http://security.stackexchange.com/questions/19473/understanding-2048-bit-ssl-and-256-bit-encryption http://security.stackexchange.com/questions/19473/understand

http://security.stackexchange.com/questions/19473/understanding-2048-bit-ssl-and-256-bit-encryption http://security.stackexchange.com/questions/19473/understand... TL;DR: 2048bit is for the RSA keys, 128/256bit is the the key used in the SSL connection.