//
-// System.Security.Cryptography MD5CryptoServiceProvider Class implementation
+// System.Security.Cryptography.MD5CryptoServiceProvider.cs
//
// Authors:
// Matthew S. Ford (Matthew.S.Ford@Rose-Hulman.Edu)
-// Sebastien Pouliot (spouliot@motus.com)
+// Sebastien Pouliot (sebastien@ximian.com)
//
// Copyright 2001 by Matthew S. Ford.
+// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
+// 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.
+//
+
+using System.Runtime.InteropServices;
namespace System.Security.Cryptography {
- /// <summary>
- /// C# implementation of the MD5 cryptographic hash function.
- /// </summary>
-#if USE_VERSION_1_0
- public class MD5CryptoServiceProvider : MD5 {
-#else
+ [ComVisible (true)]
public sealed class MD5CryptoServiceProvider : MD5 {
-#endif
private const int BLOCK_SIZE_BYTES = 64;
- private const int HASH_SIZE_BYTES = 16;
- private const int HASH_SIZE_BITS = 128;
- [CLSCompliant(false)] private uint[] _H;
- [CLSCompliant(false)] private uint count;
+ private uint[] _H;
+ private uint[] buff;
+ private ulong count;
private byte[] _ProcessingBuffer; // Used to start data when passed less than a block worth.
private int _ProcessingBufferCount; // Counts how much data we have stored that still needs processed.
- /// <summary>
- /// Creates a new MD5CryptoServiceProvider.
- /// </summary>
public MD5CryptoServiceProvider ()
{
_H = new uint[4];
- HashSizeValue = HASH_SIZE_BITS;
- _ProcessingBuffer = new byte[BLOCK_SIZE_BYTES];
+ buff = new uint[16];
+ _ProcessingBuffer = new byte [BLOCK_SIZE_BYTES];
Initialize();
}
protected override void Dispose (bool disposing)
{
- // nothing to do (managed implementation)
+ if (_ProcessingBuffer != null) {
+ Array.Clear (_ProcessingBuffer, 0, _ProcessingBuffer.Length);
+ _ProcessingBuffer = null;
+ }
+ if (_H != null) {
+ Array.Clear (_H, 0, _H.Length);
+ _H = null;
+ }
+ if (buff != null) {
+ Array.Clear (buff, 0, buff.Length);
+ buff = null;
+ }
}
- /// <summary>
- /// Drives the hashing function.
- /// </summary>
- /// <param name="rgb">Byte array containing the data to hash.</param>
- /// <param name="start">Where in the input buffer to start.</param>
- /// <param name="size">Size in bytes of the data in the buffer to hash.</param>
- protected override void HashCore (byte[] rgb, int start, int size)
+ protected override void HashCore (byte[] rgb, int ibStart, int cbSize)
{
int i;
State = 1;
if (_ProcessingBufferCount != 0) {
- if (size < (BLOCK_SIZE_BYTES - _ProcessingBufferCount)) {
- System.Buffer.BlockCopy (rgb, start, _ProcessingBuffer, _ProcessingBufferCount, size);
- _ProcessingBufferCount += size;
+ if (cbSize < (BLOCK_SIZE_BYTES - _ProcessingBufferCount)) {
+ System.Buffer.BlockCopy (rgb, ibStart, _ProcessingBuffer, _ProcessingBufferCount, cbSize);
+ _ProcessingBufferCount += cbSize;
return;
}
else {
i = (BLOCK_SIZE_BYTES - _ProcessingBufferCount);
- System.Buffer.BlockCopy (rgb, start, _ProcessingBuffer, _ProcessingBufferCount, i);
+ System.Buffer.BlockCopy (rgb, ibStart, _ProcessingBuffer, _ProcessingBufferCount, i);
ProcessBlock (_ProcessingBuffer, 0);
_ProcessingBufferCount = 0;
- start += i;
- size -= i;
+ ibStart += i;
+ cbSize -= i;
}
}
- for (i=0; i<size-size%BLOCK_SIZE_BYTES; i += BLOCK_SIZE_BYTES) {
- ProcessBlock (rgb, start+i);
+ for (i = 0; i < cbSize - cbSize % BLOCK_SIZE_BYTES; i += BLOCK_SIZE_BYTES) {
+ ProcessBlock (rgb, ibStart + i);
}
- if (size%BLOCK_SIZE_BYTES != 0) {
- System.Buffer.BlockCopy (rgb, size-size%BLOCK_SIZE_BYTES+start, _ProcessingBuffer, 0, size%BLOCK_SIZE_BYTES);
- _ProcessingBufferCount = size%BLOCK_SIZE_BYTES;
+ if (cbSize % BLOCK_SIZE_BYTES != 0) {
+ System.Buffer.BlockCopy (rgb, cbSize - cbSize % BLOCK_SIZE_BYTES + ibStart, _ProcessingBuffer, 0, cbSize % BLOCK_SIZE_BYTES);
+ _ProcessingBufferCount = cbSize % BLOCK_SIZE_BYTES;
}
}
- /// <summary>
- /// This finalizes the hash. Takes the data from the chaining variables and returns it.
