The Fireblocks cryptography research team found a complete forgery in a post-quantum signature candidate: a valid signature for any message can be constructed from the public key alone in a fraction of a second on a laptop. The scheme is Shipovnik, a post quantum signature candidate in TC26, Russia’s technical committee for cryptography. If it […] The post Complete Forgery of a Post-Quantum Signature Candidate: Shipovnik appeared first on Fireblocks .