[jira] [Commented] (KNOX-2527) Support HMAC signature/verification in JWT token authority

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KNOX-2527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17272323#comment-17272323 ] 

ASF subversion and git services commented on KNOX-2527:
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Commit 5bcc50cbfb09ce43dcea388a16cb11a61fc88043 in knox's branch refs/heads/master from Sandor Molnar
[ https://gitbox.apache.org/repos/asf?p=knox.git;h=5bcc50c ]

KNOX-2527 - Added support for HMAC signature/verification in JWT token authority (#397)



> Support HMAC signature/verification in JWT token authority
> ----------------------------------------------------------
>
>                 Key: KNOX-2527
>                 URL: https://issues.apache.org/jira/browse/KNOX-2527
>             Project: Apache Knox
>          Issue Type: New Feature
>          Components: KnoxSSO, Server
>    Affects Versions: 1.5.0
>            Reporter: Sandor Molnar
>            Assignee: Sandor Molnar
>            Priority: Major
>             Fix For: 1.6.0
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> As of now, in {{DefaultTokenAuthorityService}}, the generated JWT token is signed by RSA (PKI). It would be beneficial to add support for HMAC as well so that token signature/verification would not require a keystore being set but using a secret stored via Knox's alias service. The recommended alias name is {{gateway.signing.hmac.secret}}
>  To support backward compatibility, the implementation should use HMAC signature/verification only if:
>  - the HMAC secret is configured via the alias service for the gateway, and
>  - there is no previously pre-configured {{gateway.signing.keystore.name}} which is a clear indication of end-user preference of using PKI signatures.
> The default HMAC signing algorithm should be {{HS256}} (HMAC using SHA-256 hash algorithm) and clients should be able to change it by already existing request parameters called {{knoxsso.token.sigalg}} or {{knox.token.sigalg}}. Other valid values are:
>  - {{HS384}} (HMAC using SHA-384 hash algorithm)
>  - {{HS512}} (HMAC using SHA-512 hash algorithm)



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