- /// </summary>
protected override byte[] HashFinal ()
{
byte[] hash = new byte[16];
int i, j;
- ProcessFinalBlock(_ProcessingBuffer, 0, _ProcessingBufferCount);
+ ProcessFinalBlock (_ProcessingBuffer, 0, _ProcessingBufferCount);
for (i=0; i<4; i++) {
for (j=0; j<4; j++) {
return hash;
}
- /// <summary>
- /// Resets the class after use. Called automatically after hashing is done.
- /// </summary>
public override void Initialize ()
{
count = 0;
_H[3] = 0x10325476;
}
- /// <summary>
- /// This is the meat of the hash function. It is what processes each block one at a time.
- /// </summary>
- /// <param name="inputBuffer">Byte array to process data from.</param>
- /// <param name="inputOffset">Where in the byte array to start processing.</param>
private void ProcessBlock (byte[] inputBuffer, int inputOffset)
{
- uint[] buff = new uint[16];
uint a, b, c, d;
int i;
// This function was unrolled because it seems to be doubling our performance with current compiler/VM.
// Possibly roll up if this changes.
-
// ---- Round 1 --------
- a += (((c ^ d) & b) ^ d) + (uint) Constants.C0 + buff [0];
+ a += (((c ^ d) & b) ^ d) + (uint) K [0] + buff [0];
a = (a << 7) | (a >> 25);
a += b;
- d += (((b ^ c) & a) ^ c) + (uint) Constants.C1 + buff [1];
+ d += (((b ^ c) & a) ^ c) + (uint) K [1] + buff [1];
d = (d << 12) | (d >> 20);
d += a;
- c += (((a ^ b) & d) ^ b) + (uint) Constants.C2 + buff [2];
+ c += (((a ^ b) & d) ^ b) + (uint) K [2] + buff [2];
c = (c << 17) | (c >> 15);
c += d;
- b += (((d ^ a) & c) ^ a) + (uint) Constants.C3 + buff [3];
+ b += (((d ^ a) & c) ^ a) + (uint) K [3] + buff [3];
b = (b << 22) | (b >> 10);
b += c;
- a += (((c ^ d) & b) ^ d) + (uint) Constants.C4 + buff [4];
+ a += (((c ^ d) & b) ^ d) + (uint) K [4] + buff [4];
a = (a << 7) | (a >> 25);
a += b;
- d += (((b ^ c) & a) ^ c) + (uint) Constants.C5 + buff [5];
+ d += (((b ^ c) & a) ^ c) + (uint) K [5] + buff [5];
d = (d << 12) | (d >> 20);
d += a;
- c += (((a ^ b) & d) ^ b) + (uint) Constants.C6 + buff [6];
+ c += (((a ^ b) & d) ^ b) + (uint) K [6] + buff [6];
c = (c << 17) | (c >> 15);
c += d;
- b += (((d ^ a) & c) ^ a) + (uint) Constants.C7 + buff [7];
+ b += (((d ^ a) & c) ^ a) + (uint) K [7] + buff [7];
b = (b << 22) | (b >> 10);
b += c;
- a += (((c ^ d) & b) ^ d) + (uint) Constants.C8 + buff [8];
+ a += (((c ^ d) & b) ^ d) + (uint) K [8] + buff [8];
a = (a << 7) | (a >> 25);
a += b;
- d += (((b ^ c) & a) ^ c) + (uint) Constants.C9 + buff [9];
+ d += (((b ^ c) & a) ^ c) + (uint) K [9] + buff [9];
d = (d << 12) | (d >> 20);
d += a;
- c += (((a ^ b) & d) ^ b) + (uint) Constants.C10 + buff [10];
+ c += (((a ^ b) & d) ^ b) + (uint) K [10] + buff [10];
