- Algorithm type: Key encapsulation mechanism.
- Main cryptographic assumption: Module LWE+R with base ring Z[x]/(3329, x^256+1).
- Principal submitters: Peter Schwabe.
- Auxiliary submitters: Roberto Avanzi, Joppe Bos, Léo Ducas, Eike Kiltz, Tancrède Lepoint, Vadim Lyubashevsky, John M. Schanck, Gregor Seiler, Damien Stehlé.
- Authors' website: https://pq-crystals.org/
- Specification version: NIST Round 3 submission.
- Primary Source:
- Source: https://github.com/pq-crystals/kyber/commit/441c0519a07e8b86c8d079954a6b10bd31d29efc with copy_from_upstream patches
- Implementation license (SPDX-Identifier): CC0-1.0 or Apache-2.0
- Optimized Implementation sources: https://github.com/pq-crystals/kyber/commit/441c0519a07e8b86c8d079954a6b10bd31d29efc with copy_from_upstream patches
- oldpqclean-aarch64:
- Source: https://github.com/PQClean/PQClean/commit/8e220a87308154d48fdfac40abbb191ac7fce06a with copy_from_upstream patches
- Implementation license (SPDX-Identifier): CC0-1.0 and (CC0-1.0 or Apache-2.0) and (CC0-1.0 or MIT) and MIT
- oldpqclean-aarch64:
Parameter set | Parameter set alias | Security model | Claimed NIST Level | Public key size (bytes) | Secret key size (bytes) | Ciphertext size (bytes) | Shared secret size (bytes) |
---|---|---|---|---|---|---|---|
Kyber512 | NA | IND-CCA2 | 1 | 800 | 1632 | 768 | 32 |
Kyber768 | NA | IND-CCA2 | 3 | 1184 | 2400 | 1088 | 32 |
Kyber1024 | NA | IND-CCA2 | 5 | 1568 | 3168 | 1568 | 32 |
Implementation source | Identifier in upstream | Supported architecture(s) | Supported operating system(s) | CPU extension(s) used | No branching-on-secrets claimed? | No branching-on-secrets checked by valgrind? | Large stack usage?‡ |
---|---|---|---|---|---|---|---|
Primary Source | ref | All | All | None | True | True | False |
Primary Source | avx2 | x86_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
oldpqclean-aarch64 | aarch64 | ARM64_V8 | Linux,Darwin | None | True | False | False |
Are implementations chosen based on runtime CPU feature detection? Yes.
‡For an explanation of what this denotes, consult the Explanation of Terms section at the end of this file.
Implementation source | Identifier in upstream | Supported architecture(s) | Supported operating system(s) | CPU extension(s) used | No branching-on-secrets claimed? | No branching-on-secrets checked by valgrind? | Large stack usage? |
---|---|---|---|---|---|---|---|
Primary Source | ref | All | All | None | True | True | False |
Primary Source | avx2 | x86_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
oldpqclean-aarch64 | aarch64 | ARM64_V8 | Linux,Darwin | None | True | False | False |
Are implementations chosen based on runtime CPU feature detection? Yes.
Implementation source | Identifier in upstream | Supported architecture(s) | Supported operating system(s) | CPU extension(s) used | No branching-on-secrets claimed? | No branching-on-secrets checked by valgrind? | Large stack usage? |
---|---|---|---|---|---|---|---|
Primary Source | ref | All | All | None | True | True | False |
Primary Source | avx2 | x86_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
oldpqclean-aarch64 | aarch64 | ARM64_V8 | Linux,Darwin | None | True | False | False |
Are implementations chosen based on runtime CPU feature detection? Yes.
- Large Stack Usage: Implementations identified as having such may cause failures when running in threads or in constrained environments.