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Posted to commits@mina.apache.org by je...@apache.org on 2013/11/27 13:26:08 UTC

[5/8] git commit: removed MD4 provider since it's bundled with the JRE

removed MD4 provider since it's bundled with the JRE


Project: http://git-wip-us.apache.org/repos/asf/mina/repo
Commit: http://git-wip-us.apache.org/repos/asf/mina/commit/9f9af070
Tree: http://git-wip-us.apache.org/repos/asf/mina/tree/9f9af070
Diff: http://git-wip-us.apache.org/repos/asf/mina/diff/9f9af070

Branch: refs/heads/2.0
Commit: 9f9af070c41fcba1d34afebc4f02183d7423db97
Parents: f42feed
Author: Julien Vermillard <jv...@apache.org>
Authored: Tue Feb 19 16:43:53 2013 +0100
Committer: Jeff MAURY <je...@apache.org>
Committed: Wed Nov 27 13:23:04 2013 +0100

----------------------------------------------------------------------
 .../java/org/apache/mina/proxy/utils/MD4.java   | 333 -------------------
 .../apache/mina/proxy/utils/MD4Provider.java    |  60 ----
 .../java/org/apache/mina/proxy/MD4Test.java     |  96 ------
 .../java/org/apache/mina/proxy/NTLMTest.java    |   9 +-
 .../mina/example/proxy/ProxyTestClient.java     |  12 +-
 5 files changed, 2 insertions(+), 508 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mina/blob/9f9af070/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4.java
----------------------------------------------------------------------
diff --git a/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4.java b/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4.java
deleted file mode 100644
index 5fa47bf..0000000
--- a/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4.java
+++ /dev/null
@@ -1,333 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one
- *  or more contributor license agreements.  See the NOTICE file
- *  distributed with this work for additional information
- *  regarding copyright ownership.  The ASF licenses this file
- *  to you 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.
- *
- */
-package org.apache.mina.proxy.utils;
-
-import java.security.DigestException;
-import java.security.MessageDigestSpi;
-
-/**
- * MD4.java - An implementation of Ron Rivest's MD4 message digest algorithm.
- * The MD4 algorithm is designed to be quite fast on 32-bit machines. In
- * addition, the MD4 algorithm does not require any large substitution
- * tables.
- *
- * @see The <a href="http://www.ietf.org/rfc/rfc1320.txt">MD4</a> Message-
- *    Digest Algorithm by R. Rivest.
- *
- * @author <a href="http://mina.apache.org">Apache MINA Project</a>
- * @since MINA 2.0.0-M3
- */
-public class MD4 extends MessageDigestSpi {
-
-    /**
-     * The MD4 algorithm message digest length is 16 bytes wide.
-     */
-    public static final int BYTE_DIGEST_LENGTH = 16;
-
-    /**
-     * The MD4 algorithm block length is 64 bytes wide.
-     */
-    public static final int BYTE_BLOCK_LENGTH = 64;
-
-    /**
-     * The initial values of the four registers. RFC gives the values 
-     * in LE so we converted it as JAVA uses BE endianness.
-     */
-    private final static int A = 0x67452301;
-
-    private final static int B = 0xefcdab89;
-
-    private final static int C = 0x98badcfe;
-
-    private final static int D = 0x10325476;
-
-    /**
-     * The four registers initialized with the above IVs.
-     */
-    private int a = A;
-
-    private int b = B;
-
-    private int c = C;
-
-    private int d = D;
-
-    /**
-     * Counts the total length of the data being digested.
-     */
-    private long msgLength;
-
-    /**
-     * The internal buffer is {@link BLOCK_LENGTH} wide.
-     */
-    private final byte[] buffer = new byte[BYTE_BLOCK_LENGTH];
-
-    /**
-     * Default constructor.
-     */
-    public MD4() {
-        // Do nothing
-    }
-
-    /**
-     * Returns the digest length in bytes.
-     *
-     * @return the digest length in bytes.
-     */
-    protected int engineGetDigestLength() {
-        return BYTE_DIGEST_LENGTH;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected void engineUpdate(byte b) {
-        int pos = (int) (msgLength % BYTE_BLOCK_LENGTH);
-        buffer[pos] = b;
-        msgLength++;
-
