Computer and Network Security: Cryptanalysis

• Randomness for cryptography and other uses
• Vigenere applet
• Caesar routine, with letter frequencies; strange relation intro
• U.S. Data-Scrambling Code Cracked With Homemade Equipment (56-bit DES, 56 hours using dedicated hardware)
• Team latest to crack 56-bit crypto (56-bit DES, 40 days)
• Users take crack at 56-bit crypto (DES)
• Feds OK 128-bit crypto amid protests
• 48-bit crypto latest to crack
• 40-bit crypto hacked easily: RSA 40-bit key cracked with 250 workstations in about 4 hours (1/29/97)