Implement X.509 signing

This commit is contained in:
Jan Dittberner 2021-01-08 18:41:29 +01:00
parent 6cd132b3f7
commit 2fdde4024d
7 changed files with 929 additions and 90 deletions

View File

@ -90,12 +90,19 @@ func (r *SignerRequest) String() string {
r.MdAlgorithm,
r.Days,
r.Spkac,
r.Content1,
r.Content2,
r.Content3,
shorten(r.Content1),
shorten(r.Content2),
shorten(r.Content3),
)
}
func shorten(original []byte) []byte {
if len(original) > 20 {
return original[:20]
}
return original
}
func NewNulRequest() *SignerRequest {
return &SignerRequest{
Version: shared.ProtocolVersion,

1
go.mod
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@ -3,6 +3,7 @@ module git.cacert.org/cacert-gosigner
go 1.15
require (
github.com/longsleep/pkac v0.0.0-20191013204540-205111305195
github.com/sirupsen/logrus v1.7.0
go.bug.st/serial v1.1.1
golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad

2
go.sum
View File

@ -5,6 +5,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/jandd/crypto v0.0.0-20210106144236-c3a8dd255ad6 h1:CfOE6Sr6BvfT6R90AgKcospJGP5+hwYhOjFR1XVb68Q=
github.com/jandd/crypto v0.0.0-20210106144236-c3a8dd255ad6/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
github.com/longsleep/pkac v0.0.0-20191013204540-205111305195 h1:Ze//Gia3DrTxmw6IiBCusbLcSobh7dBYceVkasDg2vA=
github.com/longsleep/pkac v0.0.0-20191013204540-205111305195/go.mod h1:Ck+2Ip7E9leckac1Bt/z0fdjmGCmR87IQsISZX7/qE0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=

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@ -94,14 +94,14 @@ func (p *CommandProcessor) handleSignAction(
*datastructures.SignerResponse,
error,
) {
log.Debugf("handle sign call: %v", command)
log.Debugf("handle sign call: %s", command)
idSystem, err := p.checkIdentitySystem(
command.System, command.Root, command.Profile, command.MdAlgorithm)
if err != nil {
return nil, err
}
log.Debugf("identified id system: %+v", idSystem)
log.Debugf("identified id system: %s", idSystem)
switch command.System {
case CsX509:
@ -167,6 +167,10 @@ type IdSystemParameters struct {
MessageDigestAlgorithm interface{}
}
func (s *IdSystemParameters) String() string {
return fmt.Sprintf("%s r:%s p:%s m:%s", s.System, s.Root, s.Profile, s.MessageDigestAlgorithm)
}
func (p *CommandProcessor) checkIdentitySystem(
systemId shared.CryptoSystemId,
rootId shared.CryptoSystemRootId,
@ -307,7 +311,38 @@ func (p *CommandProcessor) buildXDelta(oldFile string, newFile string) ([]byte,
}
func (p *CommandProcessor) signX509Certificate(system *IdSystemParameters, days uint16, spkac uint8, request []byte, san []byte, subject []byte) ([]byte, error) {
return nil, errors.New("signX509Certificate is not implemented yet")
x509Root := system.Root.(*x509_ops.Root)
signatureAlgorithm := system.MessageDigestAlgorithm.(x509.SignatureAlgorithm)
profile := system.Profile.(*x509_ops.Profile)
log.Debugf(
"sign X.509 certificate for root %s using profile %s and signature algorithm %s",
x509Root,
profile,
signatureAlgorithm,
)
log.Debugf(
"client wants %d days spkac is %v, requested subject '%s' and subjectAlternativeNames '%s'",
days, spkac == 1, subject, san,
)
log.Tracef("the following CSR should be signed\n%s", request)
content, err := x509Root.SignCertificate(
profile,
signatureAlgorithm,
&x509_ops.SigningRequestParameters{
Request: request,
Subject: subject,
SubjectAlternativeNames: san,
Days: days,
IsSpkac: spkac == 1,
},
)
if err != nil {
return nil, fmt.Errorf("could not sign X.509 CSR with root %s and profile %s: %v", x509Root, profile, err)
}
return content, nil
}
func (p *CommandProcessor) signOpenpgpKey(system *IdSystemParameters, days uint16, pubKey []byte) ([]byte, error) {

