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472 lines
14 KiB
472 lines
14 KiB
// $Id: SHA0.java 214 2010-06-03 17:25:08Z tp $ |
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package fr.cryptohash; |
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/** |
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* <p>This class implements the SHA-0 digest algorithm under the {@link |
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* Digest} API. SHA-0 was defined by FIPS 180 (the original standard, |
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* now obsolete).</p> |
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* |
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* <pre> |
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* ==========================(LICENSE BEGIN)============================ |
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* |
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* ===========================(LICENSE END)============================= |
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* </pre> |
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* |
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* @version $Revision: 214 $ |
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* @author Thomas Pornin <[email protected]> |
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*/ |
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public class SHA0 extends MDHelper { |
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/** |
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* Build the object. |
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*/ |
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public SHA0() |
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{ |
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super(false, 8); |
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} |
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private int[] currentVal; |
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/** @see Digest */ |
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public Digest copy() |
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{ |
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SHA0 d = new SHA0(); |
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System.arraycopy(currentVal, 0, d.currentVal, 0, |
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currentVal.length); |
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return copyState(d); |
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} |
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/** @see Digest */ |
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public int getDigestLength() |
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{ |
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return 20; |
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} |
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/** @see Digest */ |
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public int getBlockLength() |
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{ |
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return 64; |
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} |
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/** @see DigestEngine */ |
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protected void engineReset() |
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{ |
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currentVal[0] = (int)0x67452301; |
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currentVal[1] = (int)0xEFCDAB89; |
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currentVal[2] = (int)0x98BADCFE; |
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currentVal[3] = (int)0x10325476; |
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currentVal[4] = (int)0xC3D2E1F0; |
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} |
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/** @see DigestEngine */ |
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protected void doPadding(byte[] output, int outputOffset) |
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{ |
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makeMDPadding(); |
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for (int i = 0; i < 5; i ++) |
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encodeBEInt(currentVal[i], |
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output, outputOffset + 4 * i); |
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} |
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/** @see DigestEngine */ |
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protected void doInit() |
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{ |
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currentVal = new int[5]; |
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engineReset(); |
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} |
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/** |
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* Encode the 32-bit word {@code val} into the array |
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* {@code buf} at offset {@code off}, in big-endian |
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* convention (most significant byte first). |
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* |
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* @param val the value to encode |
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* @param buf the destination buffer |
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* @param off the destination offset |
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*/ |
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private static final void encodeBEInt(int val, byte[] buf, int off) |
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{ |
