2 tofuproxy -- flexible HTTP/HTTPS proxy, TLS terminator, X.509 TOFU
3 manager, WARC/geminispace browser
4 Copyright (C) 2021-2023 Sergey Matveev <stargrave@stargrave.org>
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, version 3 of the License.
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/>.
34 cert *x509.Certificate
39 hostCerts = make(map[string]*Keypair)
46 max = max.SetBit(max, 128, 1)
48 Serial, err = rand.Int(rand.Reader, max)
56 caCert *x509.Certificate,
57 caPrv crypto.PrivateKey,
59 pub, prv, err := ed25519.GenerateKey(rand.Reader)
63 notBefore := time.Now()
64 notAfter := notBefore.Add(24 * time.Hour)
65 Serial = Serial.Add(Serial, big.NewInt(1))
66 template := x509.Certificate{
68 Subject: pkix.Name{CommonName: host},
69 DNSNames: []string{host},
73 certRaw, err := x509.CreateCertificate(
74 rand.Reader, &template, caCert, pub, caPrv,
79 cert, err := x509.ParseCertificate(certRaw)
83 return &Keypair{cert, prv}