View File

@ -19,25 +19,31 @@ const (
const (
X509RootDefault shared.CryptoSystemRootId = 0
X509RootClass3 shared.CryptoSystemRootId = 1
X509RootClass3s shared.CryptoSystemRootId = 2
X509Root3 shared.CryptoSystemRootId = 3
X509Root4 shared.CryptoSystemRootId = 4
X509Root5 shared.CryptoSystemRootId = 5
// The following roots existed in the old server.pl but had
// no profile configurations and were thus unusable
//
// X509RootClass3s shared.CryptoSystemRootId = 2
// X509Root3 shared.CryptoSystemRootId = 3
// X509Root4 shared.CryptoSystemRootId = 4
// X509Root5 shared.CryptoSystemRootId = 5
)
const (
X509ProfileClient shared.CertificateProfileId = 0
X509ProfileClientOrg shared.CertificateProfileId = 1
X509ProfileClientCodesign shared.CertificateProfileId = 2
X509ProfileClientMachine shared.CertificateProfileId = 3
X509ProfileClientAds shared.CertificateProfileId = 4
X509ProfileServer shared.CertificateProfileId = 5
X509ProfileServerOrg shared.CertificateProfileId = 6
X509ProfileServerJabber shared.CertificateProfileId = 7
X509ProfileOCSP shared.CertificateProfileId = 8
X509ProfileTimestamp shared.CertificateProfileId = 9
X509ProfileProxy shared.CertificateProfileId = 10
X509ProfileSubCA shared.CertificateProfileId = 11
// the following profiles where valid options in the original signer code but had no configurations
//
// X509ProfileClientMachine shared.CertificateProfileId = 3 // no configuration on original signer
// X509ProfileClientAds shared.CertificateProfileId = 4 // no configuration on original signer
// X509ProfileServerJabber shared.CertificateProfileId = 7 // no configuration on original signer
// X509ProfileProxy shared.CertificateProfileId = 10 // no configuration on original signer
// X509ProfileSubCA shared.CertificateProfileId = 11 // no configuration on original signer
)
const (
@ -65,30 +71,172 @@ const (
func NewCommandProcessor() *CommandProcessor {
settings := NewCommandProcessorSettings()
clientPrototype := &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageEmailProtection,
x509.ExtKeyUsageClientAuth,
// x509.ExtKeyUsageMicrosoftServerGatedCrypto,
// 1.3.6.1.4.1.311.10.3.4 msEFS not supported by golang.org/crypto
// x509.ExtKeyUsageNetscapeServerGatedCrypto,
},
}
codeSignPrototype := &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageEmailProtection,
x509.ExtKeyUsageClientAuth,
x509.ExtKeyUsageCodeSigning,
// 1.3.6.1.4.1.311.2.1.21 msCodeInd not supported by golang.org/crypto
// x509.ExtKeyUsageMicrosoftCommercialCodeSigning,
// x509.ExtKeyUsageMicrosoftServerGatedCrypto,
// 1.3.6.1.4.1.311.10.3.4 msEFS not supported by golang.org/crypto
// x509.ExtKeyUsageNetscapeServerGatedCrypto,
},
}
serverPrototype := &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageClientAuth,
x509.ExtKeyUsageServerAuth,
// x509.ExtKeyUsageMicrosoftServerGatedCrypto,
// x509.ExtKeyUsageNetscapeServerGatedCrypto,
},
}
ocspPrototype := &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageServerAuth,
x509.ExtKeyUsageOCSPSigning,
// x509.ExtKeyUsageMicrosoftServerGatedCrypto,
// x509.ExtKeyUsageNetscapeServerGatedCrypto,
},
}
timestampPrototype := &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageServerAuth,
x509.ExtKeyUsageOCSPSigning,
// x509.ExtKeyUsageMicrosoftServerGatedCrypto,
// x509.ExtKeyUsageNetscapeServerGatedCrypto,
},
}
cryptoSystems := map[shared.CryptoSystemId]*CryptoSystem{
CsX509: {
Name: "X.509",
Roots: map[shared.CryptoSystemRootId]interface{}{
X509RootDefault: x509_ops.NewRoot(settings.CABaseDir, "openssl", "CA", X509RootDefault),
X509RootClass3: x509_ops.NewRoot(settings.CABaseDir, "class3", "class3", X509RootClass3),
X509RootClass3s: &x509_ops.Root{Name: "class3s"},
X509Root3: &x509_ops.Root{Name: "root3"},
X509Root4: &x509_ops.Root{Name: "root4"},
X509Root5: &x509_ops.Root{Name: "root5"},
X509RootDefault: x509_ops.NewRoot(
settings.CABaseDir,
"openssl",
"CA",
X509RootDefault,
// TODO: parse crl distribution points from configuration
[]string{"http://crl.cacert.localhost/revoke.crl"},
// TODO: parse OCSP endpoints from configuration
