Exemplo n.º 1
0
        private static byte[] GetHash(byte[] input)
        {
            if (input == null)
            {
                throw new ArgumentNullException(nameof(input), "Unable to calculate hash over null input data");
            }
            AbcdStruct abcdValue = new AbcdStruct
            {
                A = 0x67452301,
                B = 0xefcdab89,
                C = 0x98badcfe,
                D = 0x10325476
            };
            int ibStart = 0;

            while (ibStart <= (input.Length - 0x40))
            {
                GetHashBlock(input, ref abcdValue, ibStart);
                ibStart += 0x40;
            }
            return(GetHashFinalBlock(input, ibStart, input.Length - ibStart, abcdValue, input.Length * 8L));
        }
Exemplo n.º 2
0
 internal static void GetHashBlock(byte[] input, ref AbcdStruct abcdValue, int ibStart)
 {
     uint[] numArray = Converter(input, ibStart);
     uint a = abcdValue.A;
     uint b = abcdValue.B;
     uint c = abcdValue.C;
     uint d = abcdValue.D;
     a = R1(a, b, c, d, numArray[0], 7, 0xd76aa478);
     d = R1(d, a, b, c, numArray[1], 12, 0xe8c7b756);
     c = R1(c, d, a, b, numArray[2], 0x11, 0x242070db);
     b = R1(b, c, d, a, numArray[3], 0x16, 0xc1bdceee);
     a = R1(a, b, c, d, numArray[4], 7, 0xf57c0faf);
     d = R1(d, a, b, c, numArray[5], 12, 0x4787c62a);
     c = R1(c, d, a, b, numArray[6], 0x11, 0xa8304613);
     b = R1(b, c, d, a, numArray[7], 0x16, 0xfd469501);
     a = R1(a, b, c, d, numArray[8], 7, 0x698098d8);
     d = R1(d, a, b, c, numArray[9], 12, 0x8b44f7af);
     c = R1(c, d, a, b, numArray[10], 0x11, 0xffff5bb1);
     b = R1(b, c, d, a, numArray[11], 0x16, 0x895cd7be);
     a = R1(a, b, c, d, numArray[12], 7, 0x6b901122);
     d = R1(d, a, b, c, numArray[13], 12, 0xfd987193);
     c = R1(c, d, a, b, numArray[14], 0x11, 0xa679438e);
     b = R1(b, c, d, a, numArray[15], 0x16, 0x49b40821);
     a = R2(a, b, c, d, numArray[1], 5, 0xf61e2562);
     d = R2(d, a, b, c, numArray[6], 9, 0xc040b340);
     c = R2(c, d, a, b, numArray[11], 14, 0x265e5a51);
     b = R2(b, c, d, a, numArray[0], 20, 0xe9b6c7aa);
     a = R2(a, b, c, d, numArray[5], 5, 0xd62f105d);
     d = R2(d, a, b, c, numArray[10], 9, 0x2441453);
     c = R2(c, d, a, b, numArray[15], 14, 0xd8a1e681);
     b = R2(b, c, d, a, numArray[4], 20, 0xe7d3fbc8);
     a = R2(a, b, c, d, numArray[9], 5, 0x21e1cde6);
     d = R2(d, a, b, c, numArray[14], 9, 0xc33707d6);
     c = R2(c, d, a, b, numArray[3], 14, 0xf4d50d87);
     b = R2(b, c, d, a, numArray[8], 20, 0x455a14ed);
     a = R2(a, b, c, d, numArray[13], 5, 0xa9e3e905);
     d = R2(d, a, b, c, numArray[2], 9, 0xfcefa3f8);
     c = R2(c, d, a, b, numArray[7], 14, 0x676f02d9);
     b = R2(b, c, d, a, numArray[12], 20, 0x8d2a4c8a);
     a = R3(a, b, c, d, numArray[5], 4, 0xfffa3942);
     d = R3(d, a, b, c, numArray[8], 11, 0x8771f681);
     c = R3(c, d, a, b, numArray[11], 0x10, 0x6d9d6122);
     b = R3(b, c, d, a, numArray[14], 0x17, 0xfde5380c);
     a = R3(a, b, c, d, numArray[1], 4, 0xa4beea44);
     d = R3(d, a, b, c, numArray[4], 11, 0x4bdecfa9);
