com/NickBall/go-aes-key-wrap"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "1c3aa3e4dfc5b00bec9983bd1de6a71b3d52cd6d"
+
+[[projects]]
+  digest = "1:9e9193aa51197513b3abcb108970d831fbcf40ef96aa845c4f03276e1fa316d2"
   name = "github.com/Sirupsen/logrus"
   packages = ["."]
+  pruneopts = "UT"
   revision = "c155da19408a8799da419ed3eeb0cb5db0ad5dbc"
   version = "v1.0.5"
 
 [[projects]]
   branch = "master"
+  digest = "1:1237f2e0fe3256bbce813cc1bafddaf26b85bddbd2f8c08c30eb845140198aee"
   name = "github.com/armon/consul-api"
   packages = ["."]
+  pruneopts = "UT"
   revision = "eb2c6b5be1b66bab83016e0b05f01b8d5496ffbd"
 
 [[projects]]
+  digest = "1:ddce1b6fa958cb002f3a5c09da9d762b4415d331f7bada1346f7843cfa66064b"
   name = "github.com/coreos/etcd"
   packages = [
     "client",
     "pkg/pathutil",
     "pkg/srv",
     "pkg/types",
-    "version"
+    "version",
   ]
+  pruneopts = "UT"
   revision = "33245c6b5b49130ca99280408fadfab01aac0e48"
   version = "v3.3.8"
 
 [[projects]]
+  digest = "1:0ef770954bca104ee99b3b6b7f9b240605ac03517d9f98cbc1893daa03f3c038"
   name = "github.com/coreos/go-semver"
   packages = ["semver"]
+  pruneopts = "UT"
   revision = "8ab6407b697782a06568d4b7f1db25550ec2e4c6"
   version = "v0.2.0"
 
 [[projects]]
+  digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
+  pruneopts = "UT"
   revision = "346938d642f2ec3594ed81d874461961cd0faa76"
   version = "v1.1.0"
 
 [[projects]]
+  digest = "1:870d441fe217b8e689d7949fef6e43efbc787e50f200cb1e70dbca9204a1d6be"
   name = "github.com/inconshreveable/mousetrap"
   packages = ["."]
+  pruneopts = "UT"
   revision = "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
   version = "v1.0"
 
 [[projects]]
+  digest = "1:ca955a9cd5b50b0f43d2cc3aeb35c951473eeca41b34eb67507f1dbcc0542394"
   name = "github.com/kr/pretty"
   packages = ["."]
+  pruneopts = "UT"
   revision = "73f6ac0b30a98e433b289500d779f50c1a6f0712"
   version = "v0.1.0"
 
 [[projects]]
+  digest = "1:15b5cc79aad436d47019f814fde81a10221c740dc8ddf769221a65097fb6c2e9"
   name = "github.com/kr/text"
   packages = ["."]
+  pruneopts = "UT"
   revision = "e2ffdb16a802fe2bb95e2e35ff34f0e53aeef34f"
   version = "v0.1.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:e730597b38a4d56e2361e0b6236cb800e52c73cace2ff91396f4ff35792ddfa7"
   name = "github.com/mitchellh/mapstructure"
   packages = ["."]
+  pruneopts = "UT"
   revision = "bb74f1db0675b241733089d5a1faa5dd8b0ef57b"
 
 [[projects]]
+  digest = "1:0028cb19b2e4c3112225cd871870f2d9cf49b9b4276531f03438a88e94be86fe"
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
+  pruneopts = "UT"
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
 [[projects]]
+  digest = "1:516e71bed754268937f57d4ecb190e01958452336fa73dbac880894164e91c1f"
   name = "github.com/spf13/cast"
   packages = ["."]
+  pruneopts = "UT"
   revision = "8965335b8c7107321228e3e3702cab9832751bac"
   version = "v1.2.0"
 
 [[projects]]
+  digest = "1:645cabccbb4fa8aab25a956cbcbdf6a6845ca736b2c64e197ca7cbb9d210b939"
   name = "github.com/spf13/cobra"
   packages = ["."]
+  pruneopts = "UT"
   revision = "ef82de70bb3f60c65fb8eebacbb2d122ef517385"
   version = "v0.0.3"
 
 [[projects]]
   branch = "master"
+  digest = "1:080e5f630945ad754f4b920e60b4d3095ba0237ebf88dc462eb28002932e3805"
   name = "github.com/spf13/jwalterweatherman"
   packages = ["."]
+  pruneopts = "UT"
   revision = "7c0cea34c8ece3fbeb2b27ab9b59511d360fb394"
 
 [[projects]]
+  digest = "1:9424f440bba8f7508b69414634aef3b2b3a877e522d8a4624692412805407bb7"
   name = "github.com/spf13/pflag"
   packages = ["."]
+  pruneopts = "UT"
   revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
   version = "v1.0.1"
 
