424 lines
20 KiB
C#
424 lines
20 KiB
C#
using System;
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namespace Org.BouncyCastle.Crypto.Digests
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{
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/**
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* implementation of RipeMD see,
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* http://www.esat.kuleuven.ac.be/~bosselae/ripemd160.html
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*/
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public class RipeMD160Digest
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: GeneralDigest
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{
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private const int DigestLength = 20;
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private int H0, H1, H2, H3, H4; // IV's
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private int[] X = new int[16];
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private int xOff;
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/**
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* Standard constructor
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*/
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public RipeMD160Digest()
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{
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Reset();
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}
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/**
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* Copy constructor. This will copy the state of the provided
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* message digest.
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*/
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public RipeMD160Digest(RipeMD160Digest t) : base(t)
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{
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H0 = t.H0;
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H1 = t.H1;
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H2 = t.H2;
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H3 = t.H3;
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H4 = t.H4;
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Array.Copy(t.X, 0, X, 0, t.X.Length);
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xOff = t.xOff;
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}
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public override string AlgorithmName
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{
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get { return "RIPEMD160"; }
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}
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public override int GetDigestSize()
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{
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return DigestLength;
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}
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internal override void ProcessWord(
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byte[] input,
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int inOff)
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{
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X[xOff++] = (input[inOff] & 0xff) | ((input[inOff + 1] & 0xff) << 8)
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| ((input[inOff + 2] & 0xff) << 16) | ((input[inOff + 3] & 0xff) << 24);
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if (xOff == 16)
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{
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ProcessBlock();
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}
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}
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internal override void ProcessLength(
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long bitLength)
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{
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if (xOff > 14)
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{
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ProcessBlock();
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}
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X[14] = (int)(bitLength & 0xffffffff);
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X[15] = (int)((ulong) bitLength >> 32);
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}
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private void UnpackWord(
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int word,
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byte[] outBytes,
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int outOff)
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{
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outBytes[outOff] = (byte)word;
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outBytes[outOff + 1] = (byte)((uint) word >> 8);
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outBytes[outOff + 2] = (byte)((uint) word >> 16);
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outBytes[outOff + 3] = (byte)((uint) word >> 24);
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}
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public override int DoFinal(
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byte[] output,
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int outOff)
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{
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Finish();
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UnpackWord(H0, output, outOff);
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UnpackWord(H1, output, outOff + 4);
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UnpackWord(H2, output, outOff + 8);
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UnpackWord(H3, output, outOff + 12);
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UnpackWord(H4, output, outOff + 16);
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Reset();
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return DigestLength;
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}
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/**
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* reset the chaining variables to the IV values.
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*/
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public override void Reset()
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{
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base.Reset();
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H0 = unchecked((int) 0x67452301);
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H1 = unchecked((int) 0xefcdab89);
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H2 = unchecked((int) 0x98badcfe);
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H3 = unchecked((int) 0x10325476);
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H4 = unchecked((int) 0xc3d2e1f0);
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xOff = 0;
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for (int i = 0; i != X.Length; i++)
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{
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X[i] = 0;
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}
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}
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/*
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* rotate int x left n bits.
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*/
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private int RL(
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int x,
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int n)
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{
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return (x << n) | (int) ((uint) x >> (32 - n));
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}
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/*
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* f1,f2,f3,f4,f5 are the basic RipeMD160 functions.
