2 GoVPN -- simple secure free software virtual private network daemon
3 Copyright (C) 2014-2016 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 // Verifier generator and validator for GoVPN VPN daemon.
29 "cypherpunks.ru/govpn"
33 keyPath = flag.String("key", "", "Path to passphrase file")
34 verifier = flag.String("verifier", "", "Optional verifier")
35 mOpt = flag.Int("m", govpn.DefaultM, "Argon2d memory parameter (KiBs)")
36 tOpt = flag.Int("t", govpn.DefaultT, "Argon2d iteration parameter")
37 pOpt = flag.Int("p", govpn.DefaultP, "Argon2d parallelizm parameter")
38 egdPath = flag.String("egd", "", "Optional path to EGD socket")
39 warranty = flag.Bool("warranty", false, "Print warranty information")
45 fmt.Println(govpn.Warranty)
49 govpn.EGDInit(*egdPath)
51 key, err := govpn.KeyRead(*keyPath)
53 log.Fatalln("Unable to read the key", err)
56 id := new([govpn.IDSize]byte)
57 if _, err = io.ReadFull(govpn.Rand, id[:]); err != nil {
60 pid := govpn.PeerId(*id)
61 v := govpn.VerifierNew(*mOpt, *tOpt, *pOpt, &pid)
63 fmt.Println(v.LongForm())
64 fmt.Println(v.ShortForm())
67 v, err := govpn.VerifierFromString(*verifier)
69 log.Fatalln("Can not decode verifier", err)
72 log.Fatalln("Verifier does not contain public key")
76 fmt.Println(bytes.Equal(v.Pub[:], pub[:]))