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- #if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
- #pragma warning disable
- using System;
- namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests
- {
- public sealed class Haraka512Digest
- : HarakaBase
- {
- private readonly byte[] m_buf;
- private int m_bufPos;
- public Haraka512Digest()
- {
- m_buf = new byte[64];
- m_bufPos = 0;
- }
- public override string AlgorithmName => "Haraka-512";
- public override int GetByteLength() => 64;
- public override void Update(byte input)
- {
- if (m_bufPos > 64 - 1)
- throw new ArgumentException("total input cannot be more than 64 bytes");
- m_buf[m_bufPos++] = input;
- }
- public override void BlockUpdate(byte[] input, int inOff, int len)
- {
- if (m_bufPos > 64 - len)
- throw new ArgumentException("total input cannot be more than 64 bytes");
- Array.Copy(input, inOff, m_buf, m_bufPos, len);
- m_bufPos += len;
- }
- #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
- public override void BlockUpdate(ReadOnlySpan<byte> input)
- {
- if (m_bufPos > 64 - input.Length)
- throw new ArgumentException("total input cannot be more than 64 bytes");
- input.CopyTo(m_buf.AsSpan(m_bufPos));
- m_bufPos += input.Length;
- }
- #endif
- public override int DoFinal(byte[] output, int outOff)
- {
- #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
- return DoFinal(output.AsSpan(outOff));
- #else
- if (m_bufPos != 64)
- throw new ArgumentException("input must be exactly 64 bytes");
- if (output.Length - outOff < 32)
- throw new ArgumentException("output too short to receive digest");
- int rv = Haraka512256(m_buf, output, outOff);
- Reset();
- return rv;
- #endif
- }
- #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
- public override int DoFinal(Span<byte> output)
- {
- if (m_bufPos != 64)
- throw new ArgumentException("input must be exactly 64 bytes");
- if (output.Length < 32)
- throw new ArgumentException("output too short to receive digest");
- #if NETCOREAPP3_0_OR_GREATER
- if (Haraka512_X86.IsSupported)
- {
- Haraka512_X86.Hash(m_buf, output);
- Reset();
- return 32;
- }
- #endif
- int rv = Haraka512256(m_buf, output);
- Reset();
- return rv;
- }
- #endif
- public override void Reset()
- {
- m_bufPos = 0;
- Array.Clear(m_buf, 0, 64);
- }
- #if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
- private static int Haraka512256(ReadOnlySpan<byte> msg, Span<byte> output)
- {
- byte[][] s1 = new byte[4][];
- s1[0] = new byte[16];
- s1[1] = new byte[16];
- s1[2] = new byte[16];
- s1[3] = new byte[16];
- byte[][] s2 = new byte[4][];
- s2[0] = new byte[16];
- s2[1] = new byte[16];
- s2[2] = new byte[16];
- s2[3] = new byte[16];
- msg[ ..16].CopyTo(s1[0]);
- msg[16..32].CopyTo(s1[1]);
- msg[32..48].CopyTo(s1[2]);
- msg[48..64].CopyTo(s1[3]);
- s1[0] = AesEnc(s1[0], RC[0]);
- s1[1] = AesEnc(s1[1], RC[1]);
- s1[2] = AesEnc(s1[2], RC[2]);
- s1[3] = AesEnc(s1[3], RC[3]);
- s1[0] = AesEnc(s1[0], RC[4]);
- s1[1] = AesEnc(s1[1], RC[5]);
- s1[2] = AesEnc(s1[2], RC[6]);
- s1[3] = AesEnc(s1[3], RC[7]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[8]);
- s1[1] = AesEnc(s2[1], RC[9]);
- s1[2] = AesEnc(s2[2], RC[10]);
- s1[3] = AesEnc(s2[3], RC[11]);
- s1[0] = AesEnc(s1[0], RC[12]);
- s1[1] = AesEnc(s1[1], RC[13]);
- s1[2] = AesEnc(s1[2], RC[14]);
- s1[3] = AesEnc(s1[3], RC[15]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[16]);
- s1[1] = AesEnc(s2[1], RC[17]);
- s1[2] = AesEnc(s2[2], RC[18]);
- s1[3] = AesEnc(s2[3], RC[19]);
- s1[0] = AesEnc(s1[0], RC[20]);
- s1[1] = AesEnc(s1[1], RC[21]);
- s1[2] = AesEnc(s1[2], RC[22]);
- s1[3] = AesEnc(s1[3], RC[23]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[24]);
- s1[1] = AesEnc(s2[1], RC[25]);
- s1[2] = AesEnc(s2[2], RC[26]);
- s1[3] = AesEnc(s2[3], RC[27]);
