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This commit is contained in:
Andrey K. Choi
2025-10-09 09:57:24 +09:00
commit 4d551bd74f
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output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Crypto/Digests/RipeMD256Digest.cs Normal file
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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Crypto.Digests;
public class RipeMD256Digest : GeneralDigest
{
private const int DigestLength = 32;
private int H0;
private int H1;
private int H2;
private int H3;
private int H4;
private int H5;
private int H6;
private int H7;
private int[] X = new int[16];
private int xOff;
public override string AlgorithmName => "RIPEMD256";
public override int GetDigestSize()
{
return 32;
}
public RipeMD256Digest()
{
Reset();
}
public RipeMD256Digest(RipeMD256Digest t)
: base(t)
{
CopyIn(t);
}
private void CopyIn(RipeMD256Digest t)
{
CopyIn((GeneralDigest)t);
H0 = t.H0;
H1 = t.H1;
H2 = t.H2;
H3 = t.H3;
H4 = t.H4;
H5 = t.H5;
H6 = t.H6;
H7 = t.H7;
Array.Copy(t.X, 0, X, 0, t.X.Length);
xOff = t.xOff;
}
internal override void ProcessWord(byte[] input, int inOff)
{
X[xOff++] = (input[inOff] & 0xFF) | ((input[inOff + 1] & 0xFF) << 8) | ((input[inOff + 2] & 0xFF) << 16) | ((input[inOff + 3] & 0xFF) << 24);
if (xOff == 16)
{
ProcessBlock();
}
}
internal override void ProcessLength(long bitLength)
{
if (xOff > 14)
{
ProcessBlock();
}
X[14] = (int)(bitLength & 0xFFFFFFFFu);
X[15] = (int)(bitLength >>> 32);
}
private void UnpackWord(int word, byte[] outBytes, int outOff)
{
outBytes[outOff] = (byte)word;
outBytes[outOff + 1] = (byte)((uint)word >> 8);
outBytes[outOff + 2] = (byte)((uint)word >> 16);
outBytes[outOff + 3] = (byte)((uint)word >> 24);
}
public override int DoFinal(byte[] output, int outOff)
{
Finish();
UnpackWord(H0, output, outOff);
UnpackWord(H1, output, outOff + 4);
UnpackWord(H2, output, outOff + 8);
UnpackWord(H3, output, outOff + 12);
UnpackWord(H4, output, outOff + 16);
UnpackWord(H5, output, outOff + 20);
UnpackWord(H6, output, outOff + 24);
UnpackWord(H7, output, outOff + 28);
Reset();
return 32;
}
public override void Reset()
{
base.Reset();
H0 = 1732584193;
H1 = -271733879;
H2 = -1732584194;
H3 = 271733878;
H4 = 1985229328;
H5 = -19088744;
H6 = -1985229329;
H7 = 19088743;
xOff = 0;
for (int i = 0; i != X.Length; i++)
{
X[i] = 0;
}
}
private int RL(int x, int n)
{
return (x << n) | (x >>> 32 - n);
}
private int F1(int x, int y, int z)
{
return x ^ y ^ z;
}
private int F2(int x, int y, int z)
{
return (x & y) | (~x & z);
}
private int F3(int x, int y, int z)
{
return (x | ~y) ^ z;
}
private int F4(int x, int y, int z)
{
return (x & z) | (y & ~z);
}
private int F1(int a, int b, int c, int d, int x, int s)
{
return RL(a + F1(b, c, d) + x, s);
}
private int F2(int a, int b, int c, int d, int x, int s)
{