 [[projects]]
+  digest = "1:18752d0b95816a1b777505a97f71c7467a8445b8ffb55631a7bf779f6ba4fa83"
   name = "github.com/stretchr/testify"
   packages = ["assert"]
+  pruneopts = "UT"
   revision = "f35b8ab0b5a2cef36673838d662e249dd9c94686"
   version = "v1.2.2"
 
 [[projects]]
+  digest = "1:03aa6e485e528acb119fb32901cf99582c380225fc7d5a02758e08b180cb56c3"
   name = "github.com/ugorji/go"
   packages = ["codec"]
+  pruneopts = "UT"
   revision = "b4c50a2b199d93b13dc15e78929cfb23bfdf21ab"
   version = "v1.1.1"
 
 [[projects]]
   branch = "master"
+  digest = "1:b2faf2256a00b05784390fbd8ea4b22519ea62daf751fef4ab4ce583c66abf1b"
   name = "github.com/xordataexchange/crypt"
   packages = [
     "backend",
     "backend/consul",
     "backend/etcd",
     "config",
-    "encoding/secconf"
+    "encoding/secconf",
   ]
+  pruneopts = "UT"
   revision = "b2862e3d0a775f18c7cfe02273500ae307b61218"
 
 [[projects]]
   branch = "master"
+  digest = "1:1099f01f674f100f65fdf5365d3e6037766c7530f2142b45046b62045988dff8"
   name = "golang.org/x/crypto"
   packages = [
     "cast5",
@@ -127,22 +170,27 @@
     "openpgp/packet",
     "openpgp/s2k",
     "pbkdf2",
-    "ssh/terminal"
+    "ssh/terminal",
   ]
+  pruneopts = "UT"
   revision = "a49355c7e3f8fe157a85be2f77e6e269a0f89602"
 
 [[projects]]
   branch = "master"
+  digest = "1:56316ade0990ab33f21769b12ebc69d0b81875615c3a4e23c487e68d499f3e96"
   name = "golang.org/x/sys"
   packages = [
     "unix",
-    "windows"
+    "windows",
   ]
+  pruneopts = "UT"
   revision = "3c6ecd8f22c6f40fbeec94c000a069d7d87c7624"
 
