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82 lines
9.5 KiB
Markdown
82 lines
9.5 KiB
Markdown
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# FrodoKEM
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- **Algorithm type**: Key encapsulation mechanism.
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- **Main cryptographic assumption**: learning with errors (LWE).
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- **Principal submitters**: Michael Naehrig, Erdem Alkim, Joppe Bos, Léo Ducas, Karen Easterbrook, Brian LaMacchia, Patrick Longa, Ilya Mironov, Valeria Nikolaenko, Christopher Peikert, Ananth Raghunathan, Douglas Stebila.
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- **Authors' website**: https://frodokem.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/microsoft/PQCrypto-LWEKE/commit/b6609d30a9982318d7f2937aa3c7b92147b917a2
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- **Implementation license (SPDX-Identifier)**: MIT
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## Parameter set summary
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| 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) |
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|:-------------------:|:----------------------|:-----------------|---------------------:|--------------------------:|--------------------------:|--------------------------:|-----------------------------:|
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| FrodoKEM-640-AES | NA | IND-CCA2 | 1 | 9616 | 19888 | 9720 | 16 |
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| FrodoKEM-640-SHAKE | NA | IND-CCA2 | 1 | 9616 | 19888 | 9720 | 16 |
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| FrodoKEM-976-AES | NA | IND-CCA2 | 3 | 15632 | 31296 | 15744 | 24 |
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| FrodoKEM-976-SHAKE | NA | IND-CCA2 | 3 | 15632 | 31296 | 15744 | 24 |
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| FrodoKEM-1344-AES | NA | IND-CCA2 | 5 | 21520 | 43088 | 21632 | 32 |
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| FrodoKEM-1344-SHAKE | NA | IND-CCA2 | 5 | 21520 | 43088 | 21632 | 32 |
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## FrodoKEM-640-AES 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | 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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## FrodoKEM-640-SHAKE 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## FrodoKEM-976-AES 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## FrodoKEM-976-SHAKE 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## FrodoKEM-1344-AES 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | False |
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Are implementations chosen based on runtime CPU feature detection? **Yes**.
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## FrodoKEM-1344-SHAKE 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) | master | All | All | None | True | True | False |
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| [Primary Source](#primary-source) | master | x86\_64 | Linux,Darwin,Windows | AVX2 | True | True | 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.
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