void ProcessLeafs() { FileStream ThreadFilePtr = new FileStream(Filename, FileMode.Open, FileAccess.Read); FileBlock ThreadFileBlock = FileParts[Convert.ToInt16(Thread.CurrentThread.Name)]; Tiger TG = new Tiger(); byte[] DataBlock; byte[] Data = new byte[LeafSize + 1]; int LeafIndex, BlockLeafs; int i; ThreadFilePtr.Position = ThreadFileBlock.Start; while (ThreadFilePtr.Position < ThreadFileBlock.End) { LeafIndex = (int)ThreadFilePtr.Position / 1024; if (ThreadFileBlock.End - ThreadFilePtr.Position < DataBlockSize) { DataBlock = new byte[ThreadFileBlock.End - ThreadFilePtr.Position]; } else { DataBlock = new byte[DataBlockSize]; } ThreadFilePtr.Read(DataBlock, 0, DataBlock.Length); //read block BlockLeafs = DataBlock.Length / 1024; for (i = 0; i < BlockLeafs; i++) { Buffer.BlockCopy(DataBlock, i * LeafSize, Data, 1, LeafSize); TG.Initialize(); TTH[0][LeafIndex++] = TG.ComputeHash(Data); } if (i * LeafSize < DataBlock.Length) { Data = new byte[DataBlock.Length - BlockLeafs * LeafSize + 1]; Data[0] = LeafHash; Buffer.BlockCopy(DataBlock, BlockLeafs * LeafSize, Data, 1, (Data.Length - 1)); TG.Initialize(); TTH[0][LeafIndex++] = TG.ComputeHash(Data); Data = new byte[LeafSize + 1]; Data[0] = LeafHash; } } DataBlock = null; Data = null; }
private byte[] LeafHash(byte[] Raw_Data) //leaf hash. { byte[] Data = new byte[Raw_Data.Length + 1]; Data[0] = 0x00; //leaf hash mark. Raw_Data.CopyTo(Data, 1); //gets tiger hash value for leafs blocks. Tiger TG = new Tiger(); TG.Initialize(); return(TG.ComputeHash(Data)); }
void ProcessInternalLeaf(int Level, int Index, byte[] LeafA, byte[] LeafB) { Tiger TG = new Tiger(); byte[] Data = new byte[LeafA.Length + LeafB.Length + 1]; Data[0] = InternalHash; Buffer.BlockCopy(LeafA, 0, Data, 1, LeafA.Length); Buffer.BlockCopy(LeafB, 0, Data, LeafA.Length + 1, LeafA.Length); TG.Initialize(); TTH[Level][Index] = TG.ComputeHash(Data); }
private byte[] InternalHash(byte[] LeafA, byte[] LeafB) //internal hash. { byte[] Data = new byte[LeafA.Length + LeafB.Length + 1]; Data[0] = 0x01; //internal hash mark. //combines two leafs. LeafA.CopyTo(Data, 1); LeafB.CopyTo(Data, LeafA.Length + 1); //gets tiger hash value for combined leaf hash. Tiger TG = new Tiger(); TG.Initialize(); return(TG.ComputeHash(Data)); }
public static bool SelfTest() { ASCIIEncoding enc = null; byte[] hash = null; int nI = 0; string TEST_DATA = null; byte[] TEST_HASH = null; Tiger tg = null; int _Vb_t_i4_0 = 0; byte[] _Vb_t_array_0 = null; TEST_DATA = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"; _Vb_t_array_0 = new byte[] { ((byte)15), ((byte)123), ((byte)249), ((byte)161), ((byte)155), ((byte)156), ((byte)88), ((byte)242), ((byte)183), ((byte)97), ((byte)13), ((byte)247), ((byte)232), ((byte)79), ((byte)10), ((byte)195), ((byte)167), ((byte)28), ((byte)99), ((byte)30), ((byte)123), ((byte)83), ((byte)247), ((byte)142) }; TEST_HASH = _Vb_t_array_0; tg = new Tiger(); tg.Initialize(); enc = new ASCIIEncoding(); hash = tg.ComputeHash(enc.GetBytes(TEST_DATA)); if (hash.Length != TEST_HASH.Length) { return(false); } _Vb_t_i4_0 = (TEST_HASH.Length - 1); for (nI = 0; (nI <= _Vb_t_i4_0); nI++) { if (hash[nI] != TEST_HASH[nI]) { return(false); } } return(true); }