c = (c << 17) | (c >> 15);
c += d;
- b += (((d ^ a) & c) ^ a) + (uint) Constants.C11 + buff [11];
+ b += (((d ^ a) & c) ^ a) + (uint) K [11] + buff [11];
b = (b << 22) | (b >> 10);
b += c;
- a += (((c ^ d) & b) ^ d) + (uint) Constants.C12 + buff [12];
+ a += (((c ^ d) & b) ^ d) + (uint) K [12] + buff [12];
a = (a << 7) | (a >> 25);
a += b;
- d += (((b ^ c) & a) ^ c) + (uint) Constants.C13 + buff [13];
+ d += (((b ^ c) & a) ^ c) + (uint) K [13] + buff [13];
d = (d << 12) | (d >> 20);
d += a;
- c += (((a ^ b) & d) ^ b) + (uint) Constants.C14 + buff [14];
+ c += (((a ^ b) & d) ^ b) + (uint) K [14] + buff [14];
c = (c << 17) | (c >> 15);
c += d;
- b += (((d ^ a) & c) ^ a) + (uint) Constants.C15 + buff [15];
+ b += (((d ^ a) & c) ^ a) + (uint) K [15] + buff [15];
b = (b << 22) | (b >> 10);
b += c;
// ---- Round 2 --------
- a += (((b ^ c) & d) ^ c) + (uint) Constants.C16 + buff [1];
+ a += (((b ^ c) & d) ^ c) + (uint) K [16] + buff [1];
a = (a << 5) | (a >> 27);
a += b;
- d += (((a ^ b) & c) ^ b) + (uint) Constants.C17 + buff [6];
+ d += (((a ^ b) & c) ^ b) + (uint) K [17] + buff [6];
d = (d << 9) | (d >> 23);
d += a;
- c += (((d ^ a) & b) ^ a) + (uint) Constants.C18 + buff [11];
+ c += (((d ^ a) & b) ^ a) + (uint) K [18] + buff [11];
c = (c << 14) | (c >> 18);
c += d;
- b += (((c ^ d) & a) ^ d) + (uint) Constants.C19 + buff [0];
+ b += (((c ^ d) & a) ^ d) + (uint) K [19] + buff [0];
b = (b << 20) | (b >> 12);
b += c;
- a += (((b ^ c) & d) ^ c) + (uint) Constants.C20 + buff [5];
+ a += (((b ^ c) & d) ^ c) + (uint) K [20] + buff [5];
a = (a << 5) | (a >> 27);
a += b;
- d += (((a ^ b) & c) ^ b) + (uint) Constants.C21 + buff [10];
+ d += (((a ^ b) & c) ^ b) + (uint) K [21] + buff [10];
d = (d << 9) | (d >> 23);
d += a;
- c += (((d ^ a) & b) ^ a) + (uint) Constants.C22 + buff [15];
+ c += (((d ^ a) & b) ^ a) + (uint) K [22] + buff [15];
c = (c << 14) | (c >> 18);
c += d;
- b += (((c ^ d) & a) ^ d) + (uint) Constants.C23 + buff [4];
+ b += (((c ^ d) & a) ^ d) + (uint) K [23] + buff [4];
b = (b << 20) | (b >> 12);
b += c;
- a += (((b ^ c) & d) ^ c) + (uint) Constants.C24 + buff [9];
+ a += (((b ^ c) & d) ^ c) + (uint) K [24] + buff [9];
a = (a << 5) | (a >> 27);
a += b;
- d += (((a ^ b) & c) ^ b) + (uint) Constants.C25 + buff [14];
+ d += (((a ^ b) & c) ^ b) + (uint) K [25] + buff [14];
d = (d << 9) | (d >> 23);
d += a;
- c += (((d ^ a) & b) ^ a) + (uint) Constants.C26 + buff [3];
+ c += (((d ^ a) & b) ^ a) + (uint) K [26] + buff [3];
c = (c << 14) | (c >> 18);
c += d;
- b += (((c ^ d) & a) ^ d) + (uint) Constants.C27 + buff [8];
+ b += (((c ^ d) & a) ^ d) + (uint) K [27] + buff [8];
b = (b << 20) | (b >> 12);
b += c;