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*/
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/*
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* rounds 0-15
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*/
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private int F1(
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int x,
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int y,
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int z)
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{
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return x ^ y ^ z;
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}
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/*
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* rounds 16-31
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*/
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private int F2(
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int x,
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int y,
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int z)
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{
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return (x & y) | (~x & z);
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}
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/*
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* rounds 32-47
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*/
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private int F3(
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int x,
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int y,
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int z)
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{
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return (x | ~y) ^ z;
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}
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/*
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* rounds 48-63
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*/
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private int F4(
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int x,
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int y,
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int z)
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{
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return (x & z) | (y & ~z);
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}
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/*
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* rounds 64-79
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*/
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private int F5(
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int x,
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int y,
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int z)
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{
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return x ^ (y | ~z);
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}
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internal override void ProcessBlock()
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{
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int a, aa;
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int b, bb;
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int c, cc;
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int d, dd;
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int e, ee;
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a = aa = H0;
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b = bb = H1;
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c = cc = H2;
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d = dd = H3;
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e = ee = H4;
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//
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// Rounds 1 - 16
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//
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// left
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a = RL(a + F1(b,c,d) + X[ 0], 11) + e; c = RL(c, 10);
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e = RL(e + F1(a,b,c) + X[ 1], 14) + d; b = RL(b, 10);
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d = RL(d + F1(e,a,b) + X[ 2], 15) + c; a = RL(a, 10);
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c = RL(c + F1(d,e,a) + X[ 3], 12) + b; e = RL(e, 10);
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b = RL(b + F1(c,d,e) + X[ 4], 5) + a; d = RL(d, 10);
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a = RL(a + F1(b,c,d) + X[ 5], 8) + e; c = RL(c, 10);
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e = RL(e + F1(a,b,c) + X[ 6], 7) + d; b = RL(b, 10);
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d = RL(d + F1(e,a,b) + X[ 7], 9) + c; a = RL(a, 10);
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c = RL(c + F1(d,e,a) + X[ 8], 11) + b; e = RL(e, 10);
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b = RL(b + F1(c,d,e) + X[ 9], 13) + a; d = RL(d, 10);
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a = RL(a + F1(b,c,d) + X[10], 14) + e; c = RL(c, 10);
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e = RL(e + F1(a,b,c) + X[11], 15) + d; b = RL(b, 10);
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d = RL(d + F1(e,a,b) + X[12], 6) + c; a = RL(a, 10);
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c = RL(c + F1(d,e,a) + X[13], 7) + b; e = RL(e, 10);
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b = RL(b + F1(c,d,e) + X[14], 9) + a; d = RL(d, 10);
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a = RL(a + F1(b,c,d) + X[15], 8) + e; c = RL(c, 10);
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// right
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aa = RL(aa + F5(bb,cc,dd) + X[ 5] + unchecked((int) 0x50a28be6), 8) + ee; cc = RL(cc, 10);
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ee = RL(ee + F5(aa,bb,cc) + X[14] + unchecked((int) 0x50a28be6), 9) + dd; bb = RL(bb, 10);
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dd = RL(dd + F5(ee,aa,bb) + X[ 7] + unchecked((int) 0x50a28be6), 9) + cc; aa = RL(aa, 10);
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cc = RL(cc + F5(dd,ee,aa) + X[ 0] + unchecked((int) 0x50a28be6), 11) + bb; ee = RL(ee, 10);
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bb = RL(bb + F5(cc,dd,ee) + X[ 9] + unchecked((int) 0x50a28be6), 13) + aa; dd = RL(dd, 10);
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aa = RL(aa + F5(bb,cc,dd) + X[ 2] + unchecked((int) 0x50a28be6), 15) + ee; cc = RL(cc, 10);
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ee = RL(ee + F5(aa,bb,cc) + X[11] + unchecked((int) 0x50a28be6), 15) + dd; bb = RL(bb, 10);
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dd = RL(dd + F5(ee,aa,bb) + X[ 4] + unchecked((int) 0x50a28be6), 5) + cc; aa = RL(aa, 10);
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cc = RL(cc + F5(dd,ee,aa) + X[13] + unchecked((int) 0x50a28be6), 7) + bb; ee = RL(ee, 10);
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bb = RL(bb + F5(cc,dd,ee) + X[ 6] + unchecked((int) 0x50a28be6), 7) + aa; dd = RL(dd, 10);
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aa = RL(aa + F5(bb,cc,dd) + X[15] + unchecked((int) 0x50a28be6), 8) + ee; cc = RL(cc, 10);
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ee = RL(ee + F5(aa,bb,cc) + X[ 8] + unchecked((int) 0x50a28be6), 11) + dd; bb = RL(bb, 10);
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dd = RL(dd + F5(ee,aa,bb) + X[ 1] + unchecked((int) 0x50a28be6), 14) + cc; aa = RL(aa, 10);
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cc = RL(cc + F5(dd,ee,aa) + X[10] + unchecked((int) 0x50a28be6), 14) + bb; ee = RL(ee, 10);
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bb = RL(bb + F5(cc,dd,ee) + X[ 3] + unchecked((int) 0x50a28be6), 12) + aa; dd = RL(dd, 10);
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aa = RL(aa + F5(bb,cc,dd) + X[12] + unchecked((int) 0x50a28be6), 6) + ee; cc = RL(cc, 10);