 [[projects]]
+  digest = "1:abeb38ade3f32a92943e5be54f55ed6d6e3b6602761d74b4aab4c9dd45c18abd"
   name = "gopkg.in/fsnotify.v1"
   packages = ["."]
+  pruneopts = "UT"
   revision = "c2828203cd70a50dcccfb2761f8b1f8ceef9a8e9"
   source = "https://github.com/fsnotify/fsnotify.git"
   version = "v1.4.7"
@@ -150,6 +198,20 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "39e73b3e764602883e242e51a9e3a17ebe4f7196716a4da457093e8527c86502"
+  input-imports = [
+    "github.com/NickBall/go-aes-key-wrap",
+    "github.com/Sirupsen/logrus",
+    "github.com/kr/pretty",
+    "github.com/mitchellh/mapstructure",
+    "github.com/spf13/cast",
+    "github.com/spf13/cobra",
+    "github.com/spf13/jwalterweatherman",
+    "github.com/spf13/pflag",
+    "github.com/stretchr/testify/assert",
+    "github.com/xordataexchange/crypt/config",
+    "golang.org/x/crypto/pbkdf2",
+    "golang.org/x/crypto/ssh/terminal",
+    "gopkg.in/fsnotify.v1",
+  ]
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go
deleted file mode 100644
index bc22e97..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go
+++ /dev/null
@@ -1,683 +0,0 @@
-package cmd
-
-func initAgpl() {
-	Licenses["agpl"] = License{
-		Name:            "GNU Affero General Public License",
-		PossibleMatches: []string{"agpl", "affero gpl", "gnu agpl"},
-		Header: `
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU Affero General Public License is a free, copyleft license for
-software and other kinds of works, specifically designed to ensure
-cooperation with the community in the case of network server software.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  Developers that use our General Public Licenses protect your rights
-with two steps: (1) assert copyright on the software, and (2) offer
-you this License which gives you legal permission to copy, distribute
-and/or modify the software.
-
-  A secondary benefit of defending all users' freedom is that
-improvements made in alternate versions of the program, if they
-receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
-software used on network servers, this result may fail to come about.
-The GNU General Public License permits making a modified version and
-letting the public access it on a server without ever releasing its
-source code to the public.
-
-  The GNU Affero General Public License is designed specifically to
-ensure that, in such cases, the modified source code becomes available
-to the community.  It requires the operator of a network server to
-provide the source code of the modified version running there to the
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-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go
deleted file mode 100644
index 38393d5..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go
+++ /dev/null
@@ -1,238 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initApache2() {
-	Licenses["apache"] = License{
-		Name:            "Apache 2.0",
-		PossibleMatches: []string{"apache", "apache20", "apache 2.0", "apache2.0", "apache-2.0"},
-		Header: `
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.`,
-		Text: `
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_2.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_2.go
deleted file mode 100644
index 4a847e0..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_2.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initBsdClause2() {
-	Licenses["freebsd"] = License{
-		Name: "Simplified BSD License",
-		PossibleMatches: []string{"freebsd", "simpbsd", "simple bsd", "2-clause bsd",
-			"2 clause bsd", "simplified bsd license"},
-		Header: `All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.`,
-		Text: `{{ .copyright }}
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_3.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_3.go
deleted file mode 100644
index c7476b3..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_3.go
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initBsdClause3() {
-	Licenses["bsd"] = License{
-		Name:            "NewBSD",
-		PossibleMatches: []string{"bsd", "newbsd", "3 clause bsd", "3-clause bsd"},
-		Header: `All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.`,
-		Text: `{{ .copyright }}
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_2.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_2.go
deleted file mode 100644
index 03e05b3..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_2.go
+++ /dev/null
@@ -1,376 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initGpl2() {
-	Licenses["gpl2"] = License{
-		Name:            "GNU General Public License 2.0",
-		PossibleMatches: []string{"gpl2", "gnu gpl2", "gplv2"},
-		Header: `
-This program is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License
-as published by the Free Software Foundation; either version 2
-of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
-
-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
-
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
-    interactive use in the most ordinary way, to print or display an
-    announcement including an appropriate copyright notice and a
-    notice that there is no warranty (or else, saying that you provide
-    a warranty) and that users may redistribute the program under
-    these conditions, and telling the user how to view a copy of this
-    License.  (Exception: if the Program itself is interactive but
-    does not normally print such an announcement, your work based on
-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
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-  4. You may not copy, modify, sublicense, or distribute the Program
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-This section is intended to make thoroughly clear what is believed to
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-may add an explicit geographical distribution limitation excluding
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-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
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-                            NO WARRANTY
-
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
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-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type 'show c' for details.
-
-The hypothetical commands 'show w' and 'show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than 'show w' and 'show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  'Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go
deleted file mode 100644
index ce07679..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go
+++ /dev/null
@@ -1,711 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initGpl3() {
-	Licenses["gpl3"] = License{
-		Name:            "GNU General Public License 3.0",
-		PossibleMatches: []string{"gpl3", "gplv3", "gpl", "gnu gpl3", "gnu gpl"},
-		Header: `
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
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-
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-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                       TERMS AND CONDITIONS