[]string{"http://ocsp.cacert.localhost"},
),
X509RootClass3: x509_ops.NewRoot(
settings.CABaseDir,
"class3",
"class3",
X509RootClass3,
// TODO: parse crl distribution points from configuration
[]string{"http://crl.cacert.localhost/class3-revoke.crl"},
// TODO: parse OCSP endpoints from configuration
[]string{"http://ocsp.cacert.localhost"},
),
// The following roots existed in the old server.pl but had
// no profile configurations and were thus unusable
//
// X509RootClass3s: &x509_ops.Root{Name: "class3s"}, // no profile configs
// X509Root3: &x509_ops.Root{Name: "root3"},
// X509Root4: &x509_ops.Root{Name: "root4"},
// X509Root5: &x509_ops.Root{Name: "root5"},
},
Profiles: map[shared.CertificateProfileId]interface{}{
X509ProfileClient: &x509_ops.Profile{Name: "client"},
X509ProfileClientOrg: &x509_ops.Profile{Name: "client-org"},
X509ProfileClientCodesign: &x509_ops.Profile{Name: "client-codesign"},
X509ProfileClientMachine: &x509_ops.Profile{Name: "client-machine"},
X509ProfileClientAds: &x509_ops.Profile{Name: "client-ads"},
X509ProfileServer: &x509_ops.Profile{Name: "server"},
X509ProfileServerOrg: &x509_ops.Profile{Name: "server-org"},
X509ProfileServerJabber: &x509_ops.Profile{Name: "server-jabber"},
X509ProfileOCSP: &x509_ops.Profile{Name: "ocsp"},
X509ProfileTimestamp: &x509_ops.Profile{Name: "timestamp"},
X509ProfileProxy: &x509_ops.Profile{Name: "proxy"},
X509ProfileSubCA: &x509_ops.Profile{Name: "subca"},
X509ProfileClient: x509_ops.NewProfile(
"client",
clientPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCommonName,
x509_ops.SubjectDnFieldEmailAddress,
},
nil,
true,
),
X509ProfileClientOrg: x509_ops.NewProfile("client-org", clientPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCountryName,
x509_ops.SubjectDnFieldStateOrProvinceName,
x509_ops.SubjectDnFieldLocalityName,
x509_ops.SubjectDnFieldOrganizationName,
x509_ops.SubjectDnFieldOrganizationalUnitName,
x509_ops.SubjectDnFieldCommonName,
x509_ops.SubjectDnFieldEmailAddress,
},
nil,
true,
),
X509ProfileClientCodesign: x509_ops.NewProfile("client-codesign", codeSignPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCountryName,
x509_ops.SubjectDnFieldStateOrProvinceName,
x509_ops.SubjectDnFieldLocalityName,
x509_ops.SubjectDnFieldCommonName,
x509_ops.SubjectDnFieldEmailAddress,
},
nil,
true,
),
// X509ProfileClientMachine: &x509_ops.Profile{Name: "client-machine"},
// X509ProfileClientAds: &x509_ops.Profile{Name: "client-ads"},
X509ProfileServer: x509_ops.NewProfile("server", serverPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCommonName,
},
[]x509_ops.AltNameType{x509_ops.NameTypeDNS, x509_ops.NameTypeXmppJid},
false,
),
X509ProfileServerOrg: x509_ops.NewProfile("server-org", serverPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCountryName,
x509_ops.SubjectDnFieldStateOrProvinceName,
x509_ops.SubjectDnFieldLocalityName,
x509_ops.SubjectDnFieldOrganizationName,
x509_ops.SubjectDnFieldOrganizationalUnitName,
x509_ops.SubjectDnFieldCommonName,
},
[]x509_ops.AltNameType{x509_ops.NameTypeDNS, x509_ops.NameTypeXmppJid},
false,
),
// X509ProfileServerJabber: &x509_ops.Profile{Name: "server-jabber"},
X509ProfileOCSP: x509_ops.NewProfile("ocsp", ocspPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCountryName,
x509_ops.SubjectDnFieldStateOrProvinceName,
x509_ops.SubjectDnFieldLocalityName,
x509_ops.SubjectDnFieldOrganizationName,
x509_ops.SubjectDnFieldOrganizationalUnitName,
x509_ops.SubjectDnFieldCommonName,
x509_ops.SubjectDnFieldEmailAddress,
},
nil,
false,
),
X509ProfileTimestamp: x509_ops.NewProfile("timestamp", timestampPrototype,
[]x509_ops.SubjectDnField{
x509_ops.SubjectDnFieldCountryName,
x509_ops.SubjectDnFieldStateOrProvinceName,
x509_ops.SubjectDnFieldLocalityName,
x509_ops.SubjectDnFieldOrganizationName,
x509_ops.SubjectDnFieldOrganizationalUnitName,
x509_ops.SubjectDnFieldCommonName,
},
nil,
true,
),
// X509ProfileProxy: &x509_ops.Profile{Name: "proxy"},
// X509ProfileSubCA: &x509_ops.Profile{Name: "subca"},
},
// constants for openssl invocations. Should be replaced with
// something more useful