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//
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// Rounds 16-31
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//
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// left
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e = RL(e + F2(a,b,c) + X[ 7] + unchecked((int) 0x5a827999), 7) + d; b = RL(b, 10);
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d = RL(d + F2(e,a,b) + X[ 4] + unchecked((int) 0x5a827999), 6) + c; a = RL(a, 10);
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c = RL(c + F2(d,e,a) + X[13] + unchecked((int) 0x5a827999), 8) + b; e = RL(e, 10);
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b = RL(b + F2(c,d,e) + X[ 1] + unchecked((int) 0x5a827999), 13) + a; d = RL(d, 10);
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a = RL(a + F2(b,c,d) + X[10] + unchecked((int) 0x5a827999), 11) + e; c = RL(c, 10);
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e = RL(e + F2(a,b,c) + X[ 6] + unchecked((int) 0x5a827999), 9) + d; b = RL(b, 10);
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d = RL(d + F2(e,a,b) + X[15] + unchecked((int) 0x5a827999), 7) + c; a = RL(a, 10);
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c = RL(c + F2(d,e,a) + X[ 3] + unchecked((int) 0x5a827999), 15) + b; e = RL(e, 10);
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b = RL(b + F2(c,d,e) + X[12] + unchecked((int) 0x5a827999), 7) + a; d = RL(d, 10);
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a = RL(a + F2(b,c,d) + X[ 0] + unchecked((int) 0x5a827999), 12) + e; c = RL(c, 10);
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e = RL(e + F2(a,b,c) + X[ 9] + unchecked((int) 0x5a827999), 15) + d; b = RL(b, 10);
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d = RL(d + F2(e,a,b) + X[ 5] + unchecked((int) 0x5a827999), 9) + c; a = RL(a, 10);
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c = RL(c + F2(d,e,a) + X[ 2] + unchecked((int) 0x5a827999), 11) + b; e = RL(e, 10);
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b = RL(b + F2(c,d,e) + X[14] + unchecked((int) 0x5a827999), 7) + a; d = RL(d, 10);
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a = RL(a + F2(b,c,d) + X[11] + unchecked((int) 0x5a827999), 13) + e; c = RL(c, 10);
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e = RL(e + F2(a,b,c) + X[ 8] + unchecked((int) 0x5a827999), 12) + d; b = RL(b, 10);
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// right
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ee = RL(ee + F4(aa,bb,cc) + X[ 6] + unchecked((int) 0x5c4dd124), 9) + dd; bb = RL(bb, 10);
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dd = RL(dd + F4(ee,aa,bb) + X[11] + unchecked((int) 0x5c4dd124), 13) + cc; aa = RL(aa, 10);
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cc = RL(cc + F4(dd,ee,aa) + X[ 3] + unchecked((int) 0x5c4dd124), 15) + bb; ee = RL(ee, 10);
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bb = RL(bb + F4(cc,dd,ee) + X[ 7] + unchecked((int) 0x5c4dd124), 7) + aa; dd = RL(dd, 10);
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aa = RL(aa + F4(bb,cc,dd) + X[ 0] + unchecked((int) 0x5c4dd124), 12) + ee; cc = RL(cc, 10);
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ee = RL(ee + F4(aa,bb,cc) + X[13] + unchecked((int) 0x5c4dd124), 8) + dd; bb = RL(bb, 10);
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dd = RL(dd + F4(ee,aa,bb) + X[ 5] + unchecked((int) 0x5c4dd124), 9) + cc; aa = RL(aa, 10);
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cc = RL(cc + F4(dd,ee,aa) + X[10] + unchecked((int) 0x5c4dd124), 11) + bb; ee = RL(ee, 10);
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bb = RL(bb + F4(cc,dd,ee) + X[14] + unchecked((int) 0x5c4dd124), 7) + aa; dd = RL(dd, 10);
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aa = RL(aa + F4(bb,cc,dd) + X[15] + unchecked((int) 0x5c4dd124), 7) + ee; cc = RL(cc, 10);
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ee = RL(ee + F4(aa,bb,cc) + X[ 8] + unchecked((int) 0x5c4dd124), 12) + dd; bb = RL(bb, 10);