-        // If buffer contains enough data then process it.
-        if (pos == (BYTE_BLOCK_LENGTH - 1)) {
-            process(buffer, 0);
-        }
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected void engineUpdate(byte[] b, int offset, int len) {
-        int pos = (int) (msgLength % BYTE_BLOCK_LENGTH);
-        int nbOfCharsToFillBuf = BYTE_BLOCK_LENGTH - pos;
-        int blkStart = 0;
-
-        msgLength += len;
-
-        // Process each full block
-        if (len >= nbOfCharsToFillBuf) {
-            System.arraycopy(b, offset, buffer, pos, nbOfCharsToFillBuf);
-            process(buffer, 0);
-            for (blkStart = nbOfCharsToFillBuf; blkStart + BYTE_BLOCK_LENGTH - 1 < len; blkStart += BYTE_BLOCK_LENGTH) {
-                process(b, offset + blkStart);
-            }
-            pos = 0;
-        }
-
-        // Fill buffer with the remaining data
-        if (blkStart < len) {
-            System.arraycopy(b, offset + blkStart, buffer, pos, len - blkStart);
-        }
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected byte[] engineDigest() {
-        byte[] p = pad();
-        engineUpdate(p, 0, p.length);
-        byte[] digest = { (byte) a, (byte) (a >>> 8), (byte) (a >>> 16), (byte) (a >>> 24), (byte) b, (byte) (b >>> 8),
-                (byte) (b >>> 16), (byte) (b >>> 24), (byte) c, (byte) (c >>> 8), (byte) (c >>> 16), (byte) (c >>> 24),
-                (byte) d, (byte) (d >>> 8), (byte) (d >>> 16), (byte) (d >>> 24) };
-
-        engineReset();
-
-        return digest;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected int engineDigest(byte[] buf, int offset, int len) throws DigestException {
-        if (offset < 0 || offset + len >= buf.length) {
-            throw new DigestException("Wrong offset or not enough space to store the digest");
-        }
-        int destLength = Math.min(len, BYTE_DIGEST_LENGTH);
-        System.arraycopy(engineDigest(), 0, buf, offset, destLength);
-        return destLength;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    protected void engineReset() {
-        a = A;
-        b = B;
-        c = C;
-        d = D;
-        msgLength = 0;
-    }
-
-    /**
-     * Pads the buffer by appending the byte 0x80, then append as many zero 
-     * bytes as necessary to make the buffer length a multiple of 64 bytes.  
-     * The last 8 bytes will be filled with the length of the buffer in bits.
-     * If there's no room to store the length in bits in the block i.e the block 
-     * is larger than 56 bytes then an additionnal 64-bytes block is appended.
-     * 
-     * @see sections 3.1 & 3.2 of the RFC 1320.
-     * 
-     * @return the pad byte array
-     */
-    private byte[] pad() {
-        int pos = (int) (msgLength % BYTE_BLOCK_LENGTH);
-        int padLength = (pos < 56) ? (64 - pos) : (128 - pos);
-        byte[] pad = new byte[padLength];
-
-        // First bit of the padding set to 1
-        pad[0] = (byte) 0x80;
-
-        long bits = msgLength << 3;
-        int index = padLength - 8;
-        for (int i = 0; i < 8; i++) {
-            pad[index++] = (byte) (bits >>> (i << 3));
-        }
-
-        return pad;
-    }
-
-    /** 
-     * Process one 64-byte block. Algorithm is constituted by three rounds.
-     * Note that F, G and H functions were inlined for improved performance.
-     * 
-     * @param in the byte array to process
-     * @param offset the offset at which the 64-byte block is stored
-     */
-    private void process(byte[] in, int offset) {
-        // Save previous state.
-        int aa = a;
-        int bb = b;
-        int cc = c;
-        int dd = d;
-
-        // Copy the block to process into X array
-        int[] X = new int[16];
-        for (int i = 0; i < 16; i++) {
-            X[i] = (in[offset++] & 0xff) | (in[offset++] & 0xff) << 8 | (in[offset++] & 0xff) << 16
-                    | (in[offset++] & 0xff) << 24;
-        }
-
-        // Round 1
-        a += ((b & c) | (~b & d)) + X[0];
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & b) | (~a & c)) + X[1];
-        d = d << 7 | d >>> (32 - 7);
-        c += ((d & a) | (~d & b)) + X[2];
-        c = c << 11 | c >>> (32 - 11);
