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SuperVPN/output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Crypto/Digests/RipeMD128Digest.cs
Andrey K. Choi 4d551bd74f init commit
2025-10-09 09:57:24 +09:00

329 lines
8.5 KiB
C#
Raw Blame History

using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Crypto.Digests;
public class RipeMD128Digest : GeneralDigest
{
private const int DigestLength = 16;
private int H0;
private int H1;
private int H2;
private int H3;
private int[] X = new int[16];
private int xOff;
public override string AlgorithmName => "RIPEMD128";
public RipeMD128Digest()
{
Reset();
}
public RipeMD128Digest(RipeMD128Digest t)
: base(t)
{
CopyIn(t);
}
private void CopyIn(RipeMD128Digest t)
{
CopyIn((GeneralDigest)t);
H0 = t.H0;
H1 = t.H1;
H2 = t.H2;
H3 = t.H3;
Array.Copy(t.X, 0, X, 0, t.X.Length);
xOff = t.xOff;
}
public override int GetDigestSize()
{
return 16;
}
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);
Reset();
return 16;
}
public override void Reset()
{
base.Reset();
H0 = 1732584193;
H1 = -271733879;
H2 = -1732584194;
H3 = 271733878;
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;
int a = (h = H0);
int h2;
int num = (h2 = H1);
int h3;
int num2 = (h3 = H2);
int h4;
int num3 = (h4 = H3);
a = F1(a, num, num2, num3, X[0], 11);
num3 = F1(num3, a, num, num2, X[1], 14);
num2 = F1(num2, num3, a, num, X[2], 15);
num = F1(num, num2, num3, a, X[3], 12);
a = F1(a, num, num2, num3, X[4], 5);
num3 = F1(num3, a, num, num2, X[5], 8);
num2 = F1(num2, num3, a, num, X[6], 7);
num = F1(num, num2, num3, a, X[7], 9);
a = F1(a, num, num2, num3, X[8], 11);
num3 = F1(num3, a, num, num2, X[9], 13);
num2 = F1(num2, num3, a, num, X[10], 14);
num = F1(num, num2, num3, a, X[11], 15);
a = F1(a, num, num2, num3, X[12], 6);
num3 = F1(num3, a, num, num2, X[13], 7);
num2 = F1(num2, num3, a, num, X[14], 9);
num = F1(num, num2, num3, a, X[15], 8);
a = F2(a, num, num2, num3, X[7], 7);
num3 = F2(num3, a, num, num2, X[4], 6);
num2 = F2(num2, num3, a, num, X[13], 8);
num = F2(num, num2, num3, a, X[1], 13);
a = F2(a, num, num2, num3, X[10], 11);
num3 = F2(num3, a, num, num2, X[6], 9);
num2 = F2(num2, num3, a, num, X[15], 7);
num = F2(num, num2, num3, a, X[3], 15);
a = F2(a, num, num2, num3, X[12], 7);
num3 = F2(num3, a, num, num2, X[0], 12);
num2 = F2(num2, num3, a, num, X[9], 15);
num = F2(num, num2, num3, a, X[5], 9);
a = F2(a, num, num2, num3, X[2], 11);
num3 = F2(num3, a, num, num2, X[14], 7);
num2 = F2(num2, num3, a, num, X[11], 13);
num = F2(num, num2, num3, a, X[8], 12);
a = F3(a, num, num2, num3, X[3], 11);
num3 = F3(num3, a, num, num2, X[10], 13);
num2 = F3(num2, num3, a, num, X[14], 6);
num = F3(num, num2, num3, a, X[4], 7);
a = F3(a, num, num2, num3, X[9], 14);
num3 = F3(num3, a, num, num2, X[15], 9);
num2 = F3(num2, num3, a, num, X[8], 13);
num = F3(num, num2, num3, a, X[1], 15);
a = F3(a, num, num2, num3, X[2], 14);
num3 = F3(num3, a, num, num2, X[7], 8);
num2 = F3(num2, num3, a, num, X[0], 13);
num = F3(num, num2, num3, a, X[6], 6);
a = F3(a, num, num2, num3, X[13], 5);
num3 = F3(num3, a, num, num2, X[11], 12);
num2 = F3(num2, num3, a, num, X[5], 7);
num = F3(num, num2, num3, a, X[12], 5);
a = F4(a, num, num2, num3, X[1], 11);