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dd = RL(dd + F4(ee,aa,bb) + X[12] + unchecked((int) 0x5c4dd124), 7) + cc; aa = RL(aa, 10);
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cc = RL(cc + F4(dd,ee,aa) + X[ 4] + unchecked((int) 0x5c4dd124), 6) + bb; ee = RL(ee, 10);
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bb = RL(bb + F4(cc,dd,ee) + X[ 9] + unchecked((int) 0x5c4dd124), 15) + aa; dd = RL(dd, 10);
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aa = RL(aa + F4(bb,cc,dd) + X[ 1] + unchecked((int) 0x5c4dd124), 13) + ee; cc = RL(cc, 10);
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ee = RL(ee + F4(aa,bb,cc) + X[ 2] + unchecked((int) 0x5c4dd124), 11) + dd; bb = RL(bb, 10);
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//
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// Rounds 32-47
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//
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// left
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d = RL(d + F3(e,a,b) + X[ 3] + unchecked((int) 0x6ed9eba1), 11) + c; a = RL(a, 10);
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c = RL(c + F3(d,e,a) + X[10] + unchecked((int) 0x6ed9eba1), 13) + b; e = RL(e, 10);
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b = RL(b + F3(c,d,e) + X[14] + unchecked((int) 0x6ed9eba1), 6) + a; d = RL(d, 10);
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a = RL(a + F3(b,c,d) + X[ 4] + unchecked((int) 0x6ed9eba1), 7) + e; c = RL(c, 10);
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e = RL(e + F3(a,b,c) + X[ 9] + unchecked((int) 0x6ed9eba1), 14) + d; b = RL(b, 10);
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d = RL(d + F3(e,a,b) + X[15] + unchecked((int) 0x6ed9eba1), 9) + c; a = RL(a, 10);
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c = RL(c + F3(d,e,a) + X[ 8] + unchecked((int) 0x6ed9eba1), 13) + b; e = RL(e, 10);
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b = RL(b + F3(c,d,e) + X[ 1] + unchecked((int) 0x6ed9eba1), 15) + a; d = RL(d, 10);
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a = RL(a + F3(b,c,d) + X[ 2] + unchecked((int) 0x6ed9eba1), 14) + e; c = RL(c, 10);
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e = RL(e + F3(a,b,c) + X[ 7] + unchecked((int) 0x6ed9eba1), 8) + d; b = RL(b, 10);
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d = RL(d + F3(e,a,b) + X[ 0] + unchecked((int) 0x6ed9eba1), 13) + c; a = RL(a, 10);
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c = RL(c + F3(d,e,a) + X[ 6] + unchecked((int) 0x6ed9eba1), 6) + b; e = RL(e, 10);
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b = RL(b + F3(c,d,e) + X[13] + unchecked((int) 0x6ed9eba1), 5) + a; d = RL(d, 10);
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a = RL(a + F3(b,c,d) + X[11] + unchecked((int) 0x6ed9eba1), 12) + e; c = RL(c, 10);
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e = RL(e + F3(a,b,c) + X[ 5] + unchecked((int) 0x6ed9eba1), 7) + d; b = RL(b, 10);
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d = RL(d + F3(e,a,b) + X[12] + unchecked((int) 0x6ed9eba1), 5) + c; a = RL(a, 10);
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// right
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dd = RL(dd + F3(ee,aa,bb) + X[15] + unchecked((int) 0x6d703ef3), 9) + cc; aa = RL(aa, 10);
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cc = RL(cc + F3(dd,ee,aa) + X[ 5] + unchecked((int) 0x6d703ef3), 7) + bb; ee = RL(ee, 10);
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bb = RL(bb + F3(cc,dd,ee) + X[ 1] + unchecked((int) 0x6d703ef3), 15) + aa; dd = RL(dd, 10);
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aa = RL(aa + F3(bb,cc,dd) + X[ 3] + unchecked((int) 0x6d703ef3), 11) + ee; cc = RL(cc, 10);
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ee = RL(ee + F3(aa,bb,cc) + X[ 7] + unchecked((int) 0x6d703ef3), 8) + dd; bb = RL(bb, 10);
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dd = RL(dd + F3(ee,aa,bb) + X[14] + unchecked((int) 0x6d703ef3), 6) + cc; aa = RL(aa, 10);