- s1[0] = AesEnc(s1[0], RC[28]);
- s1[1] = AesEnc(s1[1], RC[29]);
- s1[2] = AesEnc(s1[2], RC[30]);
- s1[3] = AesEnc(s1[3], RC[31]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[32]);
- s1[1] = AesEnc(s2[1], RC[33]);
- s1[2] = AesEnc(s2[2], RC[34]);
- s1[3] = AesEnc(s2[3], RC[35]);
- s1[0] = AesEnc(s1[0], RC[36]);
- s1[1] = AesEnc(s1[1], RC[37]);
- s1[2] = AesEnc(s1[2], RC[38]);
- s1[3] = AesEnc(s1[3], RC[39]);
- Mix512(s1, s2);
- Xor(s2[0], msg, s1[0]);
- Xor(s2[1], msg[16..], s1[1]);
- Xor(s2[2], msg[32..], s1[2]);
- Xor(s2[3], msg[48..], s1[3]);
- s1[0].AsSpan(8, 8).CopyTo(output);
- s1[1].AsSpan(8, 8).CopyTo(output[8..]);
- s1[2].AsSpan(0, 8).CopyTo(output[16..]);
- s1[3].AsSpan(0, 8).CopyTo(output[24..]);
- return DIGEST_SIZE;
- }
- #else
- private static int Haraka512256(byte[] msg, byte[] output, int outOff)
- {
- byte[][] s1 = new byte[4][];
- s1[0] = new byte[16];
- s1[1] = new byte[16];
- s1[2] = new byte[16];
- s1[3] = new byte[16];
- byte[][] s2 = new byte[4][];
- s2[0] = new byte[16];
- s2[1] = new byte[16];
- s2[2] = new byte[16];
- s2[3] = new byte[16];
- Array.Copy(msg, 0, s1[0], 0, 16);
- Array.Copy(msg, 16, s1[1], 0, 16);
- Array.Copy(msg, 32, s1[2], 0, 16);
- Array.Copy(msg, 48, s1[3], 0, 16);
- s1[0] = AesEnc(s1[0], RC[0]);
- s1[1] = AesEnc(s1[1], RC[1]);
- s1[2] = AesEnc(s1[2], RC[2]);
- s1[3] = AesEnc(s1[3], RC[3]);
- s1[0] = AesEnc(s1[0], RC[4]);
- s1[1] = AesEnc(s1[1], RC[5]);
- s1[2] = AesEnc(s1[2], RC[6]);
- s1[3] = AesEnc(s1[3], RC[7]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[8]);
- s1[1] = AesEnc(s2[1], RC[9]);
- s1[2] = AesEnc(s2[2], RC[10]);
- s1[3] = AesEnc(s2[3], RC[11]);
- s1[0] = AesEnc(s1[0], RC[12]);
- s1[1] = AesEnc(s1[1], RC[13]);
- s1[2] = AesEnc(s1[2], RC[14]);
- s1[3] = AesEnc(s1[3], RC[15]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[16]);
- s1[1] = AesEnc(s2[1], RC[17]);
- s1[2] = AesEnc(s2[2], RC[18]);
- s1[3] = AesEnc(s2[3], RC[19]);
- s1[0] = AesEnc(s1[0], RC[20]);
- s1[1] = AesEnc(s1[1], RC[21]);
- s1[2] = AesEnc(s1[2], RC[22]);
- s1[3] = AesEnc(s1[3], RC[23]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[24]);
- s1[1] = AesEnc(s2[1], RC[25]);
- s1[2] = AesEnc(s2[2], RC[26]);
- s1[3] = AesEnc(s2[3], RC[27]);
- s1[0] = AesEnc(s1[0], RC[28]);
- s1[1] = AesEnc(s1[1], RC[29]);
- s1[2] = AesEnc(s1[2], RC[30]);
- s1[3] = AesEnc(s1[3], RC[31]);
- Mix512(s1, s2);
- s1[0] = AesEnc(s2[0], RC[32]);
- s1[1] = AesEnc(s2[1], RC[33]);
- s1[2] = AesEnc(s2[2], RC[34]);
- s1[3] = AesEnc(s2[3], RC[35]);
- s1[0] = AesEnc(s1[0], RC[36]);
- s1[1] = AesEnc(s1[1], RC[37]);
- s1[2] = AesEnc(s1[2], RC[38]);
- s1[3] = AesEnc(s1[3], RC[39]);
- Mix512(s1, s2);
- s1[0] = Xor(s2[0], msg, 0);
- s1[1] = Xor(s2[1], msg, 16);
- s1[2] = Xor(s2[2], msg, 32);
- s1[3] = Xor(s2[3], msg, 48);
- Array.Copy(s1[0], 8, output, outOff, 8);
- Array.Copy(s1[1], 8, output, outOff + 8, 8);
- Array.Copy(s1[2], 0, output, outOff + 16, 8);
- Array.Copy(s1[3], 0, output, outOff + 24, 8);
- return DIGEST_SIZE;
- }
- #endif
- private static void Mix512(byte[][] s1, byte[][] s2)
- {
- Array.Copy(s1[0], 12, s2[0], 0, 4);
- Array.Copy(s1[2], 12, s2[0], 4, 4);
- Array.Copy(s1[1], 12, s2[0], 8, 4);
- Array.Copy(s1[3], 12, s2[0], 12, 4);
- Array.Copy(s1[2], 0, s2[1], 0, 4);
- Array.Copy(s1[0], 0, s2[1], 4, 4);
- Array.Copy(s1[3], 0, s2[1], 8, 4);
- Array.Copy(s1[1], 0, s2[1], 12, 4);
- Array.Copy(s1[2], 4, s2[2], 0, 4);
- Array.Copy(s1[0], 4, s2[2], 4, 4);
- Array.Copy(s1[3], 4, s2[2], 8, 4);
- Array.Copy(s1[1], 4, s2[2], 12, 4);
- Array.Copy(s1[0], 8, s2[3], 0, 4);
- Array.Copy(s1[2], 8, s2[3], 4, 4);
- Array.Copy(s1[1], 8, s2[3], 8, 4);
- Array.Copy(s1[3], 8, s2[3], 12, 4);
- }
- }
- }
- #pragma warning restore
- #endif
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