Hybrid key exchange in TLS 1.3 or SSH
Draft-stebila-tls-hybrid-design-01
Motivation of hybrid key exchange
- tranditional algorithms: have risks in face of quantum computers and cryptanalytic advances
- next-generation algorithms: have less confidence in security (due to less studies)
Prototyping post-quantum and hybrid key exchange and authentication in TLS and SSH
hybrid key exchange and hybrid signatures
1.Key Exchange is listed above. 2.Authentication：
extension signature_algorithms_cert and signatur_algorithms
both algorithms should sign the same message.
Sign1(msg) ||Sign2(msg)
Conclusion
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