- a += (((b ^ c) & d) ^ c) + (uint) Constants.C28 + buff [13];
+ a += (((b ^ c) & d) ^ c) + (uint) K [28] + buff [13];
a = (a << 5) | (a >> 27);
a += b;
- d += (((a ^ b) & c) ^ b) + (uint) Constants.C29 + buff [2];
+ d += (((a ^ b) & c) ^ b) + (uint) K [29] + buff [2];
d = (d << 9) | (d >> 23);
d += a;
- c += (((d ^ a) & b) ^ a) + (uint) Constants.C30 + buff [7];
+ c += (((d ^ a) & b) ^ a) + (uint) K [30] + buff [7];
c = (c << 14) | (c >> 18);
c += d;
- b += (((c ^ d) & a) ^ d) + (uint) Constants.C31 + buff [12];
+ b += (((c ^ d) & a) ^ d) + (uint) K [31] + buff [12];
b = (b << 20) | (b >> 12);
b += c;
// ---- Round 3 --------
- a += (b ^ c ^ d) + (uint) Constants.C32 + buff [5];
+ a += (b ^ c ^ d) + (uint) K [32] + buff [5];
a = (a << 4) | (a >> 28);
a += b;
- d += (a ^ b ^ c) + (uint) Constants.C33 + buff [8];
+ d += (a ^ b ^ c) + (uint) K [33] + buff [8];
d = (d << 11) | (d >> 21);
d += a;
- c += (d ^ a ^ b) + (uint) Constants.C34 + buff [11];
+ c += (d ^ a ^ b) + (uint) K [34] + buff [11];
c = (c << 16) | (c >> 16);
c += d;
- b += (c ^ d ^ a) + (uint) Constants.C35 + buff [14];
+ b += (c ^ d ^ a) + (uint) K [35] + buff [14];
b = (b << 23) | (b >> 9);
b += c;
- a += (b ^ c ^ d) + (uint) Constants.C36 + buff [1];
+ a += (b ^ c ^ d) + (uint) K [36] + buff [1];
a = (a << 4) | (a >> 28);
a += b;
- d += (a ^ b ^ c) + (uint) Constants.C37 + buff [4];
+ d += (a ^ b ^ c) + (uint) K [37] + buff [4];
d = (d << 11) | (d >> 21);
d += a;
- c += (d ^ a ^ b) + (uint) Constants.C38 + buff [7];
+ c += (d ^ a ^ b) + (uint) K [38] + buff [7];
c = (c << 16) | (c >> 16);
c += d;
- b += (c ^ d ^ a) + (uint) Constants.C39 + buff [10];
+ b += (c ^ d ^ a) + (uint) K [39] + buff [10];
b = (b << 23) | (b >> 9);
b += c;
- a += (b ^ c ^ d) + (uint) Constants.C40 + buff [13];
+ a += (b ^ c ^ d) + (uint) K [40] + buff [13];
a = (a << 4) | (a >> 28);
a += b;
- d += (a ^ b ^ c) + (uint) Constants.C41 + buff [0];
+ d += (a ^ b ^ c) + (uint) K [41] + buff [0];
d = (d << 11) | (d >> 21);
d += a;
- c += (d ^ a ^ b) + (uint) Constants.C42 + buff [3];
+ c += (d ^ a ^ b) + (uint) K [42] + buff [3];
c = (c << 16) | (c >> 16);
c += d;
- b += (c ^ d ^ a) + (uint) Constants.C43 + buff [6];
+ b += (c ^ d ^ a) + (uint) K [43] + buff [6];
b = (b << 23) | (b >> 9);
b += c;
- a += (b ^ c ^ d) + (uint) Constants.C44 + buff [9];
+ a += (b ^ c ^ d) + (uint) K [44] + buff [9];
a = (a << 4) | (a >> 28);
a += b;
- d += (a ^ b ^ c) + (uint) Constants.C45 + buff [12];
+ d += (a ^ b ^ c) + (uint) K [45] + buff [12];
d = (d << 11) | (d >> 21);
d += a;
- c += (d ^ a ^ b) + (uint) Constants.C46 + buff [15];
+ c += (d ^ a ^ b) + (uint) K [46] + buff [15];
c = (c << 16) | (c >> 16);
c += d;