-
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-if neither you nor any third party retains the ability to install
-modified object code on the User Product (for example, the work has
-been installed in ROM).
-
-  The requirement to provide Installation Information does not include a
-requirement to continue to provide support service, warranty, or updates
-for a work that has been modified or installed by the recipient, or for
-the User Product in which it has been modified or installed.  Access to a
-network may be denied when the modification itself materially and
-adversely affects the operation of the network or violates the rules and
-protocols for communication across the network.
-
-  Corresponding Source conveyed, and Installation Information provided,
-in accord with this section must be in a format that is publicly
-documented (and with an implementation available to the public in
-source code form), and must require no special password or key for
-unpacking, reading or copying.
-
-  7. Additional Terms.
-
-  "Additional permissions" are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions.
-Additional permissions that are applicable to the entire Program shall
-be treated as though they were included in this License, to the extent
-that they are valid under applicable law.  If additional permissions
-apply only to part of the Program, that part may be used separately
-under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-  When you convey a copy of a covered work, you may at your option
-remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
-removal in certain cases when you modify the work.)  You may place
-additional permissions on material, added by you to a covered work,
-for which you have or can give appropriate copyright permission.
-
-  Notwithstanding any other provision of this License, for material you
-add to a covered work, you may (if authorized by the copyright holders of
-that material) supplement the terms of this License with terms:
-
-    a) Disclaiming warranty or limiting liability differently from the
-    terms of sections 15 and 16 of this License; or
-
-    b) Requiring preservation of specified reasonable legal notices or
-    author attributions in that material or in the Appropriate Legal
-    Notices displayed by works containing it; or
-
-    c) Prohibiting misrepresentation of the origin of that material, or
-    requiring that modified versions of such material be marked in
-    reasonable ways as different from the original version; or
-
-    d) Limiting the use for publicity purposes of names of licensors or
-    authors of the material; or
-
-    e) Declining to grant rights under trademark law for use of some
-    trade names, trademarks, or service marks; or
-
-    f) Requiring indemnification of licensors and authors of that
-    material by anyone who conveys the material (or modified versions of
-    it) with contractual assumptions of liability to the recipient, for
-    any liability that these contractual assumptions directly impose on
-    those licensors and authors.
-
-  All other non-permissive additional terms are considered "further
-restrictions" within the meaning of section 10.  If the Program as you
-received it, or any part of it, contains a notice stating that it is
-governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
-a further restriction but permits relicensing or conveying under this
-License, you may add to a covered work material governed by the terms
-of that license document, provided that the further restriction does
-not survive such relicensing or conveying.
-
-  If you add terms to a covered work in accord with this section, you
-must place, in the relevant source files, a statement of the
-additional terms that apply to those files, or a notice indicating
-where to find the applicable terms.
-
-  Additional terms, permissive or non-permissive, may be stated in the
-form of a separately written license, or stated as exceptions;
-the above requirements apply either way.
-
-  8. Termination.
-
-  You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
-modify it is void, and will automatically terminate your rights under
-this License (including any patent licenses granted under the third
-paragraph of section 11).
-
-  However, if you cease all violation of this License, then your
-license from a particular copyright holder is reinstated (a)
-provisionally, unless and until the copyright holder explicitly and
-finally terminates your license, and (b) permanently, if the copyright
-holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-  Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-  Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
-reinstated, you do not qualify to receive new licenses for the same
-material under section 10.
-
-  9. Acceptance Not Required for Having Copies.
-
-  You are not required to accept this License in order to receive or
-run a copy of the Program.  Ancillary propagation of a covered work
-occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
-receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
-for enforcing compliance by third parties with this License.
-
-  An "entity transaction" is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
-work results from an entity transaction, each party to that
-transaction who receives a copy of the work also receives whatever
-licenses to the work the party's predecessor in interest had or could
-give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if
-the predecessor has it or can get it with reasonable efforts.
-
-  You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
-not impose a license fee, royalty, or other charge for exercise of
-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Use with the GNU Affero General Public License.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type 'show c' for details.
-
-The hypothetical commands 'show w' and 'show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go
deleted file mode 100644
index 0f8b96c..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go
+++ /dev/null
@@ -1,186 +0,0 @@
-package cmd
-
-func initLgpl() {
-	Licenses["lgpl"] = License{
-		Name:            "GNU Lesser General Public License",
-		PossibleMatches: []string{"lgpl", "lesser gpl", "gnu lgpl"},
-		Header: `
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                   GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions.
-
-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-  A "Combined Work" is a work produced by combining or linking an
-Application with the Library.  The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-  The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-  The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
-  1. Exception to Section 3 of the GNU GPL.
-
-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
-  2. Conveying Modified Versions.
-
-  If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
-   a) under this License, provided that you make a good faith effort to
-   ensure that, in the event an Application does not supply the
