Link Search Menu Expand Document

CRYSTALS-Kyber

  • Algorithm type: key encapsulation mechanism
  • Main cryptographic assumption: module learning with errors (MLWE)
  • Scheme authors: Roberto Avanzi, Joppe Bos, Léo Ducas, Eike Kiltz, Tancrède Lepoint, Vadim Lyubashevsky, John M. Schanck, Peter Schwabe, Gregor Seiler, Damien Stehle
  • Authors’ website: https://pq-crystals.org/kyber
  • Version: NIST Round 2 submission

Implementation

  • Source of implementation: https://github.com/pq-crystals/kyber
  • Implementation version: https://github.com/PQClean/PQClean/commit/c50bc64a40ce83639cff54419fce60483a30c430
  • License: Public domain
  • Constant-time: Yes
  • Optimizations: Portable C with AVX2 instructions (if available at run-time)

Parameter sets

Parameter set Security model Claimed NIST security level Public key size (bytes) Secret key size (bytes) Ciphertext size (bytes) Shared secret size (bytes)
Kyber512 IND-CCA 1 800 1632 736 32
Kyber512-90s IND-CCA 1 800 1632 736 32
Kyber768 IND-CCA 3 1184 2400 1088 32
Kyber768-90s IND-CCA 3 1184 2400 1088 32
Kyber1024 IND-CCA 5 1568 3168 1568 32
Kyber1024-90s IND-CCA 5 1568 3168 1568 32







Copyright © 2017-2020 The Open Quantum Safe Project.
This site uses Just the Docs, a documentation theme for Jekyll. Background image by Rick Doble.