A Ruby binding to the Ed25519 elliptic curve public-key signature system described in RFC 8032.

Ed25519 is a modern implementation of a Schnorr signature system using elliptic curve groups.

Ed25519 provides a 128-bit security level, that is to say, all known attacks take at least 2^128 operations, providing the same security level as AES-128, NIST P-256, and RSA-3072.