cpop-protocol 0.2.0

Wire format, CBOR/COSE codec, and evidence builder for CPoP

Part of the Cryptographic Proof of Process (CPoP) specification — an LF Decentralized Trust Lab

Overview

cpop-protocol is the reference implementation of the CPoP wire format as defined in draft-condrey-cpop-protocol. It provides the types, codec, and cryptographic logic needed to build and verify CPoP Evidence Packets and Writers Authenticity Reports.

Quick Start

[dependencies]
cpop-protocol = "0.1"

use cpop_protocol::evidence::{Builder, Verifier};
use cpop_protocol::rfc::DocumentRef;
use ed25519_dalek::SigningKey;
use rand::rngs::OsRng;

// Create a document reference
let document = DocumentRef::new("doc.txt", b"document content");

// Build evidence
let signing_key = SigningKey::generate(&mut OsRng);
let mut builder = Builder::new(document, Box::new(signing_key)).unwrap();
builder.add_checkpoint(b"first edit").unwrap();
let (packet, raw) = builder.finalize().unwrap();

// Verify evidence
let verifier = Verifier::new(signing_key.verifying_key());
assert!(verifier.verify(&packet, &raw).is_ok());

Modules

Features

Contributing

See CONTRIBUTING.md for DCO sign-off requirements and contribution workflow.

License

Apache License, Version 2.0. See LICENSE.

Part of the proof-of-process repository.