-   function or data, the facility still operates, and performs
-   whatever part of its purpose remains meaningful, or
-
-   b) under the GNU GPL, with none of the additional permissions of
-   this License applicable to that copy.
-
-  3. Object Code Incorporating Material from Library Header Files.
-
-  The object code form of an Application may incorporate material from
-a header file that is part of the Library.  You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
-   a) Give prominent notice with each copy of the object code that the
-   Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the object code with a copy of the GNU GPL and this license
-   document.
-
-  4. Combined Works.
-
-  You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
-engineering for debugging such modifications, if you also do each of
-the following:
-
-   a) Give prominent notice with each copy of the Combined Work that
-   the Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the Combined Work with a copy of the GNU GPL and this license
-   document.
-
-   c) For a Combined Work that displays copyright notices during
-   execution, include the copyright notice for the Library among
-   these notices, as well as a reference directing the user to the
-   copies of the GNU GPL and this license document.
-
-   d) Do one of the following:
-
-       0) Convey the Minimal Corresponding Source under the terms of this
-       License, and the Corresponding Application Code in a form
-       suitable for, and under terms that permit, the user to
-       recombine or relink the Application with a modified version of
-       the Linked Version to produce a modified Combined Work, in the
-       manner specified by section 6 of the GNU GPL for conveying
-       Corresponding Source.
-
-       1) Use a suitable shared library mechanism for linking with the
-       Library.  A suitable mechanism is one that (a) uses at run time
-       a copy of the Library already present on the user's computer
-       system, and (b) will operate properly with a modified version
-       of the Library that is interface-compatible with the Linked
-       Version.
-
-   e) Provide Installation Information, but only if you would otherwise
-   be required to provide such information under section 6 of the
-   GNU GPL, and only to the extent that such information is
-   necessary to install and execute a modified version of the
-   Combined Work produced by recombining or relinking the
-   Application with a modified version of the Linked Version. (If
-   you use option 4d0, the Installation Information must accompany
-   the Minimal Corresponding Source and Corresponding Application
-   Code. If you use option 4d1, you must provide the Installation
-   Information in the manner specified by section 6 of the GNU GPL
-   for conveying Corresponding Source.)
-
-  5. Combined Libraries.
-
-  You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
-   a) Accompany the combined library with a copy of the same work based
-   on the Library, uncombined with any other library facilities,
-   conveyed under the terms of this License.
-
-   b) Give prominent notice with the combined library that part of it
-   is a work based on the Library, and explaining where to find the
-   accompanying uncombined form of the same work.
-
-  6. Revised Versions of the GNU Lesser General Public License.
-
-  The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-  Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
-  If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go b/vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go
deleted file mode 100644
index bd2d0c4..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initMit() {
-	Licenses["mit"] = License{
-		Name:            "MIT License",
-		PossibleMatches: []string{"mit"},
-		Header: `
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.`,
-		Text: `The MIT License (MIT)
-
-{{ .copyright }}
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-`,
-	}
-}
diff --git a/vendor/github.com/spf13/cobra/cobra/cmd/licenses.go b/vendor/github.com/spf13/cobra/cobra/cmd/licenses.go
deleted file mode 100644
index a070134..0000000
--- a/vendor/github.com/spf13/cobra/cobra/cmd/licenses.go
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright © 2015 Steve Francia <sp...@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-import (
-	"strings"
-	"time"
-
-	"github.com/spf13/viper"
-)
-
-// Licenses contains all possible licenses a user can choose from.
-var Licenses = make(map[string]License)
-
-// License represents a software license agreement, containing the Name of
-// the license, its possible matches (on the command line as given to cobra),
-// the header to be used with each file on the file's creating, and the text
-// of the license
-type License struct {
-	Name            string   // The type of license in use
-	PossibleMatches []string // Similar names to guess
-	Text            string   // License text data
-	Header          string   // License header for source files
-}
-
-func init() {
-	// Allows a user to not use a license.
-	Licenses["none"] = License{"None", []string{"none", "false"}, "", ""}
-
-	initApache2()
-	initMit()
-	initBsdClause3()
-	initBsdClause2()
-	initGpl2()
-	initGpl3()
-	initLgpl()
-	initAgpl()
-}
-
-// getLicense returns license specified by user in flag or in config.
-// If user didn't specify the license, it returns Apache License 2.0.
-//
-// TODO: Inspect project for existing license
-func getLicense() License {
-	// If explicitly flagged, use that.
-	if userLicense != "" {
-		return findLicense(userLicense)
-	}
-
-	// If user wants to have custom license, use that.
-	if viper.IsSet("license.header") || viper.IsSet("license.text") {
-		return License{Header: viper.GetString("license.header"),
-			Text: viper.GetString("license.text")}
-	}
-
-	// If user wants to have built-in license, use that.
-	if viper.IsSet("license") {
-		return findLicense(viper.GetString("license"))
-	}
-
-	// If user didn't set any license, use Apache 2.0 by default.
-	return Licenses["apache"]
-}
-
-func copyrightLine() string {
-	author := viper.GetString("author")
-
-	year := viper.GetString("year") // For tests.
-	if year == "" {
-		year = time.Now().Format("2006")
-	}
-
-	return "Copyright © " + year + " " + author
-}
-
-// findLicense looks for License object of built-in licenses.
-// If it didn't find license, then the app will be terminated and
-// error will be printed.
-func findLicense(name string) License {
-	found := matchLicense(name)
-	if found == "" {
-		er("unknown license: " + name)
-	}
-	return Licenses[found]
-}
-
-// matchLicense compares the given a license name
-// to PossibleMatches of all built-in licenses.
-// It returns blank string, if name is blank string or it didn't find
-// then appropriate match to name.
-func matchLicense(name string) string {
-	if name == "" {
-		return ""
-	}
-
-	for key, lic := range Licenses {
-		for _, match := range lic.PossibleMatches {
-			if strings.EqualFold(name, match) {
-				return key
-			}
-		}
-	}
-
-	return ""
-}