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buf[off + 0] = (byte)(val >>> 24); |
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buf[off + 1] = (byte)(val >>> 16); |
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buf[off + 2] = (byte)(val >>> 8); |
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buf[off + 3] = (byte)val; |
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} |
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/** |
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* Decode a 32-bit big-endian word from the array {@code buf} |
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* at offset {@code off}. |
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* |
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* @param buf the source buffer |
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* @param off the source offset |
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* @return the decoded value |
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*/ |
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private static final int decodeBEInt(byte[] buf, int off) |
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{ |
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return ((buf[off] & 0xFF) << 24) |
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| ((buf[off + 1] & 0xFF) << 16) |
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| ((buf[off + 2] & 0xFF) << 8) |
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| (buf[off + 3] & 0xFF); |
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} |
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/** @see DigestEngine */ |
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protected void processBlock(byte[] data) |
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{ |
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int A = currentVal[0], B = currentVal[1]; |
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int C = currentVal[2], D = currentVal[3], E = currentVal[4]; |
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int W0 = decodeBEInt(data, 0); |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (~B & D)) |
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+ E + W0 + 0x5A827999; |
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B = (B << 30) | (B >>> 2); |
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int W1 = decodeBEInt(data, 4); |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (~A & C)) |
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+ D + W1 + 0x5A827999; |
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A = (A << 30) | (A >>> 2); |
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int W2 = decodeBEInt(data, 8); |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (~E & B)) |
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+ C + W2 + 0x5A827999; |
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E = (E << 30) | (E >>> 2); |
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int W3 = decodeBEInt(data, 12); |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (~D & A)) |
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+ B + W3 + 0x5A827999; |
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D = (D << 30) | (D >>> 2); |
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int W4 = decodeBEInt(data, 16); |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (~C & E)) |
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+ A + W4 + 0x5A827999; |
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C = (C << 30) | (C >>> 2); |
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int W5 = decodeBEInt(data, 20); |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (~B & D)) |
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+ E + W5 + 0x5A827999; |
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B = (B << 30) | (B >>> 2); |
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int W6 = decodeBEInt(data, 24); |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (~A & C)) |
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+ D + W6 + 0x5A827999; |
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A = (A << 30) | (A >>> 2); |
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int W7 = decodeBEInt(data, 28); |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (~E & B)) |
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+ C + W7 + 0x5A827999; |
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E = (E << 30) | (E >>> 2); |
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int W8 = decodeBEInt(data, 32); |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (~D & A)) |
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+ B + W8 + 0x5A827999; |
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D = (D << 30) | (D >>> 2); |
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int W9 = decodeBEInt(data, 36); |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (~C & E)) |
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+ A + W9 + 0x5A827999; |
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C = (C << 30) | (C >>> 2); |
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int Wa = decodeBEInt(data, 40); |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (~B & D)) |
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+ E + Wa + 0x5A827999; |
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B = (B << 30) | (B >>> 2); |
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int Wb = decodeBEInt(data, 44); |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (~A & C)) |
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+ D + Wb + 0x5A827999; |
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A = (A << 30) | (A >>> 2); |
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int Wc = decodeBEInt(data, 48); |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (~E & B)) |