-        b += ((c & d) | (~c & a)) + X[3];
-        b = b << 19 | b >>> (32 - 19);
-        a += ((b & c) | (~b & d)) + X[4];
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & b) | (~a & c)) + X[5];
-        d = d << 7 | d >>> (32 - 7);
-        c += ((d & a) | (~d & b)) + X[6];
-        c = c << 11 | c >>> (32 - 11);
-        b += ((c & d) | (~c & a)) + X[7];
-        b = b << 19 | b >>> (32 - 19);
-        a += ((b & c) | (~b & d)) + X[8];
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & b) | (~a & c)) + X[9];
-        d = d << 7 | d >>> (32 - 7);
-        c += ((d & a) | (~d & b)) + X[10];
-        c = c << 11 | c >>> (32 - 11);
-        b += ((c & d) | (~c & a)) + X[11];
-        b = b << 19 | b >>> (32 - 19);
-        a += ((b & c) | (~b & d)) + X[12];
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & b) | (~a & c)) + X[13];
-        d = d << 7 | d >>> (32 - 7);
-        c += ((d & a) | (~d & b)) + X[14];
-        c = c << 11 | c >>> (32 - 11);
-        b += ((c & d) | (~c & a)) + X[15];
-        b = b << 19 | b >>> (32 - 19);
-
-        // Round 2
-        a += ((b & (c | d)) | (c & d)) + X[0] + 0x5a827999;
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & (b | c)) | (b & c)) + X[4] + 0x5a827999;
-        d = d << 5 | d >>> (32 - 5);
-        c += ((d & (a | b)) | (a & b)) + X[8] + 0x5a827999;
-        c = c << 9 | c >>> (32 - 9);
-        b += ((c & (d | a)) | (d & a)) + X[12] + 0x5a827999;
-        b = b << 13 | b >>> (32 - 13);
-        a += ((b & (c | d)) | (c & d)) + X[1] + 0x5a827999;
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & (b | c)) | (b & c)) + X[5] + 0x5a827999;
-        d = d << 5 | d >>> (32 - 5);
-        c += ((d & (a | b)) | (a & b)) + X[9] + 0x5a827999;
-        c = c << 9 | c >>> (32 - 9);
-        b += ((c & (d | a)) | (d & a)) + X[13] + 0x5a827999;
-        b = b << 13 | b >>> (32 - 13);
-        a += ((b & (c | d)) | (c & d)) + X[2] + 0x5a827999;
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & (b | c)) | (b & c)) + X[6] + 0x5a827999;
-        d = d << 5 | d >>> (32 - 5);
-        c += ((d & (a | b)) | (a & b)) + X[10] + 0x5a827999;
-        c = c << 9 | c >>> (32 - 9);
-        b += ((c & (d | a)) | (d & a)) + X[14] + 0x5a827999;
-        b = b << 13 | b >>> (32 - 13);
-        a += ((b & (c | d)) | (c & d)) + X[3] + 0x5a827999;
-        a = a << 3 | a >>> (32 - 3);
-        d += ((a & (b | c)) | (b & c)) + X[7] + 0x5a827999;
-        d = d << 5 | d >>> (32 - 5);
-        c += ((d & (a | b)) | (a & b)) + X[11] + 0x5a827999;
-        c = c << 9 | c >>> (32 - 9);
-        b += ((c & (d | a)) | (d & a)) + X[15] + 0x5a827999;
-        b = b << 13 | b >>> (32 - 13);
-
-        // Round 3
-        a += (b ^ c ^ d) + X[0] + 0x6ed9eba1;
-        a = a << 3 | a >>> (32 - 3);
-        d += (a ^ b ^ c) + X[8] + 0x6ed9eba1;
-        d = d << 9 | d >>> (32 - 9);
-        c += (d ^ a ^ b) + X[4] + 0x6ed9eba1;
-        c = c << 11 | c >>> (32 - 11);
-        b += (c ^ d ^ a) + X[12] + 0x6ed9eba1;
-        b = b << 15 | b >>> (32 - 15);
-        a += (b ^ c ^ d) + X[2] + 0x6ed9eba1;
-        a = a << 3 | a >>> (32 - 3);
-        d += (a ^ b ^ c) + X[10] + 0x6ed9eba1;
-        d = d << 9 | d >>> (32 - 9);
-        c += (d ^ a ^ b) + X[6] + 0x6ed9eba1;
-        c = c << 11 | c >>> (32 - 11);
-        b += (c ^ d ^ a) + X[14] + 0x6ed9eba1;
-        b = b << 15 | b >>> (32 - 15);
-        a += (b ^ c ^ d) + X[1] + 0x6ed9eba1;
-        a = a << 3 | a >>> (32 - 3);
-        d += (a ^ b ^ c) + X[9] + 0x6ed9eba1;
-        d = d << 9 | d >>> (32 - 9);
-        c += (d ^ a ^ b) + X[5] + 0x6ed9eba1;
-        c = c << 11 | c >>> (32 - 11);
-        b += (c ^ d ^ a) + X[13] + 0x6ed9eba1;
-        b = b << 15 | b >>> (32 - 15);
-        a += (b ^ c ^ d) + X[3] + 0x6ed9eba1;
-        a = a << 3 | a >>> (32 - 3);
-        d += (a ^ b ^ c) + X[11] + 0x6ed9eba1;
-        d = d << 9 | d >>> (32 - 9);
-        c += (d ^ a ^ b) + X[7] + 0x6ed9eba1;
-        c = c << 11 | c >>> (32 - 11);
-        b += (c ^ d ^ a) + X[15] + 0x6ed9eba1;
-        b = b << 15 | b >>> (32 - 15);
-
-        //Update state.
-        a += aa;
-        b += bb;
-        c += cc;
-        d += dd;
-    }
-}