return RL(a + F2(b, c, d) + x + 1518500249, s);
}
private int F3(int a, int b, int c, int d, int x, int s)
{
return RL(a + F3(b, c, d) + x + 1859775393, s);
}
private int F4(int a, int b, int c, int d, int x, int s)
{
return RL(a + F4(b, c, d) + x + -1894007588, s);
}
private int FF1(int a, int b, int c, int d, int x, int s)
{
return RL(a + F1(b, c, d) + x, s);
}
private int FF2(int a, int b, int c, int d, int x, int s)
{
return RL(a + F2(b, c, d) + x + 1836072691, s);
}
private int FF3(int a, int b, int c, int d, int x, int s)
{
return RL(a + F3(b, c, d) + x + 1548603684, s);
}
private int FF4(int a, int b, int c, int d, int x, int s)
{
return RL(a + F4(b, c, d) + x + 1352829926, s);
}
internal override void ProcessBlock()
{
int h = H0;
int h2 = H1;
int h3 = H2;
int h4 = H3;
int h5 = H4;
int h6 = H5;
int h7 = H6;
int h8 = H7;
h = F1(h, h2, h3, h4, X[0], 11);
h4 = F1(h4, h, h2, h3, X[1], 14);
h3 = F1(h3, h4, h, h2, X[2], 15);
h2 = F1(h2, h3, h4, h, X[3], 12);
h = F1(h, h2, h3, h4, X[4], 5);
h4 = F1(h4, h, h2, h3, X[5], 8);
h3 = F1(h3, h4, h, h2, X[6], 7);
h2 = F1(h2, h3, h4, h, X[7], 9);
h = F1(h, h2, h3, h4, X[8], 11);
h4 = F1(h4, h, h2, h3, X[9], 13);
h3 = F1(h3, h4, h, h2, X[10], 14);
h2 = F1(h2, h3, h4, h, X[11], 15);
h = F1(h, h2, h3, h4, X[12], 6);
h4 = F1(h4, h, h2, h3, X[13], 7);
h3 = F1(h3, h4, h, h2, X[14], 9);
h2 = F1(h2, h3, h4, h, X[15], 8);
h5 = FF4(h5, h6, h7, h8, X[5], 8);
h8 = FF4(h8, h5, h6, h7, X[14], 9);
h7 = FF4(h7, h8, h5, h6, X[7], 9);
h6 = FF4(h6, h7, h8, h5, X[0], 11);
h5 = FF4(h5, h6, h7, h8, X[9], 13);
h8 = FF4(h8, h5, h6, h7, X[2], 15);
h7 = FF4(h7, h8, h5, h6, X[11], 15);
h6 = FF4(h6, h7, h8, h5, X[4], 5);
h5 = FF4(h5, h6, h7, h8, X[13], 7);
h8 = FF4(h8, h5, h6, h7, X[6], 7);
h7 = FF4(h7, h8, h5, h6, X[15], 8);
h6 = FF4(h6, h7, h8, h5, X[8], 11);
h5 = FF4(h5, h6, h7, h8, X[1], 14);
h8 = FF4(h8, h5, h6, h7, X[10], 14);
h7 = FF4(h7, h8, h5, h6, X[3], 12);
h6 = FF4(h6, h7, h8, h5, X[12], 6);
int num = h;
h = h5;
h5 = num;
h = F2(h, h2, h3, h4, X[7], 7);
h4 = F2(h4, h, h2, h3, X[4], 6);
h3 = F2(h3, h4, h, h2, X[13], 8);
h2 = F2(h2, h3, h4, h, X[1], 13);
h = F2(h, h2, h3, h4, X[10], 11);
h4 = F2(h4, h, h2, h3, X[6], 9);
h3 = F2(h3, h4, h, h2, X[15], 7);
h2 = F2(h2, h3, h4, h, X[3], 15);
h = F2(h, h2, h3, h4, X[12], 7);
h4 = F2(h4, h, h2, h3, X[0], 12);
h3 = F2(h3, h4, h, h2, X[9], 15);
h2 = F2(h2, h3, h4, h, X[5], 9);
h = F2(h, h2, h3, h4, X[2], 11);
h4 = F2(h4, h, h2, h3, X[14], 7);
h3 = F2(h3, h4, h, h2, X[11], 13);
h2 = F2(h2, h3, h4, h, X[8], 12);
h5 = FF3(h5, h6, h7, h8, X[6], 9);
h8 = FF3(h8, h5, h6, h7, X[11], 13);
h7 = FF3(h7, h8, h5, h6, X[3], 15);
h6 = FF3(h6, h7, h8, h5, X[7], 7);
h5 = FF3(h5, h6, h7, h8, X[0], 12);
h8 = FF3(h8, h5, h6, h7, X[13], 8);
h7 = FF3(h7, h8, h5, h6, X[5], 9);
h6 = FF3(h6, h7, h8, h5, X[10], 11);
h5 = FF3(h5, h6, h7, h8, X[14], 7);
h8 = FF3(h8, h5, h6, h7, X[15], 7);