- b += (c ^ d ^ a) + (uint) Constants.C47 + buff [2];
+ b += (c ^ d ^ a) + (uint) K [47] + buff [2];
b = (b << 23) | (b >> 9);
b += c;
// ---- Round 4 --------
- a += (((~d) | b) ^ c) + (uint) Constants.C48 + buff [0];
+ a += (((~d) | b) ^ c) + (uint) K [48] + buff [0];
a = (a << 6) | (a >> 26);
a += b;
- d += (((~c) | a) ^ b) + (uint) Constants.C49 + buff [7];
+ d += (((~c) | a) ^ b) + (uint) K [49] + buff [7];
d = (d << 10) | (d >> 22);
d += a;
- c += (((~b) | d) ^ a) + (uint) Constants.C50 + buff [14];
+ c += (((~b) | d) ^ a) + (uint) K [50] + buff [14];
c = (c << 15) | (c >> 17);
c += d;
- b += (((~a) | c) ^ d) + (uint) Constants.C51 + buff [5];
+ b += (((~a) | c) ^ d) + (uint) K [51] + buff [5];
b = (b << 21) | (b >> 11);
b += c;
- a += (((~d) | b) ^ c) + (uint) Constants.C52 + buff [12];
+ a += (((~d) | b) ^ c) + (uint) K [52] + buff [12];
a = (a << 6) | (a >> 26);
a += b;
- d += (((~c) | a) ^ b) + (uint) Constants.C53 + buff [3];
+ d += (((~c) | a) ^ b) + (uint) K [53] + buff [3];
d = (d << 10) | (d >> 22);
d += a;
- c += (((~b) | d) ^ a) + (uint) Constants.C54 + buff [10];
+ c += (((~b) | d) ^ a) + (uint) K [54] + buff [10];
c = (c << 15) | (c >> 17);
c += d;
- b += (((~a) | c) ^ d) + (uint) Constants.C55 + buff [1];
+ b += (((~a) | c) ^ d) + (uint) K [55] + buff [1];
b = (b << 21) | (b >> 11);
b += c;
- a += (((~d) | b) ^ c) + (uint) Constants.C56 + buff [8];
+ a += (((~d) | b) ^ c) + (uint) K [56] + buff [8];
a = (a << 6) | (a >> 26);
a += b;
- d += (((~c) | a) ^ b) + (uint) Constants.C57 + buff [15];
+ d += (((~c) | a) ^ b) + (uint) K [57] + buff [15];
d = (d << 10) | (d >> 22);
d += a;
- c += (((~b) | d) ^ a) + (uint) Constants.C58 + buff [6];
+ c += (((~b) | d) ^ a) + (uint) K [58] + buff [6];
c = (c << 15) | (c >> 17);
c += d;
- b += (((~a) | c) ^ d) + (uint) Constants.C59 + buff [13];
+ b += (((~a) | c) ^ d) + (uint) K [59] + buff [13];
b = (b << 21) | (b >> 11);
b += c;
- a += (((~d) | b) ^ c) + (uint) Constants.C60 + buff [4];
+ a += (((~d) | b) ^ c) + (uint) K [60] + buff [4];
a = (a << 6) | (a >> 26);
a += b;
- d += (((~c) | a) ^ b) + (uint) Constants.C61 + buff [11];
+ d += (((~c) | a) ^ b) + (uint) K [61] + buff [11];
d = (d << 10) | (d >> 22);
d += a;
- c += (((~b) | d) ^ a) + (uint) Constants.C62 + buff [2];
+ c += (((~b) | d) ^ a) + (uint) K [62] + buff [2];
c = (c << 15) | (c >> 17);
c += d;
- b += (((~a) | c) ^ d) + (uint) Constants.C63 + buff [9];
+ b += (((~a) | c) ^ d) + (uint) K [63] + buff [9];
b = (b << 21) | (b >> 11);
b += c;
-
- _H[0] += a;
- _H[1] += b;
- _H[2] += c;
- _H[3] += d;
+ _H [0] += a;
+ _H [1] += b;
+ _H [2] += c;
+ _H [3] += d;
}
- /// <summary>
- /// Pads and then processes the final block.