http://git-wip-us.apache.org/repos/asf/mina/blob/9f9af070/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4Provider.java
----------------------------------------------------------------------
diff --git a/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4Provider.java b/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4Provider.java
deleted file mode 100644
index cdcfa60..0000000
--- a/mina-core/src/main/java/org/apache/mina/proxy/utils/MD4Provider.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one
- *  or more contributor license agreements.  See the NOTICE file
- *  distributed with this work for additional information
- *  regarding copyright ownership.  The ASF licenses this file
- *  to you 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.
- *
- */
-package org.apache.mina.proxy.utils;
-
-import java.security.Provider;
-
-/**
- * MD4Provider.java - A security provider that only provides a MD4 implementation.
- * 
- * @author <a href="http://mina.apache.org">Apache MINA Project</a>
- * @since MINA 2.0.0-M3
- */
-public class MD4Provider extends Provider {
-
-    /**
-     * The serial version UID.
-     */
-    private final static long serialVersionUID = -1616816866935565456L;
-
-    /**
-     * Provider name.
-     */
-    public final static String PROVIDER_NAME = "MINA";
-
-    /**
-     * Provider version.
-     */
-    public final static double VERSION = 1.00;
-
-    /**
-     * Provider information.
-     */
-    public final static String INFO = "MINA MD4 Provider v" + VERSION;
-
-    /**
-     * Default constructor that registers {@link MD4} as the <i>Service Provider 
-     * Interface</i> (<b>SPI</b>) of the MD4 message digest algorithm.
-     */
-    public MD4Provider() {
-        super(PROVIDER_NAME, VERSION, INFO);
-        put("MessageDigest.MD4", MD4.class.getName());
-    }
-}