     c = R3(c, d, a, b, numArray[7], 0x10, 0xf6bb4b60);
     b = R3(b, c, d, a, numArray[10], 0x17, 0xbebfbc70);
     a = R3(a, b, c, d, numArray[13], 4, 0x289b7ec6);
     d = R3(d, a, b, c, numArray[0], 11, 0xeaa127fa);
     c = R3(c, d, a, b, numArray[3], 0x10, 0xd4ef3085);
     b = R3(b, c, d, a, numArray[6], 0x17, 0x4881d05);
     a = R3(a, b, c, d, numArray[9], 4, 0xd9d4d039);
     d = R3(d, a, b, c, numArray[12], 11, 0xe6db99e5);
     c = R3(c, d, a, b, numArray[15], 0x10, 0x1fa27cf8);
     b = R3(b, c, d, a, numArray[2], 0x17, 0xc4ac5665);
     a = R4(a, b, c, d, numArray[0], 6, 0xf4292244);
     d = R4(d, a, b, c, numArray[7], 10, 0x432aff97);
     c = R4(c, d, a, b, numArray[14], 15, 0xab9423a7);
     b = R4(b, c, d, a, numArray[5], 0x15, 0xfc93a039);
     a = R4(a, b, c, d, numArray[12], 6, 0x655b59c3);
     d = R4(d, a, b, c, numArray[3], 10, 0x8f0ccc92);
     c = R4(c, d, a, b, numArray[10], 15, 0xffeff47d);
     b = R4(b, c, d, a, numArray[1], 0x15, 0x85845dd1);
     a = R4(a, b, c, d, numArray[8], 6, 0x6fa87e4f);
     d = R4(d, a, b, c, numArray[15], 10, 0xfe2ce6e0);
     c = R4(c, d, a, b, numArray[6], 15, 0xa3014314);
     b = R4(b, c, d, a, numArray[13], 0x15, 0x4e0811a1);
     a = R4(a, b, c, d, numArray[4], 6, 0xf7537e82);
     d = R4(d, a, b, c, numArray[11], 10, 0xbd3af235);
     c = R4(c, d, a, b, numArray[2], 15, 0x2ad7d2bb);
     b = R4(b, c, d, a, numArray[9], 0x15, 0xeb86d391);
     abcdValue.A = a + abcdValue.A;
     abcdValue.B = b + abcdValue.B;
     abcdValue.C = c + abcdValue.C;
     abcdValue.D = d + abcdValue.D;
 }
Exemplo n.º 3
0
 internal static byte[] GetHashFinalBlock(byte[] input, int ibStart, int cbSize, AbcdStruct abcd, long len)
 {
     byte[] destinationArray = new byte[0x40];
     byte[] bytes = BitConverter.GetBytes(len);
     Array.Copy(input, ibStart, destinationArray, 0, cbSize);
     destinationArray[cbSize] = 0x80;
     if (cbSize <= 0x38)
     {
         Array.Copy(bytes, 0, destinationArray, 0x38, 8);
         GetHashBlock(destinationArray, ref abcd, 0);
     }
     else
     {
         GetHashBlock(destinationArray, ref abcd, 0);
         destinationArray = new byte[0x40];
         Array.Copy(bytes, 0, destinationArray, 0x38, 8);
         GetHashBlock(destinationArray, ref abcd, 0);
     }
     byte[] buffer3 = new byte[0x10];
     Array.Copy(BitConverter.GetBytes(abcd.A), 0, buffer3, 0, 4);
     Array.Copy(BitConverter.GetBytes(abcd.B), 0, buffer3, 4, 4);
     Array.Copy(BitConverter.GetBytes(abcd.C), 0, buffer3, 8, 4);
     Array.Copy(BitConverter.GetBytes(abcd.D), 0, buffer3, 12, 4);
     return buffer3;
 }
Exemplo n.º 4
0
 private static byte[] GetHash(byte[] input)
 {
     if (input == null)
     {
         throw new ArgumentNullException(nameof(input), "Unable to calculate hash over null input data");
     }
     AbcdStruct abcdValue = new AbcdStruct
     {
         A = 0x67452301,
         B = 0xefcdab89,
         C = 0x98badcfe,
         D = 0x10325476
     };
     int ibStart = 0;
     while (ibStart <= (input.Length - 0x40))
     {
         GetHashBlock(input, ref abcdValue, ibStart);
         ibStart += 0x40;
     }