View File

@ -2,15 +2,18 @@ package x509_ops
import (
"bufio"
"bytes"
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/x509"
"crypto/x509/pkix"
"encoding/base64"
"encoding/hex"
"encoding/pem"
"fmt"
"io"
"io/ioutil"
"math/big"
"os"
@ -20,6 +23,7 @@ import (
"strings"
"time"
"github.com/longsleep/pkac"
log "github.com/sirupsen/logrus"
"git.cacert.org/cacert-gosigner/shared"
@ -28,26 +32,28 @@ import (
const crlLifetime = time.Hour * 24 * 7
var (
oidPkcs9EmailAddress = []int{1, 2, 840, 113549, 1, 9, 1}
)
type Root struct {
Name string
privateKeyFile string
certificateFile string
databaseFile string
crlNumberFile string
crlFileName string
crlHashDir string
Name string
privateKey crypto.Signer
certificate *x509.Certificate
databaseFile string
serialNumberFile string
crlNumberFile string
crlFileName string
crlHashDir string
crlDistributionPoints []string
ocspServers []string
}
func (x *Root) String() string {
return x.Name
}
type Profile struct {
Name string
}
func (x *Root) loadCertificate() (*x509.Certificate, error) {
certificateFile := x.certificateFile
func loadCertificate(certificateFile string) (*x509.Certificate, error) {
pemBytes, err := ioutil.ReadFile(certificateFile)
if err != nil {
return nil, fmt.Errorf(
@ -75,21 +81,23 @@ func (x *Root) loadCertificate() (*x509.Certificate, error) {
return certificate, nil
}
func (x *Root) getPrivateKey() (crypto.Signer, error) {
privateKeyFile := x.privateKeyFile
pemBytes, err := ioutil.ReadFile(privateKeyFile)
func loadPrivateKey(filename string) (crypto.Signer, error) {
pemBytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, fmt.Errorf(
"could not load private key %s: %v",
privateKeyFile,
filename,
err,
)
}
pemBlock, _ := pem.Decode(pemBytes)
if pemBlock == nil {
return nil, fmt.Errorf("no PEM data found in %s", filename)
}
if pemBlock.Type != "PRIVATE KEY" {
log.Warnf(
"PEM in %s is probably not a private key. PEM block has type %s",
privateKeyFile,
filename,
pemBlock.Type,
)
}
@ -97,27 +105,46 @@ func (x *Root) getPrivateKey() (crypto.Signer, error) {
if err != nil {
return nil, fmt.Errorf(
"could no parse private key from %s: %v",
privateKeyFile,
filename,
err,
)
}
return privateKey.(*rsa.PrivateKey), nil
}
func (x *Root) getNextCRLNumber() (*big.Int, error) {
crlNumberFile := x.crlNumberFile
_, err := os.Stat(crlNumberFile)
func (x *Root) getNextSerialNumber() (*big.Int, error) {
// TODO: decide whether we should use 64 bit random serial numbers as
// recommended by CAB forum baseline requirements
serialNumberFile := x.serialNumberFile
_, err := os.Stat(serialNumberFile)
if err != nil {
log.Warnf("CRL number file %s does not exist: %v", crlNumberFile, err)
log.Warnf("serial number file %s does not exist: %v", x.serialNumberFile, err)
return big.NewInt(1), nil
}
data, err := ioutil.ReadFile(crlNumberFile)
data, err := ioutil.ReadFile(x.serialNumberFile)
if err != nil {
return nil, fmt.Errorf("could not read CRL number file %s", crlNumberFile)