http://git-wip-us.apache.org/repos/asf/mina/blob/9f9af070/mina-core/src/test/java/org/apache/mina/proxy/MD4Test.java
----------------------------------------------------------------------
diff --git a/mina-core/src/test/java/org/apache/mina/proxy/MD4Test.java b/mina-core/src/test/java/org/apache/mina/proxy/MD4Test.java
deleted file mode 100644
index 78b0b6d..0000000
--- a/mina-core/src/test/java/org/apache/mina/proxy/MD4Test.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one
- *  or more contributor license agreements.  See the NOTICE file
- *  distributed with this work for additional information
- *  regarding copyright ownership.  The ASF licenses this file
- *  to you 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.
- *
- */
-package org.apache.mina.proxy;
-
-import static org.apache.mina.proxy.utils.ByteUtilities.asHex;
-import static org.junit.Assert.assertEquals;
-
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.Security;
-
-import org.apache.mina.proxy.utils.MD4Provider;
-import org.junit.Before;
-import org.junit.Test;
-
-/**
- * MD4Test.java - JUnit testcase that tests the rfc 1320 test suite.
- * @see <a href="http://www.ietf.org/rfc/rfc1320.txt">RFC 1320</a>
- * 
- * @author <a href="http://mina.apache.org">Apache MINA Project</a>
- * @since MINA 2.0.0-M3
- */
-public class MD4Test {
-
-    /**
-     * {@inheritDoc}
-     */
-    @Before
-    public void setUp() throws Exception {
-        if (Security.getProvider(MD4Provider.PROVIDER_NAME) == null) {
-            System.out.print("Adding MINA provider...");
-            Security.addProvider(new MD4Provider());
-            //System.out.println(" [Ok]");
-        }
-    }
-
-    /**
-     * Test suite for the MD4 algorithm. 
-     */
-    @Test
-    public void testRFCVectors() throws NoSuchAlgorithmException, NoSuchProviderException {
-        MessageDigest md4 = MessageDigest.getInstance("MD4", MD4Provider.PROVIDER_NAME);
-        doTest(md4, "31d6cfe0d16ae931b73c59d7e0c089c0", "");
-        doTest(md4, "bde52cb31de33e46245e05fbdbd6fb24", "a");
-        doTest(md4, "a448017aaf21d8525fc10ae87aa6729d", "abc");
-        doTest(md4, "d9130a8164549fe818874806e1c7014b", "message digest");
-        doTest(md4, "d79e1c308aa5bbcdeea8ed63df412da9", "abcdefghijklmnopqrstuvwxyz");
-        doTest(md4, "043f8582f241db351ce627e153e7f0e4",
-                "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
-        doTest(md4, "e33b4ddc9c38f2199c3e7b164fcc0536",
-                "12345678901234567890123456789012345678901234567890123456789012345678901234567890");
-    }
-
-    /**
-     * Original test vector found on <a href="http://en.wikipedia.org/wiki/MD4">wikipedia(en)</a>
-     * and <a href="http://fr.wikipedia.org/wiki/MD4">wikipedia(fr)</a>
-     */
-    @Test
-    public void testWikipediaVectors() throws NoSuchAlgorithmException, NoSuchProviderException {
-        MessageDigest md4 = MessageDigest.getInstance("MD4", MD4Provider.PROVIDER_NAME);
-        doTest(md4, "b94e66e0817dd34dc7858a0c131d4079", "Wikipedia, l'encyclopedie libre et gratuite");
-        doTest(md4, "1bee69a46ba811185c194762abaeae90", "The quick brown fox jumps over the lazy dog");
-        doTest(md4, "b86e130ce7028da59e672d56ad0113df", "The quick brown fox jumps over the lazy cog");
-    }
-
-    /**
-     * Performs md4 digesting on the provided test vector and verifies that the
-     * result equals to the expected result.
-     * 
-     * @param md4 the md4 message digester
-     * @param expected the expected hex formatted string
-     * @param testVector the string message
-     */
-    private static void doTest(MessageDigest md4, String expected, String testVector) {
-        String result = asHex(md4.digest(testVector.getBytes()));
-        assertEquals(expected, result);
-    }
-}

