-
Notifications
You must be signed in to change notification settings - Fork 128
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
plumb through !cgo golang tags that removes pkcs11 support (#244)
Signed-off-by: Ville Aikas <vaikas@chainguard.dev>
- Loading branch information
Showing
7 changed files
with
165 additions
and
99 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| // Copyright 2021 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 x509ca | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto" | ||
| "crypto/rand" | ||
| "crypto/x509" | ||
| "crypto/x509/pkix" | ||
| "encoding/asn1" | ||
| "math/big" | ||
| "net/url" | ||
| "time" | ||
|
|
||
| "github.com/google/uuid" | ||
| "github.com/sigstore/fulcio/pkg/ca" | ||
| "github.com/sigstore/fulcio/pkg/challenges" | ||
| ) | ||
|
|
||
| type X509CA struct { | ||
| RootCA *x509.Certificate | ||
| PrivKey crypto.Signer | ||
| } | ||
|
|
||
| func (x *X509CA) CreateCertificate(_ context.Context, subject *challenges.ChallengeResult) (*ca.CodeSigningCertificate, error) { | ||
| return x.CreateCertificateWithCA(x, subject) | ||
| } | ||
|
|
||
| func (x *X509CA) CreateCertificateWithCA(certauth *X509CA, subject *challenges.ChallengeResult) (*ca.CodeSigningCertificate, error) { | ||
| // TODO: Track / increment serial nums instead, although unlikely we will create dupes, it could happen | ||
| uuid := uuid.New() | ||
| var serialNumber big.Int | ||
| serialNumber.SetBytes(uuid[:]) | ||
|
|
||
| cert := &x509.Certificate{ | ||
| SerialNumber: &serialNumber, | ||
| NotBefore: time.Now(), | ||
| NotAfter: time.Now().Add(time.Minute * 10), | ||
| SubjectKeyId: []byte{1, 2, 3, 4, 6}, | ||
| ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageCodeSigning}, | ||
| KeyUsage: x509.KeyUsageCertSign, | ||
| } | ||
| switch subject.TypeVal { | ||
| case challenges.EmailValue: | ||
| cert.EmailAddresses = []string{subject.Value} | ||
| case challenges.SpiffeValue: | ||
| challengeURL, err := url.Parse(subject.Value) | ||
| if err != nil { | ||
| return nil, ca.ValidationError(err) | ||
| } | ||
| cert.URIs = []*url.URL{challengeURL} | ||
| case challenges.GithubWorkflowValue: | ||
| jobWorkflowURI, err := url.Parse(subject.Value) | ||
| if err != nil { | ||
| return nil, ca.ValidationError(err) | ||
| } | ||
| cert.URIs = []*url.URL{jobWorkflowURI} | ||
| case challenges.KubernetesValue: | ||
| k8sURI, err := url.Parse(subject.Value) | ||
| if err != nil { | ||
| return nil, ca.ValidationError(err) | ||
| } | ||
| cert.URIs = []*url.URL{k8sURI} | ||
| } | ||
| cert.ExtraExtensions = append(IssuerExtension(subject.Issuer), AdditionalExtensions(subject)...) | ||
|
|
||
| finalCertBytes, err := x509.CreateCertificate(rand.Reader, cert, certauth.RootCA, subject.PublicKey, certauth.PrivKey) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return ca.CreateCSCFromDER(subject, finalCertBytes, nil) | ||
| } | ||
|
|
||
| func AdditionalExtensions(subject *challenges.ChallengeResult) []pkix.Extension { | ||
| res := []pkix.Extension{} | ||
| if subject.TypeVal == challenges.GithubWorkflowValue { | ||
| if trigger, ok := subject.AdditionalInfo[challenges.GithubWorkflowTrigger]; ok { | ||
| res = append(res, pkix.Extension{ | ||
| Id: asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 57264, 1, 2}, | ||
| Value: []byte(trigger), | ||
| }) | ||
| } | ||
|
|
||
| if sha, ok := subject.AdditionalInfo[challenges.GithubWorkflowSha]; ok { | ||
| res = append(res, pkix.Extension{ | ||
| Id: asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 57264, 1, 3}, | ||
| Value: []byte(sha), | ||
| }) | ||
| } | ||
| } | ||
| return res | ||
| } | ||
|
|
||
| func IssuerExtension(issuer string) []pkix.Extension { | ||
| if issuer == "" { | ||
| return nil | ||
| } | ||
|
|
||
| return []pkix.Extension{{ | ||
| Id: asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 57264, 1, 1}, | ||
| Value: []byte(issuer), | ||
| }} | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| //go:build !cgo | ||
| // +build !cgo | ||
|
|
||
| // Copyright 2021 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 x509ca | ||
|
|
||
| import ( | ||
| "errors" | ||
| ) | ||
|
|
||
| // NewX509CA is a placeholder for erroring with a meaningful message if the | ||
| // binary has been built with purego tags. | ||
| func NewX509CA() (*X509CA, error) { | ||
| return nil, errors.New("binary has been built with no cgo support, PKCS11 not supported") | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters