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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows.Forms; namespace Md5_Calculator { class Md5BaseReport { private static int blockCount = 0; uint WordA = 0x67452301, WordB = 0xefcdab89, WordC = 0x98badcfe, WordD = 0x10325476; uint[] Table = new uint[64 ]; uint F(uint x, uint y, uint z) { return ((x & y) | ((~x) & z));} uint G(uint x, uint y, uint z) { return (x & z) | ((~z) & y); } uint H(uint x, uint y, uint z) { return x ^ y ^ z; } uint I(uint x, uint y, uint z) { return (y ^ ((~z) | x)); } uint RotateLeft(uint x, int s) { return (x << s) | (x >> (32 - s)); } System.IO.StreamWriter Writer; uint Round1(uint a, uint b, uint c, uint d, byte k, byte s, byte i) { Writer.Write("FF: "); Writer.WriteLine("\ta = " + a.ToString("X") + " b = " + b.ToString("X") + " c = " + c.ToString("X") + " d = " + d.ToString("X") + " x = " + X[k].ToString("X") + " s = " + s.ToString("") + " i = " + Table[i - 1].ToString("X")); Writer.WriteLine("\tF (b,c,d) = " + F(b, c, d).ToString("X")); Writer.WriteLine("\ta + F + xk + ti = " + (F(b, c, d) + a + X[k] + Table[i - 1]).ToString("X")); Writer.WriteLine("\tb + (... <<< 7 ) = " + (b + RotateLeft((a + F(b, c, d) + X[k] + Table[i - 1]), s)).ToString("X") + "\n"); return b + RotateLeft((a + F(b, c, d) + X[k] + Table[i - 1]), s); } uint Round2(uint a, uint b, uint c, uint d, byte k, byte s, byte i) { Writer.Write("GG: "); Writer.WriteLine("\ta = " + a.ToString("X") + " b = " + b.ToString("X") + " c = " + c.ToString("X") + " d = " + d.ToString("X") + " x = " + X[k].ToString("X") + " s = " + s.ToString("") + " i = " + Table[i - 1].ToString("X")); Writer.WriteLine("\tG (b,c,d) = " + G(b, c, d).ToString("X")); Writer.WriteLine("\ta + G + xk + ti = " + (G(b, c, d) + a + X[k] + Table[i - 1]).ToString("X")); Writer.WriteLine("\tb + (... <<< 7 ) = " + (b + RotateLeft((a + G(b, c, d) + X[k] + Table[i - 1]), s)).ToString("X") + "\n"); return b + RotateLeft((a + G(b, c, d) + X[k] + Table[i - 1]), s); } uint Round3(uint a, uint b, uint c, uint d, byte k, byte s, byte i) { Writer.Write("HH: "); Writer.WriteLine("\ta = " + a.ToString("X") + " b = " + b.ToString("X") + " c = " + c.ToString("X") + " d = " + d.ToString("X") + " x = " + X[k].ToString("X") + " s = " + s.ToString("") + " i = " + Table[i - 1].ToString("X")); Writer.WriteLine("\tH (b,c,d) = " + H(b, c, d).ToString("X")); Writer.WriteLine("\ta + H + xk + ti = " + (H(b, c, d) + a + X[k] + Table[i - 1]).ToString("X")); Writer.WriteLine("\tb + (... <<< 7 ) = " + (b + RotateLeft((a + H(b, c, d) + X[k] + Table[i - 1]), s)).ToString("X") + "\n"); return b + RotateLeft((a + H(b, c, d) + X[k] + Table[i - 1]), s); } uint Round4(uint a, uint b, uint c, uint d, byte k, byte s, byte i) { Writer.Write("II: "); Writer.WriteLine("\ta = " + a.ToString("X") + " b = " + b.ToString("X") + " c = " + c.ToString("X") + " d = " + d.ToString("X") + " x = " + X[k].ToString("X") + " s = " + s.ToString("") + " i = " + Table[i - 1].ToString("X")); Writer.WriteLine("\tI (b,c,d) = " + I(b, c, d).ToString("X")); Writer.WriteLine("\ta + I + xk + ti = " + (I(b, c, d) + a + X[k] + Table[i - 1]).ToString("X")); Writer.WriteLine("\tb + (... <<< 7 ) = " + (b + RotateLeft((a + I(b, c, d) + X[k] + Table[i - 1]), s)).ToString("X") + "\n"); return b + RotateLeft((a + I(b, c, d) + X[k] + Table[i - 1]), s); } public void