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
|
// Copyright 2018 Google LLC. All Rights Reserved.
//
// 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 ctpolicy
import (
"github.com/google/certificate-transparency-go/loglist3"
"github.com/google/certificate-transparency-go/x509"
)
// ChromeCTPolicy implements logic for complying with Chrome's CT log policy
type ChromeCTPolicy struct {
}
// LogsByGroup describes submission requirements for embedded SCTs according to
// https://github.com/chromium/ct-policy/blob/master/ct_policy.md#qualifying-certificate.
// Returns an error if it's not possible to satisfy the policy with the provided loglist.
func (chromeP ChromeCTPolicy) LogsByGroup(cert *x509.Certificate, approved *loglist3.LogList) (LogPolicyData, error) {
googGroup := LogGroupInfo{Name: "Google-operated", IsBase: false}
googGroup.populate(approved, func(op *loglist3.Operator) bool { return op.GoogleOperated() })
if err := googGroup.setMinInclusions(1); err != nil {
return nil, err
}
nonGoogGroup := LogGroupInfo{Name: "Non-Google-operated", IsBase: false}
nonGoogGroup.populate(approved, func(op *loglist3.Operator) bool { return !op.GoogleOperated() })
if err := nonGoogGroup.setMinInclusions(1); err != nil {
return nil, err
}
var incCount int
switch m := lifetimeInMonths(cert); {
case m < 15:
incCount = 2
case m <= 27:
incCount = 3
case m <= 39:
incCount = 4
default:
incCount = 5
}
baseGroup, err := BaseGroupFor(approved, incCount)
if err != nil {
return nil, err
}
groups := LogPolicyData{
googGroup.Name: &googGroup,
nonGoogGroup.Name: &nonGoogGroup,
baseGroup.Name: baseGroup,
}
return groups, nil
}
// Name returns label for the submission policy.
func (chromeP ChromeCTPolicy) Name() string {
return "Chrome"
}
|
