A late-stage candidate encryption algorithm that was meant to withstand decryption by powerful quantum computers in the future has been trivially cracked by using a computer running Intel Xeon CPU in an hour's time.
The algorithm in question is SIKE β short for Supersingular Isogeny Key Encapsulation β which made it to theΒ fourth roundΒ of the Post-Quantum Cryptography (PQC) standardization