public OperationResult StartServerAuthentication(string tokenInternalID, long movingFactorDrift, string dataEntropy, out string newPwd)
{
TokenCryptoData _tkCryptoData = new TokensDAO().loadTokenCryptoData(tokenInternalID);
OperationResult result;
if (_tkCryptoData.ID == null)
{
newPwd = null;
result = OperationResult.Error;
}
else
{
if (_tkCryptoData.TokenBaseParams.MovingFactorType != TokenMovingFactorType.EventBase && _tkCryptoData.TokenBaseParams.SeedType == TokenSeedType.ActivactionKey)
{
throw new Exception("Function not implemented for this type of token!!");
}
if (movingFactorDrift > 0L)
{
_tkCryptoData.ResetMovingFactor(movingFactorDrift);
}
newPwd = HOTPPwdGenerator.generate(_tkCryptoData, this._masterKey, (dataEntropy == null) ? new byte[0] : BaseFunctions.convertStringToByteArray(dataEntropy));
result = OperationResult.Success;
}
return(result);
}
public AutenticationStatus Autenticate(string tokenInternalID, string password, string dataEntropy, out string newChallenge)
{
newChallenge = null;
TokenCryptoData _tkCryptoData = new TokensDAO().loadTokenCryptoData(tokenInternalID);
AutenticationStatus result;
if (_tkCryptoData.ID == null)
{
result = AutenticationStatus.TokenNotFoundOrCanceled;
}
else
{
if (_tkCryptoData.TokenBaseParams.MovingFactorType != TokenMovingFactorType.TransactionAuthenticationNumber)
{
throw new Exception("Function not implemented for this type of token!!");
}
string currentChallenge = (string)new TokensChallengeRequestDAO().loadChallengeRequest(tokenInternalID);
if (currentChallenge == null)
{
result = AutenticationStatus.InvalidDataOnPasswordValidation;
}
else
{
int iRequest = int.Parse(SAFConfiguration.readParameterExternal("TANRequestPositions"));
int iDigitsByPos = int.Parse(SAFConfiguration.readParameterExternal("TANDigitsByPosition"));
int iFixPosOnFaill = int.Parse(SAFConfiguration.readParameterExternal("TANFixedPosOnFail"));
string _otp = string.Empty;
byte[] _tkSeedOpen = BaseFunctions.HexDecoder(_tkCryptoData.CryptoData.CryptoKey.Trim());
byte[] _dataEntropy = (dataEntropy == null || dataEntropy.Length < 1) ? new byte[0] : BaseFunctions.convertStringToByteArray(dataEntropy);
string[] _arrayPosValid = currentChallenge.Split(new char[]
{
'|'
});
string[] _arrayChallenge = BaseFunctions.DecodeFrom64(_tkCryptoData.CryptoData.SupportCryptoData.Trim()).Split(new char[]
{
';'
});
for (int idx = 0; idx < _arrayPosValid.Length; idx++)
{
string[] _temp = _arrayPosValid[idx].Trim().Split(new char[]
{
';'
});
_tkCryptoData.ResetMovingFactor(long.Parse(_arrayChallenge[(int)checked ((IntPtr)long.Parse(_temp[0]))]));
_otp += HOTPPwdGenerator.generate(_tkCryptoData, _tkSeedOpen, _dataEntropy).Substring(int.Parse(_temp[1]), 1);
}
if (password.Trim() == _otp)
{
if (OperationResult.Success == new TokensChallengeRequestDAO().resetChallengeRequest(tokenInternalID))
{
result = AutenticationStatus.Success;
return(result);
}
}
result = AutenticationStatus.TokenOrPasswordInvalid;
}
}
return(result);
}
