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https://github.com/C2SP/C2SP

Community Cryptography Specification Project
https://github.com/C2SP/C2SP

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Community Cryptography Specification Project

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README 

        
# The Community Cryptography Specification Project



The Community Cryptography Specification Project (C2SP) is a project that

facilitates the maintenance of cryptography specifications using software

development methodologies. In other words, C2SP applies the successful processes

of open source software development and maintenance to specification documents.



* C2SP decisions are **not based on consensus**. Instead, each spec is developed

  by its [maintainers], who are responsible for reviewing and accepting changes,

  just like open source projects. This enables rapid, focused, and opinionated

  development. Since C2SP produces **specifications, not standards**, technical

  disagreements can be ultimately be resolved by forking.

* C2SP specs are **updateable**, and follow [semantic versioning]. Most

  specifications are expected to start at v0.x.x while in “draft” stage, then

  stay at v1.x.x for as long as they maintain backwards compatibility, ideally

  forever. Drafts are expected to bump the minor version on breaking changes.

* C2SP documents are developed as Markdown files on GitHub, and can include

  ancillary files such as test vectors and non-production reference

  implementations.



A [small team of stewards] maintains the overall project, enforces the [C2SP

Code of Conduct], assigns [new specifications] to proposed maintainers, and may

intervene in case of maintainer conflict or to replace lapsed maintainers, but

they are otherwise not involved in the development of individual specs (in their

steward capacity).



Versions are tracked as git tags of the form `/vX.Y.Z` like

`age/v1.2.3`.



Specifications should be linked using their c2sp.org short-links.

`https://c2sp.org/` and `https://c2sp.org/@` are

supported. (The former currently redirects to the specification in the main

branch, this may change in the future to the latest tagged version of the spec.)

GitHub URLs should not be considered stable.



All C2SP specifications are licensed under [CC BY

4.0](https://creativecommons.org/licenses/by/4.0/). All code and data in this

repository is licensed under the BSD 1-Clause License ([LICENSE-BSD-1-CLAUSE]).



[maintainers]: https://github.com/orgs/C2SP/teams/maintainers

[semantic versioning]: https://semver.org/

[small team of stewards]: https://github.com/orgs/C2SP/teams/stewards

[C2SP Code of Conduct]: CODE_OF_CONDUCT.md

[new specifications]: CONTRIBUTING.md#new-specifications

[LICENSE-BSD-1-CLAUSE]: LICENSE-BSD-1-CLAUSE



## Specifications



| Name | Description |  |

| --- | --- | --- |

| [`c2sp.org/age`](https://c2sp.org/age) | File encryption format | [Maintainers](https://github.com/orgs/C2SP/teams/age) |

| [`c2sp.org/age-plugin`](https://c2sp.org/age-plugin) | The age plugin stdio protocol | [Maintainers](https://github.com/orgs/C2SP/teams/age-plugin) |

| [`c2sp.org/BLAKE3`](https://c2sp.org/BLAKE3) | A fast cryptographic hash function (and PRF, MAC, KDF, and XOF) | [Maintainers](https://github.com/orgs/C2SP/teams/BLAKE3) |

| [`c2sp.org/chacha8rand`](https://c2sp.org/chacha8rand) | Fast cryptographic random number generator | [Maintainers](https://github.com/orgs/C2SP/teams/chacha8rand) |

| [`c2sp.org/https-bastion`](https://c2sp.org/https-bastion) | Bastion (reverse proxy) protocol for exposing HTTPS services | [Maintainers](https://github.com/orgs/C2SP/teams/https-bastion) |

| [`c2sp.org/jq255`](https://c2sp.org/jq255) | Prime order groups, key exchange, and signatures | [Maintainers](https://github.com/orgs/C2SP/teams/jq255) |

| [`c2sp.org/signed-note`](https://c2sp.org/signed-note) | Cleartext signed messages | [Maintainers](https://github.com/orgs/C2SP/teams/signed-note) |

| [`c2sp.org/static-ct-api`](https://c2sp.org/static-ct-api) | Static asset-based Certificate Transparency logs | [Maintainers](https://github.com/orgs/C2SP/teams/static-ct-api) |

| [`c2sp.org/tlog-checkpoint`](https://c2sp.org/tlog-checkpoint) | Interoperable transparency log signed tree heads | [Maintainers](https://github.com/orgs/C2SP/teams/tlog-checkpoint) |

| [`c2sp.org/tlog-cosignature`](https://c2sp.org/tlog-cosignature) | Witness cosignatures for transparency log checkpoints | [Maintainers](https://github.com/orgs/C2SP/teams/tlog-cosignature) |

| [`c2sp.org/tlog-tiles`](https://c2sp.org/tlog-tiles) | Static asset-based transparency log | [Maintainers](https://github.com/orgs/C2SP/teams/tlog-tiles) |

| [`c2sp.org/tlog-witness`](https://c2sp.org/tlog-witness) | HTTP protocol to obtain transparency log witness cosignatures | [Maintainers](https://github.com/orgs/C2SP/teams/tlog-witness) |

| [`c2sp.org/vrf-r255`](https://c2sp.org/vrf-r255) | Simplified ristretto255-based ECVRF ciphersuite | [Maintainers](https://github.com/orgs/C2SP/teams/vrf-r255) |

| [`c2sp.org/XAES-256-GCM`](https://c2sp.org/XAES-256-GCM) | Extended-nonce AEAD from NIST-approved components | [Maintainers](https://github.com/orgs/C2SP/teams/XAES-256-GCM) |



## Associated projects



The C2SP organization hosts three other testing-focused projects:



* [**Wycheproof**](https://github.com/C2SP/wycheproof), a large library of tests

  for cryptographic libraries against known attacks.



* [**CCTV**](https://github.com/C2SP/CCTV), the Community Cryptography Test

  Vectors, a repository of reusable test vectors.



* [**x509-limbo**](https://github.com/C2SP/x509-limbo), a suite of tests for

  X.509 certificate path validation.