EdKey

Ed25519 signing key that implements ISigningKey.

Detailed description

EdKey generates Ed25519 key pairs, signs and verifies, and encrypts with a hybrid scheme: an ephemeral X25519 key agreement followed by XChaCha20-Poly1305. The key is two raw byte arrays, so the class needs no private implementation object. The destructor overwrites the secret key with zeros.

The key ID is the SHA-256 hash of the raw public key, as upper-case hex. An EdKey reads and writes PEM-like text with ED25519 PUBLIC KEY and ED25519 PRIVATE KEY labels, and can also be built from raw key bytes, for example from a BIP39 derivation.

Ed25519 is the default algorithm. Callers normally get an EdKey from KeyFactory, which chooses EdKey when the PEM text names Ed25519.

See also ISigningKey, RSAKey, KeyFactory.