cryptography
Hybrid Post-Quantum Signatures in Hardware Security Keys
Hybrid Post-Quantum Signatures in Hardware Security Keys
Publication ACNS 2023
We introduce a hybrid digital signature scheme based on two building blocks: a classically-secure scheme, ECDSA, and a post-quantum secure one, Dilithium. Our hybrid scheme maintains the guarantees of each underlying building block even if the other one is broken, thus being resistant to classical and quantum attacks.