http://git-wip-us.apache.org/repos/asf/mina/blob/9f9af070/mina-core/src/test/java/org/apache/mina/proxy/NTLMTest.java
----------------------------------------------------------------------
diff --git a/mina-core/src/test/java/org/apache/mina/proxy/NTLMTest.java b/mina-core/src/test/java/org/apache/mina/proxy/NTLMTest.java
index f3fea78..c3e2375 100644
--- a/mina-core/src/test/java/org/apache/mina/proxy/NTLMTest.java
+++ b/mina-core/src/test/java/org/apache/mina/proxy/NTLMTest.java
@@ -31,7 +31,6 @@ import java.security.Security;
 import org.apache.mina.proxy.handlers.http.ntlm.NTLMResponses;
 import org.apache.mina.proxy.handlers.http.ntlm.NTLMUtilities;
 import org.apache.mina.proxy.utils.ByteUtilities;
-import org.apache.mina.proxy.utils.MD4Provider;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -45,12 +44,6 @@ import org.slf4j.LoggerFactory;
 public class NTLMTest {
     private final static Logger logger = LoggerFactory.getLogger(NTLMTest.class);
 
-    static {
-        if (Security.getProvider("MINA") == null) {
-            Security.addProvider(new MD4Provider());
-        }
-    }
-
     /**
      * Tests bytes manipulations.
      */
@@ -243,4 +236,4 @@ public class NTLMTest {
                 ByteUtilities.asByteArray(targetInformation), ByteUtilities.asByteArray("0123456789abcdef"),
                 ByteUtilities.asByteArray("ffffff0011223344"), 1055844000000L)));
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/mina/blob/9f9af070/mina-example/src/test/java/org/apache/mina/example/proxy/ProxyTestClient.java
----------------------------------------------------------------------
diff --git a/mina-example/src/test/java/org/apache/mina/example/proxy/ProxyTestClient.java b/mina-example/src/test/java/org/apache/mina/example/proxy/ProxyTestClient.java
index b913dee..443165c 100644
--- a/mina-example/src/test/java/org/apache/mina/example/proxy/ProxyTestClient.java
+++ b/mina-example/src/test/java/org/apache/mina/example/proxy/ProxyTestClient.java
@@ -39,7 +39,6 @@ import org.apache.mina.proxy.handlers.http.HttpProxyRequest;
 import org.apache.mina.proxy.handlers.socks.SocksProxyConstants;
 import org.apache.mina.proxy.handlers.socks.SocksProxyRequest;
 import org.apache.mina.proxy.session.ProxyIoSession;
-import org.apache.mina.proxy.utils.MD4Provider;
 import org.apache.mina.transport.socket.nio.NioSocketConnector;
 
 /**
@@ -80,15 +79,6 @@ public class ProxyTestClient {
     private final static boolean USE_HTTP_1_1 = false;
 
     /**
-     * NTLM proxy authentication needs a JCE provider that handles MD4 hashing.
-     */
-    static {
-        if (Security.getProvider("MINA") == null) {
-            Security.addProvider(new MD4Provider());
-        }
-    }
-
-    /**
      * Creates a connection to the endpoint through a proxy server using the specified
      * authentication method.
      * 
@@ -227,4 +217,4 @@ public class ProxyTestClient {
     public static void main(String[] args) throws Exception {
         new ProxyTestClient(args);
     }
-}
\ No newline at end of file
+}