Anthropic-Cybersecurity-Skills/skills/implementing-digital-signatures-with-ed25519/references/standards.md

Standards and References - Digital Signatures with Ed25519

Primary Standards

RFC 8032 - Edwards-Curve Digital Signature Algorithm (EdDSA)

• URL: https://www.rfc-editor.org/rfc/rfc8032
• Description: Defines Ed25519 and Ed448 signature algorithms

RFC 8709 - Ed25519 and Ed448 Public Key Algorithms for SSH

• URL: https://www.rfc-editor.org/rfc/rfc8709
• Description: SSH key format for Ed25519

NIST FIPS 186-5 - Digital Signature Standard

• URL: https://csrc.nist.gov/publications/detail/fips/186/5/final
• Description: Includes EdDSA as approved signature algorithm

RFC 7748 - Elliptic Curves for Security

• URL: https://www.rfc-editor.org/rfc/rfc7748
• Description: Defines Curve25519 and Curve448

Python Libraries

cryptography (pyca/cryptography)

• Ed25519: cryptography.hazmat.primitives.asymmetric.ed25519
• Docs: https://cryptography.io/en/latest/hazmat/primitives/asymmetric/ed25519/

PyNaCl (libsodium)

• URL: https://pynacl.readthedocs.io/
• Ed25519: nacl.signing
• Docs: https://pynacl.readthedocs.io/en/latest/signing/

Related

Daniel J. Bernstein et al. - High-speed high-security signatures

• URL: https://ed25519.cr.yp.to/
• Description: Original Ed25519 paper and reference implementation