Cyphernomicon Tim May's CryptoNotes, and an introduction to the Cypherpunks. http://www2.pro-ns.net/~crypto/cyphernomicon.html

The Munitions Maker Graphic Campaign to distribute image (rsa2d.gif) in protest of ITAR regulations that treat encryption as munitions. http://online.offshore.com.ai/arms-trafficker/rsa2d.html

Cypherpunks Group, with mailing list, that is interested in privacy and cryptography. ftp://ftp.csua.berkeley.edu/pub/cypherpunks/mailing_list/index.html

Strong Cryptography Links on the Internet Dealing with cryptography, information security, cryptographers government, commercial, university, and personal sites, newsgroups, publications, programs and applications. http://www.c4i.org/erehwon/crypto.html

Choosing a Good Password Tips on choosing a difficult to crack password and pitfalls in password selection. http://www.cs.umd.edu/faq/Passwords.shtml

Coderpunks Little sister of the cypherpunk mailing list. Discussion of implementations of strong, robust cryptosystems. http://home.att.net/~lewis.mccarthy/InfosecProjects/Coderpunks/

RSA - Hacking and Cracking Discusses security problems and possible attacks against the RSA cryptosystem. http://members.tripod.com/irish_ronan/rsa/

Handbook of Applied Cryptography Reference work available for free download (with restrictions) from the Web. http://www.cacr.math.uwaterloo.ca/hac/

Crypto-Gram Free monthly email newsletter covering developments in cryptography and other computer security issues. http://www.counterpane.com/crypto-gram.html

International Association for Cryptologic Research (IACR) Non-profit scientific organisation intended to further research in cryptology. http://www.iacr.org/

Cryptography FAQ Ten part FAQ list that is essential reading for any newcomer to cryptography. http://www.faqs.org/faqs/cryptography-faq/

Cryptography World Introduction to cryptography, including concepts, key management and application. http://www.cryptographyworld.com

Polymorphic Cipher Theory Article by C. B. Roellgen discussing a class of self-compiling symmetric encryption algorithms. http://www.ciphers.de/products/polymorphic_cipher_theory.html

Cryptonomicon Cryptography related articles, downloads, news, links and discussions. http://www.cryptonomicon.net/

Adam Back's Homepage: Cypherspace Find information on some cryptanalytic hacks, breaking weak cryptosystems and links to more cryptography related websites. http://cypherspace.org/adam/

Crypto Machines Features machines and systems used in secure communications. Includes brief history on cryptography. http://webhome.idirect.com/~jproc/crypto/

International Cryptography Freedom Links to cryptography related downloads and information from around the world. http://www.piracy.com

VB2theMax: Inside Internet Security Extract from chapter 19 of book on Internet security. http://www.vb2themax.com/HtmlDoc.asp?Table=Books&ID=5200

Cryptography - An Overview Introduction to cryptography, listing main techniques and algorithms. http://www.hack.gr/users/dij/crypto/overview

Home of HB9CUF Free cryptographic tools: CryptoUP to secure and transport any kind of file; FindSR helps to analyze ciphertext. http://cryptoup.roenet.ch/