public void Execute()
{
ProgressChanged(0, 1);
System.Security.Cryptography.HMAC hmacAlgorithm;
switch ((HMACSettings.HashFunction)settings.SelectedHashFunction)
{
case HMACSettings.HashFunction.MD5:
hmacAlgorithm = new System.Security.Cryptography.HMACMD5();
break;
case HMACSettings.HashFunction.RIPEMD160:
hmacAlgorithm = new System.Security.Cryptography.HMACRIPEMD160();
break;
case HMACSettings.HashFunction.SHA1:
hmacAlgorithm = new System.Security.Cryptography.HMACSHA1();
break;
case HMACSettings.HashFunction.SHA256:
hmacAlgorithm = new System.Security.Cryptography.HMACSHA256();
break;
case HMACSettings.HashFunction.SHA384:
hmacAlgorithm = new System.Security.Cryptography.HMACSHA384();
break;
case HMACSettings.HashFunction.SHA512:
hmacAlgorithm = new System.Security.Cryptography.HMACSHA512();
break;
default:
GuiLogMessage("No hash algorithm for HMAC selected, using MD5.", NotificationLevel.Warning);
hmacAlgorithm = new System.Security.Cryptography.HMACMD5();
break;
}
hmacAlgorithm.Key = key;
OutputData = (inputData != null) ? hmacAlgorithm.ComputeHash(inputData.CreateReader()) : hmacAlgorithm.ComputeHash(new byte[] {});
GuiLogMessage(String.Format("HMAC computed. (using hash algorithm {0}: {1})", settings.SelectedHashFunction, hmacAlgorithm.GetType().Name), NotificationLevel.Info);
ProgressChanged(1, 1);
}
