śarkarā

Sarkara is a Post-Quantum cryptography library.

Public-key cryptography

• Authenticated encryption
  • [x] newhope-ascon
  • [x] newhope-hc256hmacblake2
• Signatures
  • [x] [bliss](http://bliss.di.ens.fr/)
• Key exchange
  • [x] [newhope](https://eprint.iacr.org/2015/1092)

Secret-key cryptography

• Authenticated encryption
  • [x] [ascon (if it is CAESAR winner)](http://ascon.iaik.tugraz.at/)
  • [x] hc256hmacblake2
• Encryption
  • [x] [hc256](http://www.ecrypt.eu.org/stream/hcpf.html)
• Authentication
  • [x] HMAC (nonce variant)
• Key derivation
  • [x] [argon2](https://password-hashing.net/)

Low-level functions

• Hashing
  • [x] [blake2](https://blake2.net/)

Reference

• Breaking Symmetric Cryptosystems using Quantum Period Finding
• Quantum-Secure Message Authentication Codes
• Post-quantum security models for authenticated encryption
• Post-quantum security models for authenticated encryption (talk ppt)
• Post-Quantum Cryptography: NIST's Plan for the Future - PQCrypto 2016
• Experimenting with Post-Quantum Cryptography
• The BRUTUS automatic cryptanalytic framework