1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
// Copyright 2022 The Sigstore Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ca
import (
"crypto/x509"
"strings"
"github.com/sigstore/sigstore/pkg/cryptoutils"
)
type CodeSigningCertificate struct {
FinalCertificate *x509.Certificate
FinalChain []*x509.Certificate
finalPEM string
finalChainPEM []string
}
func CreateCSCFromPEM(cert string, chain []string) (*CodeSigningCertificate, error) {
var c CodeSigningCertificate
// convert to X509 and store both formats
finalCert, err := cryptoutils.UnmarshalCertificatesFromPEM([]byte(cert))
if err != nil {
return nil, err
}
c.finalPEM = strings.TrimSpace(cert)
c.FinalCertificate = finalCert[0]
// convert to X509 and store both formats
chainBytes := []byte(strings.Join(chain, ""))
if len(chainBytes) != 0 {
c.FinalChain, err = cryptoutils.UnmarshalCertificatesFromPEM(chainBytes)
if err != nil {
return nil, err
}
for _, cert := range chain {
c.finalChainPEM = append(c.finalChainPEM, strings.TrimSpace(cert))
}
}
return &c, nil
}
func CreateCSCFromDER(cert []byte, chain []*x509.Certificate) (*CodeSigningCertificate, error) {
var (
c CodeSigningCertificate
err error
)
// convert to X509 and store both formats
c.finalPEM = strings.TrimSpace(string(cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, cert)))
c.FinalCertificate, err = x509.ParseCertificate(cert)
if err != nil {
return nil, err
}
// convert to X509 and store both formats
c.FinalChain = chain
if err != nil {
return nil, err
}
for _, chainCert := range c.FinalChain {
c.finalChainPEM = append(c.finalChainPEM, strings.TrimSpace(string(cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, chainCert.Raw))))
}
return &c, nil
}
func (c *CodeSigningCertificate) CertPEM() (string, error) {
var err error
if c.finalPEM == "" {
finalPemBytes, err := cryptoutils.MarshalCertificateToPEM(c.FinalCertificate)
if err == nil {
c.finalPEM = strings.TrimSpace(string(finalPemBytes))
}
}
return c.finalPEM, err
}
func (c *CodeSigningCertificate) ChainPEM() ([]string, error) {
if c.finalChainPEM == nil && len(c.FinalChain) > 0 {
for _, chainCert := range c.FinalChain {
c.finalChainPEM = append(c.finalChainPEM, strings.TrimSpace(string(cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, chainCert.Raw))))
}
}
return c.finalChainPEM, nil
}
|
