challauth

Authentication scheme library which contains:

• Challenge based authentication with responses generated by HMAC-SHA-256,
• Access tokens validation, which contain expiration date and Ascon128 encrypted secret credential. Both expiration date and encrypted content is signed with Ed25519 signature.

Purpose

Library is made especially for LibreKeeper password manager project.

License

Library and challauth's token creation and validation scheme is licensed under the terms of MIT license