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cc = RL(cc + F3(dd,ee,aa) + X[ 6] + unchecked((int) 0x6d703ef3), 6) + bb; ee = RL(ee, 10);
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bb = RL(bb + F3(cc,dd,ee) + X[ 9] + unchecked((int) 0x6d703ef3), 14) + aa; dd = RL(dd, 10);
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aa = RL(aa + F3(bb,cc,dd) + X[11] + unchecked((int) 0x6d703ef3), 12) + ee; cc = RL(cc, 10);
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ee = RL(ee + F3(aa,bb,cc) + X[ 8] + unchecked((int) 0x6d703ef3), 13) + dd; bb = RL(bb, 10);
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dd = RL(dd + F3(ee,aa,bb) + X[12] + unchecked((int) 0x6d703ef3), 5) + cc; aa = RL(aa, 10);
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cc = RL(cc + F3(dd,ee,aa) + X[ 2] + unchecked((int) 0x6d703ef3), 14) + bb; ee = RL(ee, 10);
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bb = RL(bb + F3(cc,dd,ee) + X[10] + unchecked((int) 0x6d703ef3), 13) + aa; dd = RL(dd, 10);
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aa = RL(aa + F3(bb,cc,dd) + X[ 0] + unchecked((int) 0x6d703ef3), 13) + ee; cc = RL(cc, 10);
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ee = RL(ee + F3(aa,bb,cc) + X[ 4] + unchecked((int) 0x6d703ef3), 7) + dd; bb = RL(bb, 10);
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dd = RL(dd + F3(ee,aa,bb) + X[13] + unchecked((int) 0x6d703ef3), 5) + cc; aa = RL(aa, 10);
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//
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// Rounds 48-63
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//
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// left
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c = RL(c + F4(d,e,a) + X[ 1] + unchecked((int) 0x8f1bbcdc), 11) + b; e = RL(e, 10);
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b = RL(b + F4(c,d,e) + X[ 9] + unchecked((int) 0x8f1bbcdc), 12) + a; d = RL(d, 10);
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a = RL(a + F4(b,c,d) + X[11] + unchecked((int) 0x8f1bbcdc), 14) + e; c = RL(c, 10);
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e = RL(e + F4(a,b,c) + X[10] + unchecked((int) 0x8f1bbcdc), 15) + d; b = RL(b, 10);
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d = RL(d + F4(e,a,b) + X[ 0] + unchecked((int) 0x8f1bbcdc), 14) + c; a = RL(a, 10);
|
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c = RL(c + F4(d,e,a) + X[ 8] + unchecked((int) 0x8f1bbcdc), 15) + b; e = RL(e, 10);
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b = RL(b + F4(c,d,e) + X[12] + unchecked((int) 0x8f1bbcdc), 9) + a; d = RL(d, 10);
|
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a = RL(a + F4(b,c,d) + X[ 4] + unchecked((int) 0x8f1bbcdc), 8) + e; c = RL(c, 10);
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|
e = RL(e + F4(a,b,c) + X[13] + unchecked((int) 0x8f1bbcdc), 9) + d; b = RL(b, 10);
|
|
d = RL(d + F4(e,a,b) + X[ 3] + unchecked((int) 0x8f1bbcdc), 14) + c; a = RL(a, 10);
|
|
c = RL(c + F4(d,e,a) + X[ 7] + unchecked((int) 0x8f1bbcdc), 5) + b; e = RL(e, 10);
|
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b = RL(b + F4(c,d,e) + X[15] + unchecked((int) 0x8f1bbcdc), 6) + a; d = RL(d, 10);
|
|
a = RL(a + F4(b,c,d) + X[14] + unchecked((int) 0x8f1bbcdc), 8) + e; c = RL(c, 10);
|
|
e = RL(e + F4(a,b,c) + X[ 5] + unchecked((int) 0x8f1bbcdc), 6) + d; b = RL(b, 10);
|
|
d = RL(d + F4(e,a,b) + X[ 6] + unchecked((int) 0x8f1bbcdc), 5) + c; a = RL(a, 10);
|
|
c = RL(c + F4(d,e,a) + X[ 2] + unchecked((int) 0x8f1bbcdc), 12) + b; e = RL(e, 10);
|
|
|
|
// right
|
|
