1. SysrandomSecure random number generation for Ruby using system RNG facilities
2. CryptosphereEncrypted peer-to-peer web application platform for decentralized, privacy-preserving applications
3. CryptorAn easy-to-use library for real-world Ruby cryptography
4. ConfusionAn experiment in fingerprint-free encrypted messaging
5. OrdoOrdered Representation for Distinguished Objects: A Certificate Format
6. macaroons-rsMacaroons: bearer credentials with caveats for distributed authorization