//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
+// the Free Software Foundation, version 3 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
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