1 // GoGOST -- Pure Go GOST cryptographic functions library
2 // Copyright (C) 2015-2020 Sergey Matveev <stargrave@stargrave.org>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, version 3 of the License.
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program. If not, see <http://www.gnu.org/licenses/>.
16 // PRF_IPSEC_PRFPLUS_GOSTR3411_2012_{256,512} as defined in R 50.1.113-2016.
23 "go.cypherpunks.ru/gogost/v4/gost34112012256"
24 "go.cypherpunks.ru/gogost/v4/gost34112012512"
27 type PRFIPsecPRFPlusGOSTR34112012 struct{ h hash.Hash }
29 func NewPRFIPsecPRFPlusGOSTR34112012256(key []byte) PRFForPlus {
30 return PRFIPsecPRFPlusGOSTR34112012{hmac.New(gost34112012256.New, key)}
33 func NewPRFIPsecPRFPlusGOSTR34112012512(key []byte) PRFForPlus {
34 return PRFIPsecPRFPlusGOSTR34112012{hmac.New(gost34112012512.New, key)}
37 func (prf PRFIPsecPRFPlusGOSTR34112012) BlockSize() int {
41 func (prf PRFIPsecPRFPlusGOSTR34112012) Derive(salt []byte) []byte {
42 if _, err := prf.h.Write(salt); err != nil {