Basic HTML version of Foils prepared April 7 1998

Foil 31 Secret Key Cryptography

From Basic Principles of Java and Internet Security CPS616 Web Technologies -- Spring 98. by Geoffrey C. Fox
1 This involves a single secret key and standards are DES (Digital Encryption Standard) and IDEA (International Data Encryption Algorithm)
2 Commercial systems (used in SSL) are RC2 RC4 RC5
  • Note 40 bit RC2 takes a 64 MIP computer one year to break
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