c2pa_flutter 0.1.0

Combined read/write C2PA Flutter plugin with manifest signing and certificate management. Uses the official c2pa-rs Rust library via FFI.

0.1.0

Initial release with combined read/write C2PA support.

Features

• Read C2PA manifests from JPEG, PNG, TIFF, WebP, and DNG files.
• Build manifests with the fluent ManifestBuilder API.
• 40+ action factories via C2paActions covering the full C2PA and CAWG vocabulary.
• Sign manifests using PEM keys (FileSigner) or platform keystores (PlatformSigner).
• iOS Keychain and Android Keystore signing support.
• AI/ML content tracking with DigitalSourceType and training-mining assertions.
• Domain entities for Manifest, ManifestStore, Action, Ingredient, SignatureInfo, and more.
• Full C2PA exception hierarchy for structured error handling.

Powered by

• c2pa-rs v0.75 via Flutter Rust Bridge v2.11.1.
• Supports both c2pa.actions (v1) and c2pa.actions.v2 assertion labels.
• Handles claim_generator (string) and claim_generator_info (array) JSON formats.

Example App

• Read tab with 5 bundled C2PA test images demonstrating different manifest structures.
• Write tab with end-to-end signing, brightness editing, and re-signing with tracked actions.
• Cross-tab "Load Last Signed Image" for verifying signed images on the Read tab.