private string CalculateHash(byte[] input, ChecksumAlgorithm checksumAlgorithm)
{
HashUtils.HashAlgorithm alg = getHashAlgorithm(checksumAlgorithm);
if (this.HasError())
{
return("");
}
Hashing hash = new Hashing();
byte[] digest = hash.calculateHash(alg, input);
if (hash.HasError())
{
this.error = hash.GetError();
return("");
}
return(toHexaString(digest));
}
public string calculate(string plainText, string password, string algorithm)
{
byte[] pass = SecurityUtils.GetHexa(password, "HS002", this.error);
if (this.HasError())
{
return("");
}
EncodingUtil eu = new EncodingUtil();
byte[] inputBytes = eu.getBytes(plainText);
if (this.HasError())
{
return("");
}
Hashing hash = new Hashing();
HashUtils.HashAlgorithm alg = HashAlgorithmUtils.getHashAlgorithm(algorithm, this.error);
if (this.HasError())
{
return("");
}
IDigest digest = hash.createHash(alg);
HMac engine = new HMac(digest);
try
{
engine.Init(new KeyParameter(pass));
}catch (Exception e)
{
this.error.setError("HS003", e.Message);
return("");
}
byte[] resBytes = new byte[engine.GetMacSize()];
engine.BlockUpdate(inputBytes, 0, inputBytes.Length);
engine.DoFinal(resBytes, 0);
string result = toHexastring(resBytes);
if (!this.error.existsError())
{
return(result);
}
return("");
}