ProcessBlock(uint[] block) { Array.Copy(block, X, (long) 16); Writer = new System.IO. StreamWriter("Report File.txt", true); Writer.WriteLine("--- Blocco " + blockCount.ToString()); // Report del blocck in processo; int k = 0; foreach (uint val in X) { Writer.WriteLine("X[" + k.ToString() + "] = " + X[k].ToString("X8")); k++; } uint A = WordA; uint B = WordB; uint C = WordC; uint D = WordD; #region Round1 A = Round1(A, B, C, D, 0, 7, 1); D = Round1(D, A, B, C, 1, 12, 2); C = Round1(C, D, A, B, 2, 17, 3); B = Round1(B, C, D, A, 3, 22, 4); A = Round1(A, B, C, D, 4, 7, 5); D = Round1(D, A, B, C, 5, 12, 6); C = Round1(C, D, A, B, 6, 17, 7); B = Round1(B, C, D, A, 7, 22, 8); A = Round1(A, B, C, D, 8, 7, 9); D = Round1(D, A, B, C, 9, 12, 10); C = Round1(C, D, A, B, 10, 17, 11); B = Round1(B, C, D, A, 11, 22, 12); A = Round1(A, B, C, D, 12, 7, 13); D = Round1(D, A, B, C, 13, 12, 14); C = Round1(C, D, A, B, 14, 17, 15); B = Round1(B, C, D, A, 15, 22, 16); #endregion #region Round2 A = Round2(A, B, C, D, 1, 5, 17); D = Round2(D, A, B, C, 6, 9, 18); C = Round2(C, D, A, B, 11, 14, 19); B = Round2(B, C, D, A, 0, 20, 20); A = Round2(A, B, C, D, 5, 5, 21); D = Round2(D, A, B, C, 10, 9, 22); C = Round2(C, D, A, B, 15, 14, 23); B = Round2(B, C, D, A, 4, 20, 24); A = Round2(A, B, C, D, 9, 5, 25); D = Round2(D, A, B, C, 14, 9, 26); C = Round2(C, D, A, B, 3, 14, 27); B = Round2(B, C, D, A, 8, 20, 28); A = Round2(A, B, C, D, 13, 5, 29); D = Round2(D, A, B, C, 2, 9, 30); C = Round2(C, D, A, B, 7, 14, 31); B = Round2(B, C, D, A, 12, 20, 32); #endregion #region Round3 A = Round3(A, B, C, D, 5, 4, 33); D = Round3(D, A, B, C, 8, 11, 34); C = Round3(C, D, A, B, 11, 16, 35); B = Round3(B, C, D, A, 14, 23, 36); A = Round3(A, B, C, D, 1, 4, 37); D = Round3(D, A, B, C, 4, 11, 38); C = Round3(C, D, A, B, 7, 16, 39); B = Round3(B, C, D, A, 10, 23, 40); A = Round3(A, B, C, D, 13, 4, 41); D = Round3(D, A, B, C, 0, 11, 42); C = Round3(C, D, A, B, 3, 16, 43); B = Round3(B, C, D, A, 6, 23, 44); A = Round3(A, B, C, D, 9, 4, 45); D = Round3(D, A, B, C, 12, 11, 46); C = Round3(C, D, A, B, 15, 16, 47); B = Round3(B, C, D, A, 2, 23, 48); #endregion #region Round4 A = Round4(A, B, C, D, 0, 6, 49); D = Round4(D, A, B, C, 7, 10, 50); C = Round4(C, D, A, B, 14, 15, 51); B = Round4(B, C, D, A, 5, 21, 52); A = Round4(A, B, C, D, 12, 6, 53); D = Round4(D, A, B, C, 3, 10, 54); C = Round4(C, D, A, B, 10, 15, 55); B = Round4(B, C, D, A, 1, 21, 56); A = Round4(A, B, C, D, 8, 6, 57); D = Round4(D, A, B, C, 15, 10, 58); C = Round4(C, D, A, B, 6, 15, 59); B = Round4(B, C, D, A, 13, 21, 60); A = Round4(A, B, C, D, 4, 6, 61); D = Round4(D, A, B, C, 11, 10, 62); C = Round4(C, D, A, B, 2, 15, 63); B = Round4(B, C, D, A, 9, 21, 64); #endregion WordA += A; WordB += B; WordC += C; WordD += D; blockCount++; Writer.Close(); } public Md5BaseReport() { // Costruzione Tabella for (int i = 1; i <= 64; i++) Table[i - 1] = (uint)(0x100000000 * (double)Math.Abs(Math.Sin((double)i))); } public String returnDigest() { //Process String Rappresentation string wA = null, wB = null, wC = null, wD = null; for (int j = 0; j < 32; j += 8) { wA += ((byte)(WordA >> j)).ToString("X2"); wB += ((byte)(WordB >> j)).ToString("X2"); wC += ((byte)(WordC >> j)).ToString("X2"); wD += ((byte)(WordD >> j)).ToString("X2"); } return wA + wB + wC + wD; } } }
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