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Getting error 8195 when trying to decrypt stream

Posted: 04/01/2016 10:23:25
by Luis Soto (Standard support level)
Joined: 07/07/2015
Posts: 4

I'm getting the error 8195 when trying to decrypt a Stream.

I was able to encrypt the Stream and I'm saving the encrypted file in a different location.
Later on, when trying to get the file and decrypt it, I'm getting that error.

This is the code we are using to decrypt:
int a;
Stream fsResult = new MemoryStream();
TElMessageDecryptor decr = new TElMessageDecryptor(null);            
memoryCertStorage = new TElMemoryCertStorage();

  memoryCertStorage.Add(certificateForDecrypt, true);
  decr.CertStorage = memoryCertStorage;
  a = decr.Decrypt(filestream, fsResult);
// Code omitted

We already made sure that we are using the same certificate we used to encrypt.

Posted: 04/01/2016 10:35:04
by Vsevolod Ievgiienko (Team)

Thank you for contacting us.

Error code 8195 stands for SB_MESSAGE_ERROR_KEY_DECRYPTION_FAILED. It means that TElMessageDecryptor was unable to decrypt the content encryption key and there is high possibility that message is corrupted.

First of all check if all stream positions are reset to zero before Encryption/Decryption is performed. If its not the reason of the error, then it will be great if you can create a compilable test case that we can use to reproduce the problem.



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