3 ms·
There are theoretical attacks against simply adding secret bits to a single hash. You're probably better off with HMAC, which is essentially md5($key . md5($key
by prodigal_erik 16y ago
There are theoretical attacks against simply adding secret bits to a single hash. You're probably better off with HMAC, which is essentially md5($key . md5($key . $message)) with a few padding details.
http://en.wikipedia.org/wiki/HMAC http://en.wikipedia.org/wiki/HMAC