num3 = F4(num3, a, num, num2, X[9], 12);
num2 = F4(num2, num3, a, num, X[11], 14);
num = F4(num, num2, num3, a, X[10], 15);
a = F4(a, num, num2, num3, X[0], 14);
num3 = F4(num3, a, num, num2, X[8], 15);
num2 = F4(num2, num3, a, num, X[12], 9);
num = F4(num, num2, num3, a, X[4], 8);
a = F4(a, num, num2, num3, X[13], 9);
num3 = F4(num3, a, num, num2, X[3], 14);
num2 = F4(num2, num3, a, num, X[7], 5);
num = F4(num, num2, num3, a, X[15], 6);
a = F4(a, num, num2, num3, X[14], 8);
num3 = F4(num3, a, num, num2, X[5], 6);
num2 = F4(num2, num3, a, num, X[6], 5);
num = F4(num, num2, num3, a, X[2], 12);
h = FF4(h, h2, h3, h4, X[5], 8);
h4 = FF4(h4, h, h2, h3, X[14], 9);
h3 = FF4(h3, h4, h, h2, X[7], 9);
h2 = FF4(h2, h3, h4, h, X[0], 11);
h = FF4(h, h2, h3, h4, X[9], 13);
h4 = FF4(h4, h, h2, h3, X[2], 15);
h3 = FF4(h3, h4, h, h2, X[11], 15);
h2 = FF4(h2, h3, h4, h, X[4], 5);
h = FF4(h, h2, h3, h4, X[13], 7);
h4 = FF4(h4, h, h2, h3, X[6], 7);
h3 = FF4(h3, h4, h, h2, X[15], 8);
h2 = FF4(h2, h3, h4, h, X[8], 11);
h = FF4(h, h2, h3, h4, X[1], 14);
h4 = FF4(h4, h, h2, h3, X[10], 14);
h3 = FF4(h3, h4, h, h2, X[3], 12);
h2 = FF4(h2, h3, h4, h, X[12], 6);
h = FF3(h, h2, h3, h4, X[6], 9);
h4 = FF3(h4, h, h2, h3, X[11], 13);
h3 = FF3(h3, h4, h, h2, X[3], 15);
h2 = FF3(h2, h3, h4, h, X[7], 7);
h = FF3(h, h2, h3, h4, X[0], 12);
h4 = FF3(h4, h, h2, h3, X[13], 8);
h3 = FF3(h3, h4, h, h2, X[5], 9);
h2 = FF3(h2, h3, h4, h, X[10], 11);
h = FF3(h, h2, h3, h4, X[14], 7);
h4 = FF3(h4, h, h2, h3, X[15], 7);
h3 = FF3(h3, h4, h, h2, X[8], 12);
h2 = FF3(h2, h3, h4, h, X[12], 7);
h = FF3(h, h2, h3, h4, X[4], 6);
h4 = FF3(h4, h, h2, h3, X[9], 15);
h3 = FF3(h3, h4, h, h2, X[1], 13);
h2 = FF3(h2, h3, h4, h, X[2], 11);
h = FF2(h, h2, h3, h4, X[15], 9);
h4 = FF2(h4, h, h2, h3, X[5], 7);
h3 = FF2(h3, h4, h, h2, X[1], 15);
h2 = FF2(h2, h3, h4, h, X[3], 11);
h = FF2(h, h2, h3, h4, X[7], 8);
h4 = FF2(h4, h, h2, h3, X[14], 6);
h3 = FF2(h3, h4, h, h2, X[6], 6);
h2 = FF2(h2, h3, h4, h, X[9], 14);
h = FF2(h, h2, h3, h4, X[11], 12);
h4 = FF2(h4, h, h2, h3, X[8], 13);
h3 = FF2(h3, h4, h, h2, X[12], 5);
h2 = FF2(h2, h3, h4, h, X[2], 14);
h = FF2(h, h2, h3, h4, X[10], 13);
h4 = FF2(h4, h, h2, h3, X[0], 13);
h3 = FF2(h3, h4, h, h2, X[4], 7);
h2 = FF2(h2, h3, h4, h, X[13], 5);
h = FF1(h, h2, h3, h4, X[8], 15);
h4 = FF1(h4, h, h2, h3, X[6], 5);
h3 = FF1(h3, h4, h, h2, X[4], 8);
h2 = FF1(h2, h3, h4, h, X[1], 11);
h = FF1(h, h2, h3, h4, X[3], 14);
h4 = FF1(h4, h, h2, h3, X[11], 14);
h3 = FF1(h3, h4, h, h2, X[15], 6);
h2 = FF1(h2, h3, h4, h, X[0], 14);
h = FF1(h, h2, h3, h4, X[5], 6);
h4 = FF1(h4, h, h2, h3, X[12], 9);
h3 = FF1(h3, h4, h, h2, X[2], 12);
h2 = FF1(h2, h3, h4, h, X[13], 9);
h = FF1(h, h2, h3, h4, X[9], 12);
h4 = FF1(h4, h, h2, h3, X[7], 5);
h3 = FF1(h3, h4, h, h2, X[10], 15);
h2 = FF1(h2, h3, h4, h, X[14], 8);
h4 += num2 + H1;
H1 = H2 + num3 + h;
H2 = H3 + a + h2;
H3 = H0 + num + h3;
H0 = h4;
xOff = 0;
for (int i = 0; i != X.Length; i++)
{
X[i] = 0;
}
}
public override IMemoable Copy()
{
return new RipeMD128Digest(this);
}
public override void Reset(IMemoable other)
{
RipeMD128Digest t = (RipeMD128Digest)other;
CopyIn(t);
}
}
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