h7 = FF3(h7, h8, h5, h6, X[8], 12);
h6 = FF3(h6, h7, h8, h5, X[12], 7);
h5 = FF3(h5, h6, h7, h8, X[4], 6);
h8 = FF3(h8, h5, h6, h7, X[9], 15);
h7 = FF3(h7, h8, h5, h6, X[1], 13);
h6 = FF3(h6, h7, h8, h5, X[2], 11);
num = h2;
h2 = h6;
h6 = num;
h = F3(h, h2, h3, h4, X[3], 11);
h4 = F3(h4, h, h2, h3, X[10], 13);
h3 = F3(h3, h4, h, h2, X[14], 6);
h2 = F3(h2, h3, h4, h, X[4], 7);
h = F3(h, h2, h3, h4, X[9], 14);
h4 = F3(h4, h, h2, h3, X[15], 9);
h3 = F3(h3, h4, h, h2, X[8], 13);
h2 = F3(h2, h3, h4, h, X[1], 15);
h = F3(h, h2, h3, h4, X[2], 14);
h4 = F3(h4, h, h2, h3, X[7], 8);
h3 = F3(h3, h4, h, h2, X[0], 13);
h2 = F3(h2, h3, h4, h, X[6], 6);
h = F3(h, h2, h3, h4, X[13], 5);
h4 = F3(h4, h, h2, h3, X[11], 12);
h3 = F3(h3, h4, h, h2, X[5], 7);
h2 = F3(h2, h3, h4, h, X[12], 5);
h5 = FF2(h5, h6, h7, h8, X[15], 9);
h8 = FF2(h8, h5, h6, h7, X[5], 7);
h7 = FF2(h7, h8, h5, h6, X[1], 15);
h6 = FF2(h6, h7, h8, h5, X[3], 11);
h5 = FF2(h5, h6, h7, h8, X[7], 8);
h8 = FF2(h8, h5, h6, h7, X[14], 6);
h7 = FF2(h7, h8, h5, h6, X[6], 6);
h6 = FF2(h6, h7, h8, h5, X[9], 14);
h5 = FF2(h5, h6, h7, h8, X[11], 12);
h8 = FF2(h8, h5, h6, h7, X[8], 13);
h7 = FF2(h7, h8, h5, h6, X[12], 5);
h6 = FF2(h6, h7, h8, h5, X[2], 14);
h5 = FF2(h5, h6, h7, h8, X[10], 13);
h8 = FF2(h8, h5, h6, h7, X[0], 13);
h7 = FF2(h7, h8, h5, h6, X[4], 7);
h6 = FF2(h6, h7, h8, h5, X[13], 5);
num = h3;
h3 = h7;
h7 = num;
h = F4(h, h2, h3, h4, X[1], 11);
h4 = F4(h4, h, h2, h3, X[9], 12);
h3 = F4(h3, h4, h, h2, X[11], 14);
h2 = F4(h2, h3, h4, h, X[10], 15);
h = F4(h, h2, h3, h4, X[0], 14);
h4 = F4(h4, h, h2, h3, X[8], 15);
h3 = F4(h3, h4, h, h2, X[12], 9);
h2 = F4(h2, h3, h4, h, X[4], 8);
h = F4(h, h2, h3, h4, X[13], 9);
h4 = F4(h4, h, h2, h3, X[3], 14);
h3 = F4(h3, h4, h, h2, X[7], 5);
h2 = F4(h2, h3, h4, h, X[15], 6);
h = F4(h, h2, h3, h4, X[14], 8);
h4 = F4(h4, h, h2, h3, X[5], 6);
h3 = F4(h3, h4, h, h2, X[6], 5);
h2 = F4(h2, h3, h4, h, X[2], 12);
h5 = FF1(h5, h6, h7, h8, X[8], 15);
h8 = FF1(h8, h5, h6, h7, X[6], 5);
h7 = FF1(h7, h8, h5, h6, X[4], 8);
h6 = FF1(h6, h7, h8, h5, X[1], 11);
h5 = FF1(h5, h6, h7, h8, X[3], 14);
h8 = FF1(h8, h5, h6, h7, X[11], 14);
h7 = FF1(h7, h8, h5, h6, X[15], 6);
h6 = FF1(h6, h7, h8, h5, X[0], 14);
h5 = FF1(h5, h6, h7, h8, X[5], 6);
h8 = FF1(h8, h5, h6, h7, X[12], 9);
h7 = FF1(h7, h8, h5, h6, X[2], 12);
h6 = FF1(h6, h7, h8, h5, X[13], 9);
h5 = FF1(h5, h6, h7, h8, X[9], 12);
h8 = FF1(h8, h5, h6, h7, X[7], 5);
h7 = FF1(h7, h8, h5, h6, X[10], 15);
h6 = FF1(h6, h7, h8, h5, X[14], 8);
num = h4;
h4 = h8;
h8 = num;
H0 += h;
H1 += h2;
H2 += h3;
H3 += h4;
H4 += h5;
H5 += h6;
H6 += h7;
H7 += h8;
xOff = 0;
for (int i = 0; i != X.Length; i++)
{
X[i] = 0;
}
}
public override IMemoable Copy()
{
return new RipeMD256Digest(this);
}
public override void Reset(IMemoable other)
{
RipeMD256Digest t = (RipeMD256Digest)other;
CopyIn(t);
}
}