oxo-dual-licenser

Generic dual-license runtime verification library for Traitome Rust projects.

oxo-dual-licenser provides an Ed25519-based license verification system that can be embedded into any Rust application. It consists of two crates:

• oxo-license — embeddable library for runtime license verification
• oxo-license-issuer — CLI tool for generating key pairs and issuing licenses

Features

• Any license types — strings like "academic", "commercial", "enterprise"
• Offline verification — no network calls at runtime
• Configurable discovery — env vars, platform config dirs, CLI args
• Shared key infrastructure — one key pair per organization
• oxo-call compatible — can issue licenses for oxo-call

Quick Links

• Installation
• Quickstart
• Issue a License
• API Reference

Compatibility with oxo-call

This library is designed as a generalization of the license system from oxo-call. It can:

1. Verify oxo-call licenses — Pass the oxo-call public key and schema
2. Issue oxo-call licenses — Use the same private key to sign licenses
3. Replace oxo-call's license module — Configure LicenseConfig with oxo-call parameters

oxo-call Configuration Example

use oxo_license::LicenseConfig;

pub static OXO_CALL_CONFIG: LicenseConfig = LicenseConfig {
    schema_version: "oxo-call-license-v1",
    public_key_base64: "SOTbyPWS8fSF+XS9dqEg9cFyag0wPO/YMA5LhI4PXw4=",
    license_env_var: "OXO_CALL_LICENSE",
    app_qualifier: "io",
    app_org: "traitome",
    app_name: "oxo-call",
    license_filename: "license.oxo.json",
};