//leaf hash. private byte[] LH(byte[] Raw_Data) { byte[] Data = new byte[Raw_Data.Length + 1]; Data[0] = 0x00; //leaf hash mark. Raw_Data.CopyTo(Data,1); //gets tiger hash value for leafs blocks. Tiger TG = new Tiger(); TG.Initialize(); return TG.ComputeHash(Data); }
//internal hash. private byte[] IH(byte[] LeafA,byte[] LeafB) { byte[] Data = new byte[LeafA.Length + LeafB.Length + 1]; Data[0] = 0x01; //internal hash mark. //combines two leafs. LeafA.CopyTo(Data,1); LeafB.CopyTo(Data,LeafA.Length + 1); //gets tiger hash value for combined leaf hash. Tiger TG = new Tiger(); TG.Initialize(); return TG.ComputeHash(Data); }
public static bool SelfTest() { ASCIIEncoding enc = null; byte[] hash = null; int nI = 0; string TEST_DATA = null; byte[] TEST_HASH = null; Tiger tg = null; int _Vb_t_i4_0 = 0; byte[] _Vb_t_array_0 = null; TEST_DATA = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"; _Vb_t_array_0 = new byte[] { ((byte) 15), ((byte) 123), ((byte) 249), ((byte) 161), ((byte) 155), ((byte) 156), ((byte) 88), ((byte) 242), ((byte) 183), ((byte) 97), ((byte) 13), ((byte) 247), ((byte) 232), ((byte) 79), ((byte) 10), ((byte) 195), ((byte) 167), ((byte) 28), ((byte) 99), ((byte) 30), ((byte) 123), ((byte) 83), ((byte) 247), ((byte) 142) }; TEST_HASH = _Vb_t_array_0; tg = new Tiger (); tg.Initialize (); enc = new ASCIIEncoding (); hash = tg.ComputeHash (enc.GetBytes (TEST_DATA)); if (hash.Length != TEST_HASH.Length) { return false; } _Vb_t_i4_0 = (TEST_HASH.Length - 1); for (nI = 0; (nI <= _Vb_t_i4_0); nI++) { if (hash[nI] != TEST_HASH[nI]) { return false; } } return true; }
void ProcessLeafs() { FileStream ThreadFilePtr = new FileStream(Filename,FileMode.Open,FileAccess.Read); FileBlock ThreadFileBlock = FileParts[Convert.ToInt16(Thread.CurrentThread.Name)]; Tiger TG = new Tiger(); byte[] DataBlock; byte[] Data = new byte[LeafSize + 1]; int LeafIndex,BlockLeafs; int i; ThreadFilePtr.Position = ThreadFileBlock.Start; while (ThreadFilePtr.Position < ThreadFileBlock.End) { LeafIndex = (int) ThreadFilePtr.Position / 1024; if (ThreadFileBlock.End - ThreadFilePtr.Position < DataBlockSize) DataBlock = new byte[ThreadFileBlock.End - ThreadFilePtr.Position]; else DataBlock = new byte[DataBlockSize]; ThreadFilePtr.Read(DataBlock,0,DataBlock.Length); //read block BlockLeafs = DataBlock.Length / 1024; for (i = 0; i < BlockLeafs; i++) { Buffer.BlockCopy(DataBlock,i * LeafSize,Data,1,LeafSize); TG.Initialize(); TTH[0][LeafIndex++] = TG.ComputeHash(Data); } if (i * LeafSize < DataBlock.Length) { Data = new byte[DataBlock.Length - BlockLeafs * LeafSize + 1]; Data[0] = LeafHash; Buffer.BlockCopy(DataBlock,BlockLeafs * LeafSize,Data,1,(Data.Length - 1)); TG.Initialize(); TTH[0][LeafIndex++] = TG.ComputeHash(Data); Data = new byte[LeafSize + 1]; Data[0] = LeafHash; } } DataBlock = null; Data = null; }
void ProcessInternalLeaf(int Level,int Index,byte[] LeafA,byte[] LeafB) { Tiger TG = new Tiger(); byte[] Data = new byte[LeafA.Length + LeafB.Length + 1]; Data[0] = InternalHash; Buffer.BlockCopy(LeafA,0,Data,1,LeafA.Length); Buffer.BlockCopy(LeafB,0,Data,LeafA.Length + 1,LeafA.Length); TG.Initialize(); TTH[Level][Index] = TG.ComputeHash(Data); }