Encryption / Different output on same input

[Arthur Hefti]

Title: Encryption / Different output on same input

Hi

What's wrong here. I have this code in a DLL. When calling this functions I got sometimes different output on same input, key and iv. The problem is also the same without Gzip.

byte            iv[16]={'A','m','1','?','_','1','L','?','�','q','u','L','*','m','a','p'};
string          cmpstring,outstring;

// Compress
StringSource( bIn, inSize, true, new Gzip( new StringSink(cmpstring)));

// Encrypt
DES_EDE3_Encryption desE(key);   
StringSource( cmpstring, inSize, true, new CBC_CTS_Encryptor(desE, iv, new HexEncoder( new StringSink(outstring))));

Regards
Arthur