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* Switch to new PQClean commit for SPHINCS+ and remove old patch file * Improve "compilability" on Apple M1 (ARM) (#1421) * correct ARM SHA3 extension addition * correct compile option for ARM SHA * correct SHA3 enablement * Remove SPHINCS+ robust and Haraka variants * Fix SHA2 block sizes in OpenSSL wrapper * enable Keccak for Sphincs even if OpenSSL shall provide SHA3 * properly handle xkcp enablement if only specific algorithms are selected * correct conditional setting * re-enable XKCP for other platforms * Windows support * alternate pqcrystals-AES removal --------- Co-authored-by: Michael Baentsch <57787676+baentsch@users.noreply.github.com>
60 lines
6.5 KiB
Markdown
60 lines
6.5 KiB
Markdown
# Kyber
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- **Algorithm type**: Key encapsulation mechanism.
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- **Main cryptographic assumption**: Module LWE+R with base ring Z[x]/(3329, x^256+1).
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- **Principal submitters**: Peter Schwabe.
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- **Auxiliary submitters**: Roberto Avanzi, Joppe Bos, Léo Ducas, Eike Kiltz, Tancrède Lepoint, Vadim Lyubashevsky, John M. Schanck, Gregor Seiler, Damien Stehlé.
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- **Authors' website**: https://pq-crystals.org/
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- **Specification version**: NIST Round 3 submission.
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- **Primary Source**<a name="primary-source"></a>:
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- **Source**: https://github.com/pq-crystals/kyber/commit/518de2414a85052bb91349bcbcc347f391292d5b with copy_from_upstream patches
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- **Implementation license (SPDX-Identifier)**: CC0-1.0 or Apache-2.0
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- **Optimized Implementation sources**: https://github.com/pq-crystals/kyber/commit/518de2414a85052bb91349bcbcc347f391292d5b with copy_from_upstream patches
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- **pqclean-aarch64**:<a name="pqclean-aarch64"></a>
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- **Source**: https://github.com/PQClean/PQClean/commit/c1b19a865de329e87e9b3e9152362fcb709da8ab with copy_from_upstream patches
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- **Implementation license (SPDX-Identifier)**: CC0-1.0
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## Parameter set summary
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| Parameter set | Security model | Claimed NIST Level | Public key size (bytes) | Secret key size (bytes) | Ciphertext size (bytes) | Shared secret size (bytes) |
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|:---------------:|:-----------------|---------------------:|--------------------------:|--------------------------:|--------------------------:|-----------------------------:|
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| Kyber512 | IND-CCA2 | 1 | 800 | 1632 | 768 | 32 |
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| Kyber768 | IND-CCA2 | 3 | 1184 | 2400 | 1088 | 32 |
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| Kyber1024 | IND-CCA2 | 5 | 1568 | 3168 | 1568 | 32 |
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## Kyber512 implementation characteristics
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| 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?‡ |
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|:-----------------------------------:|:-------------------------|:----------------------------|:--------------------------------|:------------------------|:-----------------------------------|:-----------------------------------------------|:----------------------|
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| [Primary Source](#primary-source) | ref | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | avx2 | x86\_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
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| [pqclean-aarch64](#pqclean-aarch64) | aarch64 | ARM64\_V8 | Linux,Darwin | None | True | False | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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‡For an explanation of what this denotes, consult the [Explanation of Terms](#explanation-of-terms) section at the end of this file.
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## Kyber768 implementation characteristics
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| 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? |
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|:-----------------------------------:|:-------------------------|:----------------------------|:--------------------------------|:------------------------|:-----------------------------------|:-----------------------------------------------|:---------------------|
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| [Primary Source](#primary-source) | ref | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | avx2 | x86\_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
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| [pqclean-aarch64](#pqclean-aarch64) | aarch64 | ARM64\_V8 | Linux,Darwin | None | True | False | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Kyber1024 implementation characteristics
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| 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? |
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|:-----------------------------------:|:-------------------------|:----------------------------|:--------------------------------|:------------------------|:-----------------------------------|:-----------------------------------------------|:---------------------|
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| [Primary Source](#primary-source) | ref | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | avx2 | x86\_64 | Linux,Darwin | AVX2,BMI2,POPCNT | True | True | False |
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| [pqclean-aarch64](#pqclean-aarch64) | aarch64 | ARM64\_V8 | Linux,Darwin | None | True | False | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Explanation of Terms
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- **Large Stack Usage**: Implementations identified as having such may cause failures when running in threads or in constrained environments. |