CSci 4554 Cryptography - Resources.

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This page has handouts for the course and links to other helpful material. The material will be added as needed.

The wiki page for this class

Wikipedia articles on cryptography and related links

• A very nice Wikipedia artcile on frequencies of letters. Has frequency tables for several European languages that we will use in a homework assignment.
• A web site that lists most common English letter combinations and words

Online demonstrations

• Extended Euclidean algorithm applet. Computes the gcd and represents it as a linear combination of the two given numbers.
• A demo of the Vigenere cipher

Java cryptographic functions

Other

And finally, don't forget about the real life: