Please see the answer by cryptographer Thomas Pornin on AES 128 vs 256: http://security.stackexchange.com/questions/14068/why-most-people-use-256-bit-encryption

Please see the answer by cryptographer Thomas Pornin on AES 128 vs 256: http://security.stackexchange.com/questions/14068/why-most-people-use-256-bit-encryption-instead-of-128-bit http://security.stackexchange.com/questions/14068/why-most-p...