Hi, thanks for answer.
At the moment in my application I create an random IV and a random KEY.
Client after this creation send them to Server encrpyting all with RSA public
key.
Client decrypt the message with private key, and from this point the
communication will be based
on DES in cbc mode using IV and KEY just created.
in CBC mode the last cipher-text is used to recovery plain text (except for
first time , where IV is used).
Client gets input from stdin , encrypt and send the message to Client.
Since, user input is not always multiple of 8 byte (in size) I need to use some
form of padding, to make this I used Encrypt_final .
After called Encrypt_final you said me that is needed to recall Init function.
Could I use always the same IV to make this?
Use the old cipher-text is wrong?
Recreate an IV and send it to Server seems result in bad perfomance, no?
I'm repeating the question because I added several details.
Bye
Best Regards
Enrico