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+ C + Wc + 0x5A827999; |
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E = (E << 30) | (E >>> 2); |
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int Wd = decodeBEInt(data, 52); |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (~D & A)) |
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+ B + Wd + 0x5A827999; |
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D = (D << 30) | (D >>> 2); |
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int We = decodeBEInt(data, 56); |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (~C & E)) |
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+ A + We + 0x5A827999; |
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C = (C << 30) | (C >>> 2); |
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int Wf = decodeBEInt(data, 60); |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (~B & D)) |
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+ E + Wf + 0x5A827999; |
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B = (B << 30) | (B >>> 2); |
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W0 = Wd ^ W8 ^ W2 ^ W0; |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (~A & C)) |
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+ D + W0 + 0x5A827999; |
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A = (A << 30) | (A >>> 2); |
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W1 = We ^ W9 ^ W3 ^ W1; |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (~E & B)) |
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+ C + W1 + 0x5A827999; |
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E = (E << 30) | (E >>> 2); |
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W2 = Wf ^ Wa ^ W4 ^ W2; |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (~D & A)) |
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+ B + W2 + 0x5A827999; |
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D = (D << 30) | (D >>> 2); |
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W3 = W0 ^ Wb ^ W5 ^ W3; |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (~C & E)) |
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+ A + W3 + 0x5A827999; |
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C = (C << 30) | (C >>> 2); |
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W4 = W1 ^ Wc ^ W6 ^ W4; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + W4 + 0x6ED9EBA1; |
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B = (B << 30) | (B >>> 2); |
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W5 = W2 ^ Wd ^ W7 ^ W5; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + W5 + 0x6ED9EBA1; |
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A = (A << 30) | (A >>> 2); |
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W6 = W3 ^ We ^ W8 ^ W6; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + W6 + 0x6ED9EBA1; |
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E = (E << 30) | (E >>> 2); |
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W7 = W4 ^ Wf ^ W9 ^ W7; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + W7 + 0x6ED9EBA1; |
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D = (D << 30) | (D >>> 2); |
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W8 = W5 ^ W0 ^ Wa ^ W8; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + W8 + 0x6ED9EBA1; |
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C = (C << 30) | (C >>> 2); |
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W9 = W6 ^ W1 ^ Wb ^ W9; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + W9 + 0x6ED9EBA1; |
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B = (B << 30) | (B >>> 2); |
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Wa = W7 ^ W2 ^ Wc ^ Wa; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + Wa + 0x6ED9EBA1; |
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A = (A << 30) | (A >>> 2); |
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Wb = W8 ^ W3 ^ Wd ^ Wb; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + Wb + 0x6ED9EBA1; |
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E = (E << 30) | (E >>> 2); |
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Wc = W9 ^ W4 ^ We ^ Wc; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + Wc + 0x6ED9EBA1; |
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D = (D << 30) | (D >>> 2); |
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Wd = Wa ^ W5 ^ Wf ^ Wd; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + Wd + 0x6ED9EBA1; |
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C = (C << 30) | (C >>> 2); |
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We = Wb ^ W6 ^ W0 ^ We; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + We + 0x6ED9EBA1; |
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B = (B << 30) | (B >>> 2); |
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Wf = Wc ^ W7 ^ W1 ^ Wf; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + Wf + 0x6ED9EBA1; |
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A = (A << 30) | (A >>> 2); |
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W0 = Wd ^ W8 ^ W2 ^ W0; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + W0 + 0x6ED9EBA1; |
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E = (E << 30) | (E >>> 2); |
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W1 = We ^ W9 ^ W3 ^ W1; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + W1 + 0x6ED9EBA1; |
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D = (D << 30) | (D >>> 2); |
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W2 = Wf ^ Wa ^ W4 ^ W2; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + W2 + 0x6ED9EBA1; |
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C = (C << 30) | (C >>> 2); |
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W3 = W0 ^ Wb ^ W5 ^ W3; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + W3 + 0x6ED9EBA1; |