[mynewt-newt] 02/04: Add vendored go-aes-key-wrap

Posted by ut...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-newt.git

commit d7f1c69a6817ee5a2670101a183e30298780a9b2
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Tue Sep 11 20:26:55 2018 -0300

    Add vendored go-aes-key-wrap
---
 .rat-excludes                                      |   3 +
 .../github.com/NickBall/go-aes-key-wrap/.gitignore |  14 +++
 .../NickBall/go-aes-key-wrap/.travis.yml           |   7 ++
 vendor/github.com/NickBall/go-aes-key-wrap/LICENSE |  21 ++++
 .../github.com/NickBall/go-aes-key-wrap/README.md  |   4 +
 .../github.com/NickBall/go-aes-key-wrap/keywrap.go | 111 +++++++++++++++++++++
 6 files changed, 160 insertions(+)

diff --git a/.rat-excludes b/.rat-excludes
index e305895..bc81e58 100644
--- a/.rat-excludes
+++ b/.rat-excludes
@@ -71,3 +71,6 @@ ugorji
 
 # go-coap - MIT license.
 go-coap
+
+# go-aes-key-wrap - MIT license.
+go-aes-key-wrap
diff --git a/vendor/github.com/NickBall/go-aes-key-wrap/.gitignore b/vendor/github.com/NickBall/go-aes-key-wrap/.gitignore
new file mode 100644
index 0000000..a1338d6
--- /dev/null
+++ b/vendor/github.com/NickBall/go-aes-key-wrap/.gitignore
@@ -0,0 +1,14 @@
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
diff --git a/vendor/github.com/NickBall/go-aes-key-wrap/.travis.yml b/vendor/github.com/NickBall/go-aes-key-wrap/.travis.yml
new file mode 100644
index 0000000..714bd3d
--- /dev/null
+++ b/vendor/github.com/NickBall/go-aes-key-wrap/.travis.yml
@@ -0,0 +1,7 @@
+language: go
+go:
+  - 1.x
+script:
+  - go test -race -coverprofile=coverage.txt -covermode=atomic
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
diff --git a/vendor/github.com/NickBall/go-aes-key-wrap/LICENSE b/vendor/github.com/NickBall/go-aes-key-wrap/LICENSE
new file mode 100644
index 0000000..1ccb4e1
--- /dev/null
+++ b/vendor/github.com/NickBall/go-aes-key-wrap/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Nick Ball
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/github.com/NickBall/go-aes-key-wrap/README.md b/vendor/github.com/NickBall/go-aes-key-wrap/README.md
new file mode 100644
index 0000000..d29469e
--- /dev/null
+++ b/vendor/github.com/NickBall/go-aes-key-wrap/README.md
@@ -0,0 +1,4 @@
+[![Build Status](https://travis-ci.org/NickBall/go-aes-key-wrap.svg?branch=master)](https://travis-ci.org/NickBall/go-aes-key-wrap) [![Go Report Card](https://goreportcard.com/badge/github.com/nickball/go-aes-key-wrap)](https://goreportcard.com/report/github.com/nickball/go-aes-key-wrap) [![codecov](https://codecov.io/gh/nickball/go-aes-key-wrap/branch/master/graph/badge.svg)](https://codecov.io/gh/nickball/go-aes-key-wrap)
+
+# go-aes-key-wrap
+Golang implementation of the AES Key Wrap algorithm as specified in RFC 3394
diff --git a/vendor/github.com/NickBall/go-aes-key-wrap/keywrap.go b/vendor/github.com/NickBall/go-aes-key-wrap/keywrap.go
new file mode 100644
index 0000000..0b90bd3
--- /dev/null
+++ b/vendor/github.com/NickBall/go-aes-key-wrap/keywrap.go
@@ -0,0 +1,111 @@
+//Package keywrap provides an AES-KW keywrap implementation as defined in RFC-3394
+package keywrap
+
+import (
+	"crypto/cipher"
+	"crypto/subtle"
+	"encoding/binary"
+	"errors"
+)
+
+//defaultIV as specified in RFC-3394
+var defaultIV = []byte{0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6}
+
+//Wrap encrypts the provided key data (cek) with the given AES cipher (and corresponding key), using the AES Key Wrap algorithm (RFC-3394)
+func Wrap(block cipher.Block, cek []byte) ([]byte, error) {
+	if len(cek)%8 != 0 {
+		return nil, errors.New("cek must be in 8-byte blocks")
+	}
+
+	//Initialize variables
+	a := make([]byte, 8)
+	copy(a, defaultIV)
+	n := len(cek) / 8
+
+	//Calculate intermediate
+	r := make([][]byte, n)
+	for i := range r {
+		r[i] = make([]byte, 8)
+		copy(r[i], cek[i*8:])
+	}
+
+	for j := 0; j <= 5; j++ {
+		for i := 1; i <= n; i++ {
+			b := arrConcat(a, r[i-1])
+			block.Encrypt(b, b)
+
+			t := (n * j) + i
+			tBytes := make([]byte, 8)
+			binary.BigEndian.PutUint64(tBytes, uint64(t))
+
+			copy(a, arrXor(b[:len(b)/2], tBytes))
+			copy(r[i-1], b[len(b)/2:])
+		}
+	}
+
+	//Output
+	c := make([]byte, (n+1)*8)
+	copy(c, a)
+	for i := 1; i <= n; i++ {
+		for j := range r[i-1] {
+			c[(i*8)+j] = r[i-1][j]
+		}
+	}
+	return c, nil
+}
+
+//Unwrap decrypts the provided cipher text with the given AES cipher (and corresponding key), using the AES Key Wrap algorithm (RFC-3394).
+//The decrypted cipher text is verified using the default IV and will return an error if validation fails.
+func Unwrap(block cipher.Block, cipherText []byte) ([]byte, error) {
+	//Initialize variables
+	a := make([]byte, 8)
+	n := (len(cipherText) / 8) - 1
+
+	r := make([][]byte, n)
+	for i := range r {
+		r[i] = make([]byte, 8)
+		copy(r[i], cipherText[(i+1)*8:])
+	}
+	copy(a, cipherText[:8])
+
+	//Compute intermediate values
+	for j := 5; j >= 0; j-- {
+		for i := n; i >= 1; i-- {
+			t := (n * j) + i
+			tBytes := make([]byte, 8)
+			binary.BigEndian.PutUint64(tBytes, uint64(t))
+
+			b := arrConcat(arrXor(a, tBytes), r[i-1])
+			block.Decrypt(b, b)
+
+			copy(a, b[:len(b)/2])
+			copy(r[i-1], b[len(b)/2:])
+		}
+	}
+
+	if subtle.ConstantTimeCompare(a, defaultIV) != 1 {
+		return nil, errors.New("integrity check failed - unexpected IV")
+	}
+
+	//Output
+	c := arrConcat(r...)
+	return c, nil
+}
+
+func arrConcat(arrays ...[]byte) []byte {
+	out := make([]byte, len(arrays[0]))
+	copy(out, arrays[0])
+	for _, array := range arrays[1:] {
+		out = append(out, array...)
+	}
+
+	return out
+}
+
+func arrXor(arrL []byte, arrR []byte) []byte {
+	out := make([]byte, len(arrL))
+	for x := range arrL {
+		out[x] = arrL[x] ^ arrR[x]
+	}
+	return out
+}


