Collection of open-source JavaCard crypto algorithms. Optimized for memory and speed with unified interface (where possible). See each algorithm's own readme file for more details.

Featured algorithms:

• AEGIS, ACORN, ASCON, CLOC, MORUS - Authenticated Encryption
• TWINE, Zorro - Block Ciphers
• SHA-3 - Message Digest
• PBKDF2 - Key derivation
• OpenPGP - extend your GnuPG with smart card!

List of known JC crypto algs on GitHub:

• Elliptic curves: JCMathLib
• Sha3 (Keccak): JCSha3, OptimizedJCAlgs (Discontinued on JCSha3, continuing here; SHAKE not done yet)
• JCSWAlgs (don't blindly trust the code there)
  • Sha3
  • Sha512
  • AES
  • Twine Cipher (incorrect implementation there, correct here)
  • Zorro Cipher (correct implementation here, but the alg. design is not secure!)
• Primitives_SmartCard
  • Sha3
  • LBlock Cipher
  • Picollo Cipher
  • Rectangle Cipher
• Authenticated Encryption: AEonJC (well optimized)
  • AEGIS
  • ACORN
  • ASCON
  • CLOC
  • MORUS
• OpenPGP - open source PGP on JC
• LedgerHQ Wallet - implementation of Ledger cryptocurrency wallet on JC
• Password-based key derivation: OptimizedJCAlgs
  • PBKDF2 (Sha1, Sha256; single-block, 128-bit salt) (pretty slow)

Profiling and optimization tools:

• JCProfiler
• MemoryMeasurement
• JCAlgTest

JC miracle people: Martin Paljak, PetrS

• JC-ant
• Global Platform Pro
• Applet Playground