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B = (B << 30) | (B >>> 2); |
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W4 = W1 ^ Wc ^ W6 ^ W4; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + W4 + 0x6ED9EBA1; |
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A = (A << 30) | (A >>> 2); |
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W5 = W2 ^ Wd ^ W7 ^ W5; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + W5 + 0x6ED9EBA1; |
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E = (E << 30) | (E >>> 2); |
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W6 = W3 ^ We ^ W8 ^ W6; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + W6 + 0x6ED9EBA1; |
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D = (D << 30) | (D >>> 2); |
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W7 = W4 ^ Wf ^ W9 ^ W7; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + W7 + 0x6ED9EBA1; |
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C = (C << 30) | (C >>> 2); |
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W8 = W5 ^ W0 ^ Wa ^ W8; |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (B & D) | (C & D)) |
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+ E + W8 + 0x8F1BBCDC; |
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B = (B << 30) | (B >>> 2); |
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W9 = W6 ^ W1 ^ Wb ^ W9; |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (A & C) | (B & C)) |
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+ D + W9 + 0x8F1BBCDC; |
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A = (A << 30) | (A >>> 2); |
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Wa = W7 ^ W2 ^ Wc ^ Wa; |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (E & B) | (A & B)) |
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+ C + Wa + 0x8F1BBCDC; |
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E = (E << 30) | (E >>> 2); |
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Wb = W8 ^ W3 ^ Wd ^ Wb; |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (D & A) | (E & A)) |
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+ B + Wb + 0x8F1BBCDC; |
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D = (D << 30) | (D >>> 2); |
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Wc = W9 ^ W4 ^ We ^ Wc; |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (C & E) | (D & E)) |
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+ A + Wc + 0x8F1BBCDC; |
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C = (C << 30) | (C >>> 2); |
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Wd = Wa ^ W5 ^ Wf ^ Wd; |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (B & D) | (C & D)) |
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+ E + Wd + 0x8F1BBCDC; |
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B = (B << 30) | (B >>> 2); |
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We = Wb ^ W6 ^ W0 ^ We; |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (A & C) | (B & C)) |
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+ D + We + 0x8F1BBCDC; |
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A = (A << 30) | (A >>> 2); |
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Wf = Wc ^ W7 ^ W1 ^ Wf; |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (E & B) | (A & B)) |
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+ C + Wf + 0x8F1BBCDC; |
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E = (E << 30) | (E >>> 2); |
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W0 = Wd ^ W8 ^ W2 ^ W0; |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (D & A) | (E & A)) |
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+ B + W0 + 0x8F1BBCDC; |
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D = (D << 30) | (D >>> 2); |
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W1 = We ^ W9 ^ W3 ^ W1; |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (C & E) | (D & E)) |
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+ A + W1 + 0x8F1BBCDC; |
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C = (C << 30) | (C >>> 2); |
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W2 = Wf ^ Wa ^ W4 ^ W2; |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (B & D) | (C & D)) |
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+ E + W2 + 0x8F1BBCDC; |
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B = (B << 30) | (B >>> 2); |
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W3 = W0 ^ Wb ^ W5 ^ W3; |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (A & C) | (B & C)) |
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+ D + W3 + 0x8F1BBCDC; |
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A = (A << 30) | (A >>> 2); |
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W4 = W1 ^ Wc ^ W6 ^ W4; |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (E & B) | (A & B)) |
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+ C + W4 + 0x8F1BBCDC; |
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E = (E << 30) | (E >>> 2); |
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W5 = W2 ^ Wd ^ W7 ^ W5; |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (D & A) | (E & A)) |
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+ B + W5 + 0x8F1BBCDC; |
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D = (D << 30) | (D >>> 2); |
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W6 = W3 ^ We ^ W8 ^ W6; |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (C & E) | (D & E)) |
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+ A + W6 + 0x8F1BBCDC; |
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C = (C << 30) | (C >>> 2); |
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W7 = W4 ^ Wf ^ W9 ^ W7; |
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E = ((A << 5) | (A >>> 27)) + ((B & C) | (B & D) | (C & D)) |
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+ E + W7 + 0x8F1BBCDC; |
