public static string GetSHAHashData(string data, SHAAlgorithmType SHAType)
{
byte[] hashData = new byte[] { };
switch (SHAType)
{
case SHAAlgorithmType.SHA1:
{
SHA1 sha = SHA1.Create();
hashData = sha.ComputeHash(Encoding.Default.GetBytes(data));
break;
}
case SHAAlgorithmType.SHA256:
{
SHA256 sha = SHA256.Create();
hashData = sha.ComputeHash(Encoding.Default.GetBytes(data));
break;
}
case SHAAlgorithmType.SHA384:
{
SHA384 sha = SHA384.Create();
hashData = sha.ComputeHash(Encoding.Default.GetBytes(data));
break;
}
case SHAAlgorithmType.SHA512:
{
SHA512 sha = SHA512.Create();
hashData = sha.ComputeHash(Encoding.Default.GetBytes(data));
break;
}
default:
{
SHA1 sha = SHA1.Create();
hashData = sha.ComputeHash(Encoding.Default.GetBytes(data));
break;
}
}
//create new instance of StringBuilder to save hashed data
StringBuilder returnValue = new StringBuilder();
//loop for each byte and add it to StringBuilder
foreach (byte x in hashData)
{
returnValue.Append(string.Format("{0:X2}", x));
}
// return hexadecimal string
return(returnValue.ToString());
}
public static bool ValidateSHAHashData(string inputData, string storedHashData, SHAAlgorithmType SHAType)
{
//hash input text and save it string variable
string getHashInputData = GetSHAHashData(inputData, SHAType);
if (string.Compare(getHashInputData, storedHashData) == 0)
{
return(true);
}
else
{
return(false);
}
}
