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123 lines
15 KiB
Markdown
123 lines
15 KiB
Markdown
# Classic McEliece
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- **Algorithm type**: Key encapsulation mechanism.
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- **Main cryptographic assumption**: Niederreiter's dual version of McEliece's public key encryption using binary Goppa codes.
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- **Principal submitters**: Daniel J. Bernstein, Tung Chou, Tanja Lange, Ingo von Maurich, Rafael Misoczki, Ruben Niederhagen, Edoardo Persichetti, Christiane Peters, Peter Schwabe, Nicolas Sendrier, Jakub Szefer, Wen Wang.
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- **Authors' website**: https://classic.mceliece.org
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- **Specification version**: SUPERCOP-20191221.
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- **Primary Source**<a name="primary-source"></a>:
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- **Source**: https://github.com/PQClean/PQClean/commit/6a32796212b79a5f9126d0a933e1216313f50c16
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- **Implementation license (SPDX-Identifier)**: Public domain
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, which takes it from:
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- SUPERCOP-20191221 "vec" and "avx" implementations
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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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| Classic-McEliece-348864 | IND-CCA2 | 1 | 261120 | 6452 | 128 | 32 |
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| Classic-McEliece-348864f | IND-CCA2 | 1 | 261120 | 6452 | 128 | 32 |
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| Classic-McEliece-460896 | IND-CCA2 | 3 | 524160 | 13568 | 188 | 32 |
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| Classic-McEliece-460896f | IND-CCA2 | 3 | 524160 | 13568 | 188 | 32 |
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| Classic-McEliece-6688128 | IND-CCA2 | 5 | 1044992 | 13892 | 240 | 32 |
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| Classic-McEliece-6688128f | IND-CCA2 | 5 | 1044992 | 13892 | 240 | 32 |
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| Classic-McEliece-6960119 | IND-CCA2 | 5 | 1047319 | 13908 | 226 | 32 |
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| Classic-McEliece-6960119f | IND-CCA2 | 5 | 1047319 | 13908 | 226 | 32 |
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| Classic-McEliece-8192128 | IND-CCA2 | 5 | 1357824 | 14080 | 240 | 32 |
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| Classic-McEliece-8192128f | IND-CCA2 | 5 | 1357824 | 14080 | 240 | 32 |
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## Classic-McEliece-348864 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT | False | True | True |
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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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## Classic-McEliece-348864f 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT,BMI1 | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-460896 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-460896f 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,BMI1,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-6688128 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-6688128f 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,BMI1,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-6960119 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-6960119f 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,BMI1,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-8192128 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT | False | True | True |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## Classic-McEliece-8192128f 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) | vec | All | All | None | True | True | True |
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| [Primary Source](#primary-source) | avx | x86\_64 | Linux,Darwin | AVX2,POPCNT,BMI1 | False | True | True |
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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. |