Supersingular isogeny key exchange
POST-QUANTUM CRYPTOGRAPHIC ALGORITHM
Draft:Supersingular Isogeny Key Exchange; Supersingular Isogeny Key Exchange; SIDH; SIKE; Supersingular isogeny Diffie–Hellman key exchange; Supersingular isogeny Diffie-Hellman key exchange
Supersingular isogeny Diffie–Hellman key exchange (SIDH) is an insecure proposal for a post-quantum cryptographic algorithm to establish a secret key between two parties over an untrusted communications channel. It is analogous to the Diffie–Hellman key exchange, but is based on walks in a supersingular isogeny graph and was designed to resist cryptanalytic attack by an adversary in possession of a quantum computer.