Google has released Credentio, an open source C++ library for working with C2PA (Coalition for Content Provenance and Authenticity) Content Credentials. The library helps developers create, read, and verify content credentials, which are cryptographic metadata that capture the provenance and history of digital content.
What are Content Credentials?
Content Credentials are a standard for attaching verifiable metadata to digital content. They can include information about who created the content, when it was created, what edits were made, and whether AI was used in its production. This helps combat misinformation and provides transparency about the origins of digital media.
The C2PA standard is backed by a coalition of companies including Adobe, Microsoft, Intel, and Google. It provides a technical framework for content provenance that can be used across the web.
What Credentio offers
The Credentio library provides a C++ implementation of the C2PA standard, making it easier for developers to integrate content credentials into their applications. Key features include:
- Creating credentials: Generate new content credentials for digital assets.
- Reading credentials: Extract and parse existing credentials from content.
- Verifying credentials: Validate the cryptographic signatures and trust chain of content credentials.
- Manipulating manifests: Work with the structured data that defines content provenance.
Why it matters
As AI-generated content becomes more prevalent, the ability to verify the provenance of digital media is increasingly important. Content Credentials provide a way to distinguish between human-created and AI-generated content, track edits, and establish trust.
By open-sourcing Credentio, Google is making it easier for developers to adopt the C2PA standard and build applications that support content provenance. The library is designed to be efficient and portable, suitable for use in a wide range of environments.
Getting started
The Credentio library is available on GitHub under an open source license. Developers can integrate it into their C++ projects to add support for C2PA Content Credentials. The project includes documentation, examples, and a test suite to help developers get started.
This release is a significant step toward widespread adoption of content provenance standards, helping to build a more transparent and trustworthy digital ecosystem.