public static byte[] process(byte[] secretKey, byte[] data, int length)
{
SHA1HashFunction sha = new SHA1HashFunction();
SHA1HashFunction sha2 = new SHA1HashFunction();
byte[] buffer = new byte[SHA1HashFunction.HashSize];
byte[] buffer2 = new byte[SHA1HashFunction.HashSize];
int arg_28_0 = SHA1HashFunction.HashSize;
byte[] buffer3 = new byte[SHA1HashFunction.BlockSize];
int hashSize = secretKey.Length;
if (hashSize > SHA1HashFunction.BlockSize)
{
SHA1HashFunction sha3 = new SHA1HashFunction();
sha3.Reset();
sha3.Input(secretKey);
secretKey = sha3.Result();
hashSize = SHA1HashFunction.HashSize;
}
sha.Reset();
for (int num = 0; num < hashSize; num++)
{
buffer3[num] = (byte)(secretKey[num] ^ 54);
}
for (int num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer3[num] = 54;
}
sha.Input(buffer3);
sha.Input(data);
buffer = sha.Result();
sha2.Reset();
for (int num = 0; num < hashSize; num++)
{
buffer3[num] = (byte)(secretKey[num] ^ 92);
}
for (int num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer3[num] = 92;
}
sha2.Input(buffer3);
sha2.Input(buffer);
buffer2 = sha2.Result();
length = ((length > SHA1HashFunction.HashSize) ? SHA1HashFunction.HashSize : length);
byte[] buffer4 = new byte[length];
CryptoEngineHMACSHA1.truncate(buffer2, buffer4, length);
return(buffer4);
}
/// <summary>
/// </summary>
/// <param name="secretKey"></param>
/// <param name="data"></param>
/// <param name="length"></param>
/// <returns></returns>
public static byte[] process(byte[] secretKey, byte[] data, int length)
{
int num;
SHA1HashFunction sha = new SHA1HashFunction();
SHA1HashFunction sha2 = new SHA1HashFunction();
byte[] buffer = new byte[SHA1HashFunction.HashSize];
byte[] buffer2 = new byte[SHA1HashFunction.HashSize];
byte[] buffer3 = new byte[SHA1HashFunction.HashSize];
byte[] buffer4 = new byte[SHA1HashFunction.BlockSize];
int hashSize = secretKey.Length;
if (hashSize > SHA1HashFunction.BlockSize)
{
SHA1HashFunction sha3 = new SHA1HashFunction();
sha3.Reset();
sha3.Input(secretKey);
secretKey = sha3.Result();
hashSize = SHA1HashFunction.HashSize;
}
sha.Reset();
for (num = 0; num < hashSize; num++)
{
buffer4[num] = (byte)(secretKey[num] ^ 0x36);
}
for (num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer4[num] = 0x36;
}
sha.Input(buffer4);
sha.Input(data);
buffer = sha.Result();
sha2.Reset();
for (num = 0; num < hashSize; num++)
{
buffer4[num] = (byte)(secretKey[num] ^ 0x5c);
}
for (num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer4[num] = 0x5c;
}
sha2.Input(buffer4);
sha2.Input(buffer);
buffer2 = sha2.Result();
length = (length > SHA1HashFunction.HashSize) ? SHA1HashFunction.HashSize : length;
byte[] buffer5 = new byte[length];
truncate(buffer2, buffer5, length);
return(buffer5);
}
/// <summary>
/// </summary>
/// <param name="secretKey"></param>
/// <param name="data"></param>
/// <param name="length"></param>
/// <returns></returns>
public static byte[] process(byte[] secretKey, byte[] data, int length)
{
int num;
SHA1HashFunction sha = new SHA1HashFunction();
SHA1HashFunction sha2 = new SHA1HashFunction();
byte[] buffer = new byte[SHA1HashFunction.HashSize];
byte[] buffer2 = new byte[SHA1HashFunction.HashSize];
byte[] buffer3 = new byte[SHA1HashFunction.HashSize];
byte[] buffer4 = new byte[SHA1HashFunction.BlockSize];
int hashSize = secretKey.Length;
if (hashSize > SHA1HashFunction.BlockSize)
{
SHA1HashFunction sha3 = new SHA1HashFunction();
sha3.Reset();
sha3.Input(secretKey);
secretKey = sha3.Result();
hashSize = SHA1HashFunction.HashSize;
}
sha.Reset();
for (num = 0; num < hashSize; num++)
{
buffer4[num] = (byte)(secretKey[num] ^ 0x36);
}
for (num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer4[num] = 0x36;
}
sha.Input(buffer4);
sha.Input(data);
buffer = sha.Result();
sha2.Reset();
