@techreport{chen-tls-composite-fndsa-00, number = {draft-chen-tls-composite-fndsa-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-chen-tls-composite-fndsa/00/}, author = {Meiling Chen and Xueyan Song}, title = {{Use of Composite FN-DSA Signatures in TLS 1.3}}, pagetotal = 8, year = 2026, month = may, day = 12, abstract = {Compositing the post-quantum FN-DSA signature with traditional signature algorithms provides protection against potential breaks in either component. This document specifies how such a composite signature can be used for authentication in TLS 1.3. The selection of composite algorithms is intentionally chosen to strictly mirror the composite strategies for ML-DSA. This alignment provides two distinct and predictable security tiers for hybrid signatures, ensuring a consistent approach to post-quantum transition across the ecosystem.}, }