2 tofuproxy -- flexible HTTP/HTTPS proxy, TLS terminator, X.509 TOFU
3 manager, WARC/geminispace browser
4 Copyright (C) 2021-2022 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/>.
35 cert *x509.Certificate
40 hostCerts = make(map[string]*Keypair)
47 max = max.SetBit(max, 128, 1)
49 Serial, err = rand.Int(rand.Reader, max)
57 caCert *x509.Certificate,
58 caPrv crypto.PrivateKey,
60 prv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
65 notBefore := time.Now()
66 notAfter := notBefore.Add(24 * time.Hour)
67 Serial = Serial.Add(Serial, big.NewInt(1))
68 template := x509.Certificate{
70 Subject: pkix.Name{CommonName: host},
71 DNSNames: []string{host},
75 certRaw, err := x509.CreateCertificate(
76 rand.Reader, &template, caCert, pub, caPrv,
81 cert, err := x509.ParseCertificate(certRaw)
85 return &Keypair{cert, prv}