decapsulation key dk to retrieve the same shared secret K. The PCT passes if // the two shared secret K values are equal. The PCT shall be performed either // when keys are generated/imported, prior to the first exportation, or prior to // the first operational use (if not exported before the first use)." func kemPCT1024(dk *DecapsulationKey1024) error { ek := dk.EncapsulationKey() K, c := ek.Encapsulate() K1, err := dk.Decapsulate(c) if err != nil { return err } if subtle.ConstantTimeCompare(K, K1) !=...