February 2012
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Overview Of The Application Layer




Computer networks are inherently insecure. To keep information secret, it must be encrypted. Encryption protocols fall into two general classes: secret key (e.g. DES, IDEA), and public key (e.g. RSA). Using these protocols is straight-forward; the hard part is key management. In addition to providing secrecy, cryptographic protocols can also provide authentication. Finally, cryptography can [...]