[mynewt-newt] 01/04: Add support for encrypted images

Posted by ut...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-newt.git

commit 1750b5f043f49156773cef52e6b7ccfccf33a6df
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Tue Aug 21 15:22:42 2018 -0300

    Add support for encrypted images
    
    This adds a new flag to `create-image` command: `-e <rsa-pub-key.pem>`
    to allow generation of encrypted images. This adds a layer of secrecy
    while transporting images to the device and for storing at an external
    flash.
    
    To encrypt, RSA-OAEP was used, mainly because it is well supported by
    libraries. This requires the device to already have the private key
    stored internally. The encryption process method follows these steps:
    
    1) Generate a random AES-128 key
    2) Use this key with AES-128-CTR to encrypt the image
    3) Use RSA-OAEP to encrypt the key
    4) Store this encrypted key in a new TLV (0x30)
    5) A new header flag signals the image to be encrypted.
    
    When doing a swap, the image is decrypted from slot1 -> slot0, and
    re-encrypted when coming back from slot0 -> slot1 based on the header
    flag.
    
    The TLV adds about 256 bytes to the image, and RSA-OAEP in the firmware
    increases some 12KB of flash required, so better key encryption methods
    might be added later, like EICES (using eliptic curves) and AES-KEK
    using a secret key to encrypt the encryption key itself.
---
 newt/cli/image_cmds.go |  7 ++++
 newt/image/image.go    | 94 ++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 95 insertions(+), 6 deletions(-)

diff --git a/newt/cli/image_cmds.go b/newt/cli/image_cmds.go
index 5c4e63d..3063d3e 100644
--- a/newt/cli/image_cmds.go
+++ b/newt/cli/image_cmds.go
@@ -145,6 +145,9 @@ func AddImageCommands(cmd *cobra.Command) {
 
 	createImageHelpText += "Default image format is version 1.\n"
 
+	createImageHelpText += "To encrypt the image, specify -e passing it a public" +
+		"key\n\n"
+
 	createImageHelpEx := "  newt create-image my_target1 1.3.0\n"
 	createImageHelpEx += "  newt create-image my_target1 1.3.0.3\n"
 	createImageHelpEx += "  newt create-image my_target1 1.3.0.3 private.pem\n"
@@ -169,6 +172,8 @@ func AddImageCommands(cmd *cobra.Command) {
 		"1", "1", false, "Use old image header format")
 	createImageCmd.PersistentFlags().BoolVarP(&useV2,
 		"2", "2", false, "Use new image header format")
+	createImageCmd.PersistentFlags().StringVarP(&image.PubKeyFile,
+		"encrypt", "e", "", "Encrypt image using this public key")
 
 	cmd.AddCommand(createImageCmd)
 	AddTabCompleteFn(createImageCmd, targetList)
@@ -203,6 +208,8 @@ func AddImageCommands(cmd *cobra.Command) {
 		"1", "1", false, "Use old image header format")
 	resignImageCmd.PersistentFlags().BoolVarP(&useV2,
 		"2", "2", false, "Use new image header format")
+	resignImageCmd.PersistentFlags().StringVarP(&image.PubKeyFile,
+		"encrypt", "e", "", "Encrypt image using this public key")
 
 	cmd.AddCommand(resignImageCmd)
 }
diff --git a/newt/image/image.go b/newt/image/image.go
index f43d5b9..80546e5 100644
--- a/newt/image/image.go
+++ b/newt/image/image.go
@@ -22,6 +22,8 @@ package image
 import (
 	"bytes"
 	"crypto"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/ecdsa"
 	"crypto/rand"
 	"crypto/rsa"
@@ -53,6 +55,9 @@ var UseRsaPss = false
 // Use old image format
 var UseV1 = false
 
+// Public key file to encrypt image
+var PubKeyFile = ""
+
 type ImageVersion struct {
 	Major    uint8
 	Minor    uint8
@@ -133,6 +138,7 @@ const (
 
