Basic HTML version of Foils prepared May 30 99

Foil 6 Security Uses of Cryptography

From Basic Mathematics of Security Systems CPS714 Computational Science Information Track -- June 2 99. by Geoffrey C. Fox
1 1)Transmitting over insecure channels
2 2)Storage on insecure media (essentially the same ideas as 1) but applied to a different need)
3 3)Authentication of computers or people at end of a message transmission. This includes digital signatures and password hashing
4 4)Integrity check that message delivered was the one sent (this is different from ensuring that nobody read information which is 1)). This is called message integrity
in Table To:

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