for (num = 0; num < hashSize; num++)
{
buffer4[num] = (byte)(secretKey[num] ^ 0x5c);
}
for (num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer4[num] = 0x5c;
}
sha2.Input(buffer4);
sha2.Input(buffer);
buffer2 = sha2.Result();
length = (length > SHA1HashFunction.HashSize) ? SHA1HashFunction.HashSize : length;
byte[] buffer5 = new byte[length];
truncate(buffer2, buffer5, length);
return buffer5;
}
public static byte[] process(byte[] secretKey, byte[] data, int length)
{
SHA1HashFunction sha = new SHA1HashFunction();
SHA1HashFunction sha2 = new SHA1HashFunction();
byte[] buffer = new byte[SHA1HashFunction.HashSize];
byte[] buffer2 = new byte[SHA1HashFunction.HashSize];
int arg_28_0 = SHA1HashFunction.HashSize;
byte[] buffer3 = new byte[SHA1HashFunction.BlockSize];
int hashSize = secretKey.Length;
if (hashSize > SHA1HashFunction.BlockSize)
{
SHA1HashFunction sha3 = new SHA1HashFunction();
sha3.Reset();
sha3.Input(secretKey);
secretKey = sha3.Result();
hashSize = SHA1HashFunction.HashSize;
}
sha.Reset();
for (int num = 0; num < hashSize; num++)
{
buffer3[num] = (byte)(secretKey[num] ^ 54);
}
for (int num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer3[num] = 54;
}
sha.Input(buffer3);
sha.Input(data);
buffer = sha.Result();
sha2.Reset();
for (int num = 0; num < hashSize; num++)
{
buffer3[num] = (byte)(secretKey[num] ^ 92);
}
for (int num = hashSize; num < SHA1HashFunction.BlockSize; num++)
{
buffer3[num] = 92;
}
sha2.Input(buffer3);
sha2.Input(buffer);
buffer2 = sha2.Result();
length = ((length > SHA1HashFunction.HashSize) ? SHA1HashFunction.HashSize : length);
byte[] buffer4 = new byte[length];
CryptoEngineHMACSHA1.truncate(buffer2, buffer4, length);
return buffer4;
}
private void ProcessMessageBlock()
{
uint[] numArray = new uint[]
{
1518500249u,
1859775393u,
2400959708u,
3395469782u
};
uint[] numArray2 = new uint[80];
for (int num = 0; num < 16; num++)
{
numArray2[num] = (uint)((uint)this.Message_Block[num * 4] << 24);
numArray2[num] |= (uint)((uint)this.Message_Block[num * 4 + 1] << 16);
numArray2[num] |= (uint)((uint)this.Message_Block[num * 4 + 2] << 8);
numArray2[num] |= (uint)this.Message_Block[num * 4 + 3];
}
for (int num = 16; num < 80; num++)
{
numArray2[num] = SHA1HashFunction.CircularShift(1, numArray2[num - 3] ^ numArray2[num - 8] ^ numArray2[num - 14] ^ numArray2[num - 16]);
}
uint word = this.Intermediate_Hash[0];
uint num2 = this.Intermediate_Hash[1];
uint num3 = this.Intermediate_Hash[2];
uint num4 = this.Intermediate_Hash[3];
uint num5 = this.Intermediate_Hash[4];
for (int num = 0; num < 20; num++)
{
uint num6 = SHA1HashFunction.CircularShift(5, word) + ((num2 & num3) | (~num2 & num4)) + num5 + numArray2[num] + numArray[0];
num5 = num4;
num4 = num3;
num3 = SHA1HashFunction.CircularShift(30, num2);
num2 = word;
word = num6;
}
for (int num = 20; num < 40; num++)
{
uint num6 = SHA1HashFunction.CircularShift(5, word) + (num2 ^ num3 ^ num4) + num5 + numArray2[num] + numArray[1];
num5 = num4;
num4 = num3;
num3 = SHA1HashFunction.CircularShift(30, num2);
num2 = word;
word = num6;
}
for (int num = 40; num < 60; num++)
{
uint num6 = SHA1HashFunction.CircularShift(5, word) + ((num2 & num3) | (num2 & num4) | (num3 & num4)) + num5 + numArray2[num] + numArray[2];
num5 = num4;
num4 = num3;
num3 = SHA1HashFunction.CircularShift(30, num2);
num2 = word;
word = num6;
}
for (int num = 60; num < 80; num++)
{
uint num6 = SHA1HashFunction.CircularShift(5, word) + (num2 ^ num3 ^ num4) + num5 + numArray2[num] + numArray[3];
num5 = num4;
num4 = num3;
num3 = SHA1HashFunction.CircularShift(30, num2);
num2 = word;
word = num6;
}
this.Intermediate_Hash[0] += word;
this.Intermediate_Hash[1] += num2;
this.Intermediate_Hash[2] += num3;
this.Intermediate_Hash[3] += num4;
this.Intermediate_Hash[4] += num5;
this.Message_Block_Index = 0;
}
