- Cryptix Standard Cryptographic Algorithm Naming - Introduces a system to enumerate and give standard reference identifiers for cryptographic algorithms with sufficient detail that independent implementations will be able to interoperate.
- Cryptography, Security and Linux - A security resource with information on cryptographic algorithms.
- General Hash Function Algorithms - General hash function algorithm implementations for string hashing in the object pascal, c and c++ programming languages.
- Grotex Lab. - Complex calculations systems - The site represents two programs: " StringMath 1.0" - the ultraprecise calculator; " UlDi 2.0 Pro "- development and realization of methods of coding, decoding and compression (archiving) of data.
- Kremlin by Mach 5 Software - A description of various cryptographic algorithms and a commercial suite of encryption software.
- Neil Johnson's Cryptography Site - A resource featuring current security news and an introduction to cryptography.
- North American Cryptography Archives - A comprehensive archive for cryptography source code, software, literature, and links.
- Provably secure protocols - A list of published provably secure key establishment and mutual authentication protocols.
- SSH and Cryptographic Algorithms - A brief survey of some commonly used cryptographic algorithms.
- Steve's Encryption Forums - Hosted by Steves-Homepage and features Chat forums discussing encryption systems and algorithms across europe and the rest of the world - requires registration and login.
- Stubblebine Research Labs - List of current and past projects and publications.
- Teutoburgo: OTP4U - Contains a Java crypto-tool that allows the users to easily exchange a random key between them and then use it as a key for a One Time Pad cipher.