package gost3410
import (
- "errors"
"math/big"
"cypherpunks.ru/gogost/gost34112012256"
// RFC 7836 VKO GOST R 34.10-2012 256-bit key agreement function.
// UKM is user keying material, also called VKO-factor.
func (prv *PrivateKey) KEK2012256(pub *PublicKey, ukm *big.Int) ([]byte, error) {
- if prv.Mode != Mode2012 {
- return nil, errors.New("KEK2012 can not be used in Mode2001")
- }
key, err := prv.KEK(pub, ukm)
if err != nil {
return nil, err
// RFC 7836 VKO GOST R 34.10-2012 512-bit key agreement function.
// UKM is user keying material, also called VKO-factor.
func (prv *PrivateKey) KEK2012512(pub *PublicKey, ukm *big.Int) ([]byte, error) {
- if prv.Mode != Mode2012 {
- return nil, errors.New("KEK2012 can not be used in Mode2001")
- }
key, err := prv.KEK(pub, ukm)
if err != nil {
return nil, err