Hello, This seems to be a pretty typical question that gets posted often. I have a simple example that I think hits it. Anyway, its the first entry into a blog that I'm starting to building up. If your interested the code and (a brief) explanation is available here:
http://agabrielson.wordpress.com/2010/07/15/openssl-an-example-from-the-command-line/#more-4 One note - I didn't use the ex function; I used the older version. It should give you a slightly easier place to start from. Anthony ----- Original Message ----- From: "Rudy1" <r...@compumatica.eu> To: openssl-users@openssl.org Sent: Thursday, July 15, 2010 5:37:38 AM Subject: AES128 CBC I'm using the openssl crypto lib first time and I don't know how to encrypt text larger than blocksize (16 byte) . For example I want to encrypt a string of size 292 bytes. I call EVP_EncryptUpdate () one time and 288 bytes will be encrypted and finally I call EVP_EncryptFinal_ex(). Do I really encrypt the whole string correctly? Or do I have to call EVP_EncryptUpdate () for every blocksize chunk of my string? How large is the encrypted string? I would expect 304 bytes (288 + 16). Is this correct? Rudy1 View this message in context: AES128 CBC Sent from the OpenSSL - User mailing list archive at Nabble.com.
