Ed25519 and EdDSA (RFC 8032)

1. EdDSA overview

   Twisted Edwards curve signatures with deterministic nonces.

2. Ed25519 key generation

   Secret scalar and public key derivation.

3. Ed25519 signing

   Deterministic signature generation.

4. Ed25519 verification

   Verification equation and cofactor handling.

5. Ed25519ph and contexts

   Pre-hashed and contextualized variants.

6. Security considerations

   Side channels, malleability and small-order points.

7. Algorithm identifiers for X.509

   OIDs for Ed25519 and X25519 in certificates.

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