First CRC16 is in fact used as a "perfect hash function" It must be implemented by all clients too, so it needs to be simple and readily available. open to an

First CRC16 is in fact used as a "perfect hash function" It must be implemented by all clients too, so it needs to be simple and readily available. open to an attack by image by a malevolent attacker That wasn't one of the design goals. if you have a tolerance for faulty storage, There's always the problem of storage corrupting only the checksum even if your data is okay, leaving you in a pretty pickle.