116 releases (49 breaking)
| 1.0.0 |
|
|---|---|
| 0.49.5 | Apr 28, 2025 |
| 0.48.2 | Mar 26, 2025 |
| 0.40.0 | Dec 12, 2024 |
| 0.0.1 | Mar 23, 2022 |
#62 in Cryptography
546,443 downloads per month
Used in 4 crates
2.5MB
44K
SLoC
C2PA Rust library
The Coalition for Content Provenance and Authenticity (C2PA) addresses the prevalence of misleading information online through the development of technical standards for certifying the source and history (or provenance) of media content. The C2PA Rust library is part of the Content Authenticity Initiative open-source SDK.
For the best experience, read the docs on the CAI Open Source SDK documentation website.
You can also read the documentation directly in GitHub:
Key features
The c2pa-rs repository implements a subset of the C2PA technical specification in the Rust programming language.
The library enables a desktop, mobile, or embedded application to:
- Create and sign C2PA claims and manifests.
- Embed manifests in supported file formats.
- Parse and validate manifests found in supported file formats.
The library supports several common C2PA assertions and hard bindings.
For details on what you can do with the library, see Using the Rust library.
State of the project
This is a beta release (version 0.x.x) of the project. The minor version number (0.x.0) is incremented when there are breaking API changes, which may happen frequently.
NOTE: The library now supports C2PA v2 claims, however development is still in progress and all features are not fully implemented yet. While you can experiment with this functionality, it is not recommended for production use at this time. For details, see C2PA v2 claims.
New API
NOTE: The current release includes a new API that replaces old methods of reading and writing C2PA data, which are deprecated. See the release notes for more information.
Rust language requirement (MSRV)
The c2pa crate requires Rust version 1.82.0 or newer. When a newer version of Rust becomes required, a new minor (0.x.0) version of this crate will be released.
Contributions and feedback
We welcome contributions to this project. For information on contributing, providing feedback, and about ongoing work, see Contributing. For additional information on nightly builds and testing, see Contributing to the project.
License
The c2pa crate is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
Some components and dependent crates are licensed under different terms; please check their licenses for details.
Dependencies
~34–53MB
~1M SLoC