/// <summary>
/// Initializes a new instance of the <see cref="Vector8ui"/> using the specified vector and values.
/// </summary>
/// <param name="value">A vector containing the values with which to initialize the first 4 components</param>
/// <param name="v4">Value for the V4 component of the vector.</param>
/// <param name="v5">Value for the V5 component of the vector.</param>
/// <param name="v6">Value for the V6 component of the vector.</param>
/// <param name="v7">Value for the V7 component of the vector.</param>
public Vector8ui(Vector4ui value, uint v4, uint v5, uint v6, uint v7, uint v8, uint v9, uint v10, uint v11)
{
V0 = value.X;
V1 = value.Y;
V2 = value.Z;
V3 = value.W;
V4 = v4;
V5 = v5;
V6 = v6;
V7 = v7;
}
/* Decodes input (unsigned char) into output (UINT4). Assumes len is
* a multiple of 4. */
private static void Decode(Vector4ui[] output,
byte[] input,
uint inputIndex,
uint len)
{
for (uint i = 0, j = 0; j < len; i++, j += 4)
{
output[i] = new Vector4ui(((uint)input[inputIndex + j]) |
(((uint)input[inputIndex + j + 1]) << 8) |
(((uint)input[inputIndex + j + 2]) << 16) |
(((uint)input[inputIndex + j + 3]) << 24));
}
}
/* MD5 basic transformation. Transforms state based on block. */
private static void MD5Transform(Vector4ui[] state,
byte[] block,
uint blockIndex)
{
Vector4ui a = state[0], b = state[1], c = state[2], d = state[3];
Vector4ui[] x = new Vector4ui[16];
Decode(x, block, blockIndex, 64);
/* Round 1 */
FF(ref a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */
FF(ref d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */
FF(ref c, d, a, b, x[2], S13, 0x242070db); /* 3 */
FF(ref b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */
FF(ref a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */
FF(ref d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */
FF(ref c, d, a, b, x[6], S13, 0xa8304613); /* 7 */
FF(ref b, c, d, a, x[7], S14, 0xfd469501); /* 8 */
FF(ref a, b, c, d, x[8], S11, 0x698098d8); /* 9 */
FF(ref d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */
FF(ref c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
FF(ref b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
FF(ref a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
FF(ref d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
FF(ref c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
FF(ref b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
/* Round 2 */
GG(ref a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */
GG(ref d, a, b, c, x[6], S22, 0xc040b340); /* 18 */
GG(ref c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
GG(ref b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */
GG(ref a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */
GG(ref d, a, b, c, x[10], S22, 0x02441453); /* 22 */
GG(ref c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
GG(ref b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */
GG(ref a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */
GG(ref d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
GG(ref c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */
GG(ref b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */
GG(ref a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
GG(ref d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */
GG(ref c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */
GG(ref b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
/* Round 3 */
HH(ref a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */
HH(ref d, a, b, c, x[8], S32, 0x8771f681); /* 34 */
HH(ref c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
HH(ref b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
HH(ref a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */
HH(ref d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */
HH(ref c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */
HH(ref b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
HH(ref a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
HH(ref d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */
HH(ref c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */
HH(ref b, c, d, a, x[6], S34, 0x04881d05); /* 44 */
HH(ref a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */
HH(ref d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
HH(ref c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
HH(ref b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */
/* Round 4 */
II(ref a, b, c, d, x[0], S41, 0xf4292244); /* 49 */
II(ref d, a, b, c, x[7], S42, 0x432aff97); /* 50 */
II(ref c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
II(ref b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */
II(ref a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
II(ref d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */
II(ref c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
II(ref b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */
II(ref a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */
II(ref d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
II(ref c, d, a, b, x[6], S43, 0xa3014314); /* 59 */
II(ref b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
II(ref a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */
II(ref d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
II(ref c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */
II(ref b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
/* Zeroize sensitive information. */
Array.Clear(x, 0, x.Length);
}
private static void II(ref Vector4ui a, Vector4ui b, Vector4ui c, Vector4ui d, Vector4ui x, int s, uint ac)
{
(a) += I((b), (c), (d)) + (x) + new Vector4ui(ac);
(a) = ROTATE_LEFT((a), (s));
(a) += (b);
}
/* ROTATE_LEFT rotates x left n bits. */
private static Vector4ui ROTATE_LEFT(Vector4ui x, int n)
{
return(new Vector4ui(((x[0]) << (n)) | ((x[0]) >> (32 - (n)))));
}
private static Vector4ui I(Vector4ui x, Vector4ui y, Vector4ui z)
{
return((y) ^ ((x) | (new Vector4ui(~z.X))));
}
private static Vector4ui H(Vector4ui x, Vector4ui y, Vector4ui z)
{
return((x) ^ (y) ^ (z));
}
private static Vector4ui G(Vector4ui x, Vector4ui y, Vector4ui z)
{
return(y ^ (z & (x ^ y)));
}
/* F, G, H and I are basic MD5 functions. */
private static Vector4ui F(Vector4ui x, Vector4ui y, Vector4ui z)
{
return(z ^ (x & (y ^ z)));
}
/// <summary>Read an array of <c>Vector4ui</c> values.</summary>
public static Vector4ui[] ReadArrayVector4ui(this BinaryReader reader, int count)
{
Vector4ui[] array = new Vector4ui[count]; reader.ReadArray(array, 0, count); return array;
}
/// <summary>Read a <see cref="Vector4ui"/>.</summary>
public static void ReadVector4ui(this BinaryReader reader , out Vector4ui result)
{
result.X = reader.ReadUInt32();
result.Y = reader.ReadUInt32();
result.Z = reader.ReadUInt32();
result.W = reader.ReadUInt32();
return;
}
static unsafe void FromUInt32(int first, int count, IList<Vector4ui> data)
{
for(int index = 0; index < count; index++)data[first + index] = new Vector4ui((uint)( *((System.UInt32*)list.ToPointer() + (index + 0) * 4 * 4) ), (uint)( *((System.UInt32*)list.ToPointer() + (index + 1) * 4 * 4) ), (uint)( *((System.UInt32*)list.ToPointer() + (index + 2) * 4 * 4) ), (uint)( *((System.UInt32*)list.ToPointer() + (index + 3) * 4 * 4) ));
}
static unsafe void FromBoolean(int first, int count, IList<Vector4ui> data)
{
for(int index = 0; index < count; index++)data[first + index] = new Vector4ui((uint)( Marshal.ReadInt32(list, (index + 0) * 4 * 4 * 4) != 0 ? 1 : 0 ), (uint)( Marshal.ReadInt32(list, (index + 1) * 4 * 4 * 4) != 0 ? 1 : 0 ), (uint)( Marshal.ReadInt32(list, (index + 2) * 4 * 4 * 4) != 0 ? 1 : 0 ), (uint)( Marshal.ReadInt32(list, (index + 3) * 4 * 4 * 4) != 0 ? 1 : 0 ));
}
public void Set(ref Vector4ui value)
{
unsafe { fixed(Vector4ui* pointer = &value) Set4(1, (uint*)pointer); }
}
public void Set(Vector4ui value)
{
unsafe { Set4(1, (uint*)&value); }
}
