{
  "draft": "draft-ietf-pquip-hybrid-signature-spectrums-07",
  "doc_id": "RFC9955",
  "title": "Hybrid Signature Spectrums",
  "authors": [
    "N. Bindel",
    "B. Hale",
    "D. Connolly",
    "F. Driscoll"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "23",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Post-Quantum Use In Protocols",
  "abstract": "This document describes classification of design goals and security considerations for hybrid digital signature schemes, including proof composability, non-separability of the component signatures given a hybrid signature, backwards and forwards compatibility, hybrid generality, and Simultaneous Verification (SV).",
  "pub_date": "July 2026",
  "keywords": [
    "PQC",
    "cryptography"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9955",
  "errata_url": null
}