AES by definition has a 128-bit block size and uses either a 128, 192 or 256-bit key.
If you mean the Rijndael algorithm, that is more flexible and can have a block size up to 256 bits, with no key size limit. I do not believe OpenSSL has the generic support (older versions may have from pre-AES days). Erik Tkal Hi, Is it possible to have AES 512 bit encryption in latest release of openssl. Regards, Uday,
