forked from scionproto/scion
-
Notifications
You must be signed in to change notification settings - Fork 1
/
verify.go
75 lines (69 loc) · 2.12 KB
/
verify.go
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
// Copyright 2018 ETH Zurich
//
// 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 certs
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"github.com/scionproto/scion/go/lib/addr"
"github.com/scionproto/scion/go/lib/scrypto"
"github.com/scionproto/scion/go/lib/scrypto/cert"
"github.com/scionproto/scion/go/lib/scrypto/trc"
"github.com/scionproto/scion/go/tools/scion-pki/internal/pkicmn"
)
func runVerify(args []string) {
exitStatus := 0
for _, certPath := range args {
// Load file.
raw, err := ioutil.ReadFile(certPath)
if err != nil {
fmt.Fprintf(os.Stderr, "Error reading %s: %s\n", certPath, err)
continue
}
chain, err := cert.ChainFromRaw(raw, false)
if err != nil {
fmt.Fprintf(os.Stderr, "Error parsing chain: %s\n", err)
continue
}
if err = verifyChain(chain, chain.Leaf.Subject); err != nil {
pkicmn.QuietPrint("Verification of %s FAILED. Reason: %s\n", certPath, err)
exitStatus = 2
continue
}
pkicmn.QuietPrint("Verification of %s SUCCEEDED.\n", certPath)
}
os.Exit(exitStatus)
}
func verifyChain(chain *cert.Chain, subject addr.IA) error {
// Load corresponding TRC.
t, err := loadTRC(subject, chain.Leaf.TRCVersion)
if err != nil {
return err
}
return chain.Verify(subject, t)
}
func loadTRC(subject addr.IA, version scrypto.Version) (*trc.TRC, error) {
fname := fmt.Sprintf(pkicmn.TrcNameFmt, subject.I, version)
trcPath := filepath.Join(pkicmn.GetIsdPath(pkicmn.OutDir, subject.I), pkicmn.TRCsDir, fname)
trcRaw, err := ioutil.ReadFile(trcPath)
if err != nil {
return nil, err
}
t, err := trc.TRCFromRaw(trcRaw, false)
if err != nil {
return nil, err
}
return t, nil
}