     return GetHashFinalBlock(input, ibStart, input.Length - ibStart, abcdValue, input.Length * 8L);
 }
Exemplo n.º 5
0
        internal static void GetHashBlock(byte[] input, ref AbcdStruct abcdValue, int ibStart)
        {
            uint[] numArray = Converter(input, ibStart);
            uint   a        = abcdValue.A;
            uint   b        = abcdValue.B;
            uint   c        = abcdValue.C;
            uint   d        = abcdValue.D;

            a           = R1(a, b, c, d, numArray[0], 7, 0xd76aa478);
            d           = R1(d, a, b, c, numArray[1], 12, 0xe8c7b756);
            c           = R1(c, d, a, b, numArray[2], 0x11, 0x242070db);
            b           = R1(b, c, d, a, numArray[3], 0x16, 0xc1bdceee);
            a           = R1(a, b, c, d, numArray[4], 7, 0xf57c0faf);
            d           = R1(d, a, b, c, numArray[5], 12, 0x4787c62a);
            c           = R1(c, d, a, b, numArray[6], 0x11, 0xa8304613);
            b           = R1(b, c, d, a, numArray[7], 0x16, 0xfd469501);
            a           = R1(a, b, c, d, numArray[8], 7, 0x698098d8);
            d           = R1(d, a, b, c, numArray[9], 12, 0x8b44f7af);
            c           = R1(c, d, a, b, numArray[10], 0x11, 0xffff5bb1);
            b           = R1(b, c, d, a, numArray[11], 0x16, 0x895cd7be);
            a           = R1(a, b, c, d, numArray[12], 7, 0x6b901122);
            d           = R1(d, a, b, c, numArray[13], 12, 0xfd987193);
            c           = R1(c, d, a, b, numArray[14], 0x11, 0xa679438e);
            b           = R1(b, c, d, a, numArray[15], 0x16, 0x49b40821);
            a           = R2(a, b, c, d, numArray[1], 5, 0xf61e2562);
            d           = R2(d, a, b, c, numArray[6], 9, 0xc040b340);
            c           = R2(c, d, a, b, numArray[11], 14, 0x265e5a51);
            b           = R2(b, c, d, a, numArray[0], 20, 0xe9b6c7aa);
            a           = R2(a, b, c, d, numArray[5], 5, 0xd62f105d);
            d           = R2(d, a, b, c, numArray[10], 9, 0x2441453);
            c           = R2(c, d, a, b, numArray[15], 14, 0xd8a1e681);
            b           = R2(b, c, d, a, numArray[4], 20, 0xe7d3fbc8);
            a           = R2(a, b, c, d, numArray[9], 5, 0x21e1cde6);
            d           = R2(d, a, b, c, numArray[14], 9, 0xc33707d6);
            c           = R2(c, d, a, b, numArray[3], 14, 0xf4d50d87);
            b           = R2(b, c, d, a, numArray[8], 20, 0x455a14ed);
            a           = R2(a, b, c, d, numArray[13], 5, 0xa9e3e905);
            d           = R2(d, a, b, c, numArray[2], 9, 0xfcefa3f8);
            c           = R2(c, d, a, b, numArray[7], 14, 0x676f02d9);
            b           = R2(b, c, d, a, numArray[12], 20, 0x8d2a4c8a);
            a           = R3(a, b, c, d, numArray[5], 4, 0xfffa3942);
            d           = R3(d, a, b, c, numArray[8], 11, 0x8771f681);
            c           = R3(c, d, a, b, numArray[11], 0x10, 0x6d9d6122);
            b           = R3(b, c, d, a, numArray[14], 0x17, 0xfde5380c);
            a           = R3(a, b, c, d, numArray[1], 4, 0xa4beea44);
            d           = R3(d, a, b, c, numArray[4], 11, 0x4bdecfa9);