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B = (B << 30) | (B >>> 2); |
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W8 = W5 ^ W0 ^ Wa ^ W8; |
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D = ((E << 5) | (E >>> 27)) + ((A & B) | (A & C) | (B & C)) |
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+ D + W8 + 0x8F1BBCDC; |
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A = (A << 30) | (A >>> 2); |
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W9 = W6 ^ W1 ^ Wb ^ W9; |
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C = ((D << 5) | (D >>> 27)) + ((E & A) | (E & B) | (A & B)) |
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+ C + W9 + 0x8F1BBCDC; |
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E = (E << 30) | (E >>> 2); |
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Wa = W7 ^ W2 ^ Wc ^ Wa; |
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B = ((C << 5) | (C >>> 27)) + ((D & E) | (D & A) | (E & A)) |
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+ B + Wa + 0x8F1BBCDC; |
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D = (D << 30) | (D >>> 2); |
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Wb = W8 ^ W3 ^ Wd ^ Wb; |
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A = ((B << 5) | (B >>> 27)) + ((C & D) | (C & E) | (D & E)) |
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+ A + Wb + 0x8F1BBCDC; |
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C = (C << 30) | (C >>> 2); |
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Wc = W9 ^ W4 ^ We ^ Wc; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + Wc + 0xCA62C1D6; |
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B = (B << 30) | (B >>> 2); |
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Wd = Wa ^ W5 ^ Wf ^ Wd; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + Wd + 0xCA62C1D6; |
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A = (A << 30) | (A >>> 2); |
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We = Wb ^ W6 ^ W0 ^ We; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + We + 0xCA62C1D6; |
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E = (E << 30) | (E >>> 2); |
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Wf = Wc ^ W7 ^ W1 ^ Wf; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + Wf + 0xCA62C1D6; |
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D = (D << 30) | (D >>> 2); |
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W0 = Wd ^ W8 ^ W2 ^ W0; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + W0 + 0xCA62C1D6; |
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C = (C << 30) | (C >>> 2); |
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W1 = We ^ W9 ^ W3 ^ W1; |
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E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
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+ E + W1 + 0xCA62C1D6; |
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B = (B << 30) | (B >>> 2); |
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W2 = Wf ^ Wa ^ W4 ^ W2; |
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D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
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+ D + W2 + 0xCA62C1D6; |
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A = (A << 30) | (A >>> 2); |
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W3 = W0 ^ Wb ^ W5 ^ W3; |
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C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
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+ C + W3 + 0xCA62C1D6; |
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E = (E << 30) | (E >>> 2); |
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W4 = W1 ^ Wc ^ W6 ^ W4; |
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B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
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+ B + W4 + 0xCA62C1D6; |
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D = (D << 30) | (D >>> 2); |
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W5 = W2 ^ Wd ^ W7 ^ W5; |
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A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
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+ A + W5 + 0xCA62C1D6; |
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C = (C << 30) | (C >>> 2); |
|
W6 = W3 ^ We ^ W8 ^ W6; |
|
E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
|
+ E + W6 + 0xCA62C1D6; |
|
B = (B << 30) | (B >>> 2); |
|
W7 = W4 ^ Wf ^ W9 ^ W7; |
|
D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
|
+ D + W7 + 0xCA62C1D6; |
|
A = (A << 30) | (A >>> 2); |
|
W8 = W5 ^ W0 ^ Wa ^ W8; |
|
C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
|
+ C + W8 + 0xCA62C1D6; |
|
E = (E << 30) | (E >>> 2); |
|
W9 = W6 ^ W1 ^ Wb ^ W9; |
|
B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
|
+ B + W9 + 0xCA62C1D6; |
|
D = (D << 30) | (D >>> 2); |
|
Wa = W7 ^ W2 ^ Wc ^ Wa; |
|
A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
|
+ A + Wa + 0xCA62C1D6; |
|
C = (C << 30) | (C >>> 2); |
|
Wb = W8 ^ W3 ^ Wd ^ Wb; |
|
E = ((A << 5) | (A >>> 27)) + (B ^ C ^ D) |
|
+ E + Wb + 0xCA62C1D6; |
|
B = (B << 30) | (B >>> 2); |
|
Wc = W9 ^ W4 ^ We ^ Wc; |
|
D = ((E << 5) | (E >>> 27)) + (A ^ B ^ C) |
|
+ D + Wc + 0xCA62C1D6; |
|
A = (A << 30) | (A >>> 2); |
|
Wd = Wa ^ W5 ^ Wf ^ Wd; |
|
C = ((D << 5) | (D >>> 27)) + (E ^ A ^ B) |
|
+ C + Wd + 0xCA62C1D6; |
|
E = (E << 30) | (E >>> 2); |
|
We = Wb ^ W6 ^ W0 ^ We; |
|
B = ((C << 5) | (C >>> 27)) + (D ^ E ^ A) |
|
+ B + We + 0xCA62C1D6; |
|
D = (D << 30) | (D >>> 2); |
|
Wf = Wc ^ W7 ^ W1 ^ Wf; |
|
A = ((B << 5) | (B >>> 27)) + (C ^ D ^ E) |
|
+ A + Wf + 0xCA62C1D6; |
|
C = (C << 30) | (C >>> 2); |
|
|
|
currentVal[0] += A; |
|
currentVal[1] += B; |
|
currentVal[2] += C; |
|
currentVal[3] += D; |
|
currentVal[4] += E; |
|
} |
|
|
|
/** @see Digest */ |
|
public String toString() |
|
{ |
|
return "SHA-0"; |
|
} |
|
}
|
|
|