 	IMAGE_F_PIC          = 0x00000001
 	IMAGE_F_NON_BOOTABLE = 0x00000002 /* non bootable image */
+	IMAGE_F_ENCRYPTED    = 0x00000004 /* encrypted image */
 )
 
 /*
@@ -149,6 +155,7 @@ const (
 	IMAGE_TLV_RSA2048  = 0x20
 	IMAGE_TLV_ECDSA224 = 0x21
 	IMAGE_TLV_ECDSA256 = 0x22
+	IMAGE_TLV_ENCKEY   = 0x30
 )
 
 /*
@@ -860,6 +867,44 @@ func (image *Image) generateV2(loader *Image) error {
 	}
 	defer imgFile.Close()
 
+	plainSecret := make([]byte, 16)
+	var cipherSecret []byte
+	if PubKeyFile != "" {
+		keyBytes, err := ioutil.ReadFile(PubKeyFile)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Error reading pubkey file: %s", err))
+		}
+
+		b, _ := pem.Decode(keyBytes)
+		if b == nil || (b.Type != "PUBLIC KEY" && b.Type != "RSA PUBLIC KEY") {
+			return util.NewNewtError(fmt.Sprintf("Error decoding pubkey file: %s", err))
+		}
+
+		pub, err := x509.ParsePKIXPublicKey(b.Bytes)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
+		}
+
+		var pubk *rsa.PublicKey
+		switch pub.(type) {
+		case *rsa.PublicKey:
+			pubk = pub.(*rsa.PublicKey)
+		default:
+			return util.NewNewtError(fmt.Sprintf("Error parsing pubkey file: %s", err))
+		}
+
+		_, err = rand.Read(plainSecret)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Random generation error: %s\n", err))
+		}
+
+		rng := rand.Reader
+		cipherSecret, err = rsa.EncryptOAEP(sha256.New(), rng, pubk, plainSecret, nil)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Error from encryption: %s\n", err))
+		}
+	}
+
 	/*
 	 * Compute hash while updating the file.
 	 */
@@ -890,6 +935,9 @@ func (image *Image) generateV2(loader *Image) error {
 	if loader != nil {
 		hdr.Flags |= IMAGE_F_NON_BOOTABLE
 	}
+	if cipherSecret != nil {
+		hdr.Flags |= IMAGE_F_ENCRYPTED
+	}
 
 	if image.HeaderSize != 0 {
 		/*
@@ -960,10 +1008,21 @@ func (image *Image) generateV2(loader *Image) error {
 		}
 	}
 
+	var stream cipher.Stream
+	if cipherSecret != nil {
+		block, err := aes.NewCipher(plainSecret)
+		if err != nil {
+			return util.NewNewtError("Failed to create block cipher")
+		}
+		nonce := []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		stream = cipher.NewCTR(block, nonce)
+	}
+
 	/*
 	 * Followed by data.
 	 */
-	dataBuf := make([]byte, 1024)
+	dataBuf := make([]byte, 16)
+	encBuf := make([]byte, 16)
 	for {
 		cnt, err := binFile.Read(dataBuf)
 		if err != nil && err != io.EOF {
@@ -973,16 +1032,21 @@ func (image *Image) generateV2(loader *Image) error {
 		if cnt == 0 {
 			break
 		}
-		_, err = imgFile.Write(dataBuf[0:cnt])
-		if err != nil {
-			return util.NewNewtError(fmt.Sprintf("Failed to write to %s: %s",
-				image.TargetImg, err.Error()))
-		}
 		_, err = hash.Write(dataBuf[0:cnt])
 		if err != nil {
 			return util.NewNewtError(fmt.Sprintf("Failed to hash data: %s",
 				err.Error()))
 		}
+		if cipherSecret == nil {
+			_, err = imgFile.Write(dataBuf[0:cnt])
+		} else {
+			stream.XORKeyStream(encBuf, dataBuf[0:cnt])
+			_, err = imgFile.Write(encBuf[0:cnt])
+		}
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Failed to write to %s: %s",
+				image.TargetImg, err.Error()))
+		}
 	}
 
 	image.Hash = hash.Sum(nil)
@@ -1122,6 +1186,24 @@ func (image *Image) generateV2(loader *Image) error {
 		}
 	}
 
+	if cipherSecret != nil {
+		tlv := &ImageTrailerTlv{
+			Type: IMAGE_TLV_ENCKEY,
+			Pad:  0,
+			Len:  uint16(len(cipherSecret)),
+		}
+		err = binary.Write(imgFile, binary.LittleEndian, tlv)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Failed to serialize image "+
+				"trailer: %s", err.Error()))
+		}
+		_, err = imgFile.Write(cipherSecret)
+		if err != nil {
+			return util.NewNewtError(fmt.Sprintf("Failed to append encrypted key: %s",
+				err.Error()))
+		}
+	}
+
 	util.StatusMessage(util.VERBOSITY_VERBOSE,
 		"Computed Hash for image %s as %s \n",
 		image.TargetImg, hex.EncodeToString(image.Hash))