cc = RL(cc + F2(dd,ee,aa) + X[ 8] + unchecked((int) 0x7a6d76e9), 15) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F2(cc,dd,ee) + X[ 6] + unchecked((int) 0x7a6d76e9), 5) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F2(bb,cc,dd) + X[ 4] + unchecked((int) 0x7a6d76e9), 8) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F2(aa,bb,cc) + X[ 1] + unchecked((int) 0x7a6d76e9), 11) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F2(ee,aa,bb) + X[ 3] + unchecked((int) 0x7a6d76e9), 14) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F2(dd,ee,aa) + X[11] + unchecked((int) 0x7a6d76e9), 14) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F2(cc,dd,ee) + X[15] + unchecked((int) 0x7a6d76e9), 6) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F2(bb,cc,dd) + X[ 0] + unchecked((int) 0x7a6d76e9), 14) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F2(aa,bb,cc) + X[ 5] + unchecked((int) 0x7a6d76e9), 6) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F2(ee,aa,bb) + X[12] + unchecked((int) 0x7a6d76e9), 9) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F2(dd,ee,aa) + X[ 2] + unchecked((int) 0x7a6d76e9), 12) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F2(cc,dd,ee) + X[13] + unchecked((int) 0x7a6d76e9), 9) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F2(bb,cc,dd) + X[ 9] + unchecked((int) 0x7a6d76e9), 12) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F2(aa,bb,cc) + X[ 7] + unchecked((int) 0x7a6d76e9), 5) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F2(ee,aa,bb) + X[10] + unchecked((int) 0x7a6d76e9), 15) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F2(dd,ee,aa) + X[14] + unchecked((int) 0x7a6d76e9), 8) + bb; ee = RL(ee, 10);
|
|
|
|
//
|
|
// Rounds 64-79
|
|
//
|
|
// left
|
|
b = RL(b + F5(c,d,e) + X[ 4] + unchecked((int) 0xa953fd4e), 9) + a; d = RL(d, 10);
|
|
a = RL(a + F5(b,c,d) + X[ 0] + unchecked((int) 0xa953fd4e), 15) + e; c = RL(c, 10);
|
|
e = RL(e + F5(a,b,c) + X[ 5] + unchecked((int) 0xa953fd4e), 5) + d; b = RL(b, 10);
|
|
d = RL(d + F5(e,a,b) + X[ 9] + unchecked((int) 0xa953fd4e), 11) + c; a = RL(a, 10);
|
|
c = RL(c + F5(d,e,a) + X[ 7] + unchecked((int) 0xa953fd4e), 6) + b; e = RL(e, 10);
|
|
b = RL(b + F5(c,d,e) + X[12] + unchecked((int) 0xa953fd4e), 8) + a; d = RL(d, 10);
|
|
a = RL(a + F5(b,c,d) + X[ 2] + unchecked((int) 0xa953fd4e), 13) + e; c = RL(c, 10);
|
|
e = RL(e + F5(a,b,c) + X[10] + unchecked((int) 0xa953fd4e), 12) + d; b = RL(b, 10);
|
|
d = RL(d + F5(e,a,b) + X[14] + unchecked((int) 0xa953fd4e), 5) + c; a = RL(a, 10);
|
|
c = RL(c + F5(d,e,a) + X[ 1] + unchecked((int) 0xa953fd4e), 12) + b; e = RL(e, 10);
|
|
b = RL(b + F5(c,d,e) + X[ 3] + unchecked((int) 0xa953fd4e), 13) + a; d = RL(d, 10);
|
|
a = RL(a + F5(b,c,d) + X[ 8] + unchecked((int) 0xa953fd4e), 14) + e; c = RL(c, 10);
|
|
e = RL(e + F5(a,b,c) + X[11] + unchecked((int) 0xa953fd4e), 11) + d; b = RL(b, 10);
|
|
d = RL(d + F5(e,a,b) + X[ 6] + unchecked((int) 0xa953fd4e), 8) + c; a = RL(a, 10);
|
|
c = RL(c + F5(d,e,a) + X[15] + unchecked((int) 0xa953fd4e), 5) + b; e = RL(e, 10);
|
|
b = RL(b + F5(c,d,e) + X[13] + unchecked((int) 0xa953fd4e), 6) + a; d = RL(d, 10);
|
|
|
|
// right
|
|
bb = RL(bb + F1(cc,dd,ee) + X[12], 8) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F1(bb,cc,dd) + X[15], 5) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F1(aa,bb,cc) + X[10], 12) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F1(ee,aa,bb) + X[ 4], 9) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F1(dd,ee,aa) + X[ 1], 12) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F1(cc,dd,ee) + X[ 5], 5) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F1(bb,cc,dd) + X[ 8], 14) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F1(aa,bb,cc) + X[ 7], 6) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F1(ee,aa,bb) + X[ 6], 8) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F1(dd,ee,aa) + X[ 2], 13) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F1(cc,dd,ee) + X[13], 6) + aa; dd = RL(dd, 10);
|
|
aa = RL(aa + F1(bb,cc,dd) + X[14], 5) + ee; cc = RL(cc, 10);
|
|
ee = RL(ee + F1(aa,bb,cc) + X[ 0], 15) + dd; bb = RL(bb, 10);
|
|
dd = RL(dd + F1(ee,aa,bb) + X[ 3], 13) + cc; aa = RL(aa, 10);
|
|
cc = RL(cc + F1(dd,ee,aa) + X[ 9], 11) + bb; ee = RL(ee, 10);
|
|
bb = RL(bb + F1(cc,dd,ee) + X[11], 11) + aa; dd = RL(dd, 10);
|
|
|
|
dd += c + H1;
|
|
H1 = H2 + d + ee;
|
|
H2 = H3 + e + aa;
|
|
H3 = H4 + a + bb;
|
|
H4 = H0 + b + cc;
|
|
H0 = dd;
|
|
|
|
//
|
|
// reset the offset and clean out the word buffer.
|
|
//
|
|
xOff = 0;
|
|
for (int i = 0; i != X.Length; i++)
|
|
{
|
|
X[i] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|