Cryptographic Hardware Security Modules
Nicko van Someren, nCipher Plc., UK
Previously we have seen how cryptography can be used to secure information in computer systems and networks. Encryption with a symmetric cipher can allow data at rest on a computer disc to be protected against those who do not have the key. Encryption with public key ciphers allow data to be sent across a network by any party such that only the designated recipient can make use of it. Message authentication codes can be used to detect when data have been altered and digital signatures can be used to check ...