private byte[] LH(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));
}
private byte[] IH(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);
}
