{ "draft": "draft-ietf-openpgp-pqc-17", "doc_id": "RFC9980", "title": "Post-Quantum Cryptography in OpenPGP", "authors": [ "S. Kousidis", "J. Roth", "F. Strenzke", "A. Wussler" ], "format": [ "XML", "TEXT", "HTML", "PDF" ], "page_count": "222", "pub_status": "PROPOSED STANDARD", "status": "PROPOSED STANDARD", "source": "Open Specification for Pretty Good Privacy", "abstract": "This document defines a post-quantum public key algorithm extension for the OpenPGP protocol, extending RFC 9580. Given the generally assumed threat of a cryptographically relevant quantum computer, this extension provides a basis for long-term secure OpenPGP signatures and ciphertexts. Specifically, it defines composite public key encryption based on ML-KEM (formerly CRYSTALS-Kyber), composite public key signatures based on ML-DSA (formerly CRYSTALS-Dilithium), both in combination with Elliptic Curve Cryptography (ECC), and SLH-DSA (formerly SPHINCS+) as a standalone public key signature scheme.", "pub_date": "June 2026", "keywords": [ "pgp", "pqc", "encryption", "digital signature", "post-quantum" ], "obsoletes": [], "obsoleted_by": [], "updates": [], "updated_by": [], "see_also": [], "doi": "10.17487/RFC9980", "errata_url": "https://www.rfc-editor.org/errata/rfc9980" }