            c           = R3(c, d, a, b, numArray[7], 0x10, 0xf6bb4b60);
            b           = R3(b, c, d, a, numArray[10], 0x17, 0xbebfbc70);
            a           = R3(a, b, c, d, numArray[13], 4, 0x289b7ec6);
            d           = R3(d, a, b, c, numArray[0], 11, 0xeaa127fa);
            c           = R3(c, d, a, b, numArray[3], 0x10, 0xd4ef3085);
            b           = R3(b, c, d, a, numArray[6], 0x17, 0x4881d05);
            a           = R3(a, b, c, d, numArray[9], 4, 0xd9d4d039);
            d           = R3(d, a, b, c, numArray[12], 11, 0xe6db99e5);
            c           = R3(c, d, a, b, numArray[15], 0x10, 0x1fa27cf8);
            b           = R3(b, c, d, a, numArray[2], 0x17, 0xc4ac5665);
            a           = R4(a, b, c, d, numArray[0], 6, 0xf4292244);
            d           = R4(d, a, b, c, numArray[7], 10, 0x432aff97);
            c           = R4(c, d, a, b, numArray[14], 15, 0xab9423a7);
            b           = R4(b, c, d, a, numArray[5], 0x15, 0xfc93a039);
            a           = R4(a, b, c, d, numArray[12], 6, 0x655b59c3);
            d           = R4(d, a, b, c, numArray[3], 10, 0x8f0ccc92);
            c           = R4(c, d, a, b, numArray[10], 15, 0xffeff47d);
            b           = R4(b, c, d, a, numArray[1], 0x15, 0x85845dd1);
            a           = R4(a, b, c, d, numArray[8], 6, 0x6fa87e4f);
            d           = R4(d, a, b, c, numArray[15], 10, 0xfe2ce6e0);
            c           = R4(c, d, a, b, numArray[6], 15, 0xa3014314);
            b           = R4(b, c, d, a, numArray[13], 0x15, 0x4e0811a1);
            a           = R4(a, b, c, d, numArray[4], 6, 0xf7537e82);
            d           = R4(d, a, b, c, numArray[11], 10, 0xbd3af235);
            c           = R4(c, d, a, b, numArray[2], 15, 0x2ad7d2bb);
            b           = R4(b, c, d, a, numArray[9], 0x15, 0xeb86d391);
            abcdValue.A = a + abcdValue.A;
            abcdValue.B = b + abcdValue.B;
            abcdValue.C = c + abcdValue.C;
            abcdValue.D = d + abcdValue.D;
        }
Exemplo n.º 6
0
 internal static byte[] GetHashFinalBlock(byte[] input, int ibStart, int cbSize, AbcdStruct abcd, long len)
 {
     byte[] destinationArray = new byte[0x40];
     byte[] bytes            = BitConverter.GetBytes(len);
     Array.Copy(input, ibStart, destinationArray, 0, cbSize);
     destinationArray[cbSize] = 0x80;
     if (cbSize <= 0x38)
     {
         Array.Copy(bytes, 0, destinationArray, 0x38, 8);
         GetHashBlock(destinationArray, ref abcd, 0);
     }
     else
     {
         GetHashBlock(destinationArray, ref abcd, 0);
         destinationArray = new byte[0x40];
         Array.Copy(bytes, 0, destinationArray, 0x38, 8);
         GetHashBlock(destinationArray, ref abcd, 0);
     }
     byte[] buffer3 = new byte[0x10];
     Array.Copy(BitConverter.GetBytes(abcd.A), 0, buffer3, 0, 4);
     Array.Copy(BitConverter.GetBytes(abcd.B), 0, buffer3, 4, 4);
     Array.Copy(BitConverter.GetBytes(abcd.C), 0, buffer3, 8, 4);
     Array.Copy(BitConverter.GetBytes(abcd.D), 0, buffer3, 12, 4);
     return(buffer3);
 }