- /// </summary>
- /// <param name="inputBuffer">Buffer to grab data from.</param>
- /// <param name="inputOffset">Position in buffer in bytes to get data from.</param>
- /// <param name="inputCount">How much data in bytes in the buffer to use.</param>
private void ProcessFinalBlock (byte[] inputBuffer, int inputOffset, int inputCount)
{
- byte[] fooBuffer;
- int paddingSize;
- int i;
- uint size;
-
- paddingSize = (int)(56 - (inputCount + count) % BLOCK_SIZE_BYTES);
+ ulong total = count + (ulong)inputCount;
+ int paddingSize = (int)(56 - total % BLOCK_SIZE_BYTES);
if (paddingSize < 1)
paddingSize += BLOCK_SIZE_BYTES;
+ byte[] fooBuffer = new byte [inputCount+paddingSize+8];
- fooBuffer = new byte[inputCount+paddingSize+8];
-
- for (i=0; i<inputCount; i++) {
+ for (int i=0; i<inputCount; i++) {
fooBuffer[i] = inputBuffer[i+inputOffset];
}
fooBuffer[inputCount] = 0x80;
- for (i=inputCount+1; i<inputCount+paddingSize; i++) {
+ for (int i=inputCount+1; i<inputCount+paddingSize; i++) {
fooBuffer[i] = 0x00;
}
- size = (uint)(count+inputCount);
- size *= 8;
- fooBuffer[inputCount+paddingSize] = (byte)((size) >> 0);
- fooBuffer[inputCount+paddingSize+1] = (byte)((size) >> 8);
- fooBuffer[inputCount+paddingSize+2] = (byte)((size) >> 16);
- fooBuffer[inputCount+paddingSize+3] = (byte)((size) >> 24);
-
- fooBuffer[inputCount+paddingSize+4] = 0x00;
- fooBuffer[inputCount+paddingSize+5] = 0x00;
- fooBuffer[inputCount+paddingSize+6] = 0x00;
- fooBuffer[inputCount+paddingSize+7] = 0x00;
-
- ProcessBlock(fooBuffer, 0);
+ // I deal in bytes. The algorithm deals in bits.
+ ulong size = total << 3;
+ AddLength (size, fooBuffer, inputCount+paddingSize);
+ ProcessBlock (fooBuffer, 0);
if (inputCount+paddingSize+8 == 128) {
ProcessBlock(fooBuffer, 64);
}
}
-
- private enum Constants : uint {
- C0 = 0xd76aa478, C1 = 0xe8c7b756, C2 = 0x242070db,
- C3 = 0xc1bdceee, C4 = 0xf57c0faf, C5 = 0x4787c62a,
- C6 = 0xa8304613, C7 = 0xfd469501, C8 = 0x698098d8,
- C9 = 0x8b44f7af,C10 = 0xffff5bb1,C11 = 0x895cd7be,
- C12 = 0x6b901122,C13 = 0xfd987193,C14 = 0xa679438e,
- C15 = 0x49b40821,C16 = 0xf61e2562,C17 = 0xc040b340,
- C18 = 0x265e5a51,C19 = 0xe9b6c7aa,C20 = 0xd62f105d,
- C21 = 0x02441453,C22 = 0xd8a1e681,C23 = 0xe7d3fbc8,
- C24 = 0x21e1cde6,C25 = 0xc33707d6,C26 = 0xf4d50d87,
- C27 = 0x455a14ed,C28 = 0xa9e3e905,C29 = 0xfcefa3f8,
- C30 = 0x676f02d9,C31 = 0x8d2a4c8a,C32 = 0xfffa3942,
- C33 = 0x8771f681,C34 = 0x6d9d6122,C35 = 0xfde5380c,
- C36 = 0xa4beea44,C37 = 0x4bdecfa9,C38 = 0xf6bb4b60,
- C39 = 0xbebfbc70,C40 = 0x289b7ec6,C41 = 0xeaa127fa,
- C42 = 0xd4ef3085,C43 = 0x04881d05,C44 = 0xd9d4d039,
- C45 = 0xe6db99e5,C46 = 0x1fa27cf8,C47 = 0xc4ac5665,
- C48 = 0xf4292244,C49 = 0x432aff97,C50 = 0xab9423a7,
- C51 = 0xfc93a039,C52 = 0x655b59c3,C53 = 0x8f0ccc92,
- C54 = 0xffeff47d,C55 = 0x85845dd1,C56 = 0x6fa87e4f,
- C57 = 0xfe2ce6e0,C58 = 0xa3014314,C59 = 0x4e0811a1,
- C60 = 0xf7537e82,C61 = 0xbd3af235,C62 = 0x2ad7d2bb,
- C63 = 0xeb86d391
+
+ internal void AddLength (ulong length, byte[] buffer, int position)
+ {
+ buffer [position++] = (byte)(length);
+ buffer [position++] = (byte)(length >> 8);
+ buffer [position++] = (byte)(length >> 16);
+ buffer [position++] = (byte)(length >> 24);
+ buffer [position++] = (byte)(length >> 32);
+ buffer [position++] = (byte)(length >> 40);
+ buffer [position++] = (byte)(length >> 48);
+ buffer [position] = (byte)(length >> 56);
}
+ private readonly static uint[] K = {
+ 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
+ 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+ 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+ 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+ 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
+ 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
+ 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+ 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+ 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
+ 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+ 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
+ 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+ 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
+ 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+ 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+ 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
+ };
}
}