CSE 207: Links
Standing the test of time: The Data Encryption Standard
: pdf file of an article on DES by Susan Landau that is a good accompanyment to the chapter on block ciphers in the course notes.
Rijndael: NIST's selection for AES
Speeds of AES implementations
Some factorization records
RSA factoring challenges
Recent Progress and Prospects for Integer Factorisation Algorithms
by Richard Brent.
Discrete logarithm computation records
CRANK (CRyptANalysis toolKit)
: About classical ciphers and how to break them. [Link provided by Eugene Tsyrklevich]