return nil, fmt.Errorf("could not read serial number file %s: %v", x.serialNumberFile, err)
}
result, err := common.StringAsBigInt(data)
if err != nil {
return nil, fmt.Errorf("could not parse content of %s as CRL number: %v", crlNumberFile, err)
return nil, fmt.Errorf("could not parse content of %s as serial number: %v", x.serialNumberFile, err)
}
return result, err
}
func (x *Root) getNextCRLNumber() (*big.Int, error) {
_, err := os.Stat(x.crlNumberFile)
if err != nil {
log.Warnf("CRL number file %s does not exist: %v", x.crlNumberFile, err)
return big.NewInt(1), nil
}
data, err := ioutil.ReadFile(x.crlNumberFile)
if err != nil {
return nil, fmt.Errorf("could not read CRL number file %s: %v", x.crlNumberFile, err)
}
result, err := common.StringAsBigInt(data)
if err != nil {
return nil, fmt.Errorf("could not parse content of %s as CRL number: %v", x.crlNumberFile, err)
}
return result, nil
}
@ -148,6 +175,33 @@ func (x *Root) bumpCRLNumber(current *big.Int) error {
return nil
}
func (x *Root) bumpSerialNumber(current *big.Int) error {
serial := current.Int64() + 1
outFile, err := ioutil.TempFile(path.Dir(x.serialNumberFile), "*.txt")
defer func() { _ = outFile.Close() }()
_, err = outFile.WriteString(fmt.Sprintf(
"%s\n",
strings.ToUpper(strconv.FormatInt(serial, 16)),
))
if err != nil {
return fmt.Errorf("could not write new serial number %d to %s: %v", serial, outFile.Name(), err)
}
if err = outFile.Close(); err != nil {
return fmt.Errorf("could not close temporary file %s: %v", outFile.Name(), err)
}
if _, err = os.Stat(x.serialNumberFile); err == nil {
if err = os.Rename(x.serialNumberFile, fmt.Sprintf("%s.old", x.serialNumberFile)); err != nil {
return fmt.Errorf("could not rename %s to %s.old: %v", x.serialNumberFile, x.serialNumberFile, err)
}
}
if err = os.Rename(outFile.Name(), x.serialNumberFile); err != nil {
return fmt.Errorf("could not rename %s to %s: %v", outFile.Name(), x.serialNumberFile, err)
}
return nil
}
func (x *Root) loadRevokedCertificatesFromDatabase() ([]pkix.RevokedCertificate, error) {
databaseFile := x.databaseFile
_, err := os.Stat(databaseFile)
@ -182,18 +236,17 @@ func (x *Root) loadRevokedCertificatesFromDatabase() ([]pkix.RevokedCertificate,
}
func (x *Root) recordRevocation(certificate *x509.Certificate) (*pkix.RevokedCertificate, error) {
databaseFile := x.databaseFile
_, err := os.Stat(databaseFile)
_, err := os.Stat(x.databaseFile)
if err != nil {
return nil, fmt.Errorf("openssl certificate database file %s does not exist: %v", databaseFile, err)
return nil, fmt.Errorf("openssl certificate database file %s does not exist: %v", x.databaseFile, err)
}
inFile, err := os.Open(databaseFile)
inFile, err := os.Open(x.databaseFile)
if err != nil {
return nil, fmt.Errorf("could not open openssl certificate database file %s: %v", databaseFile, err)
return nil, fmt.Errorf("could not open openssl certificate database file %s: %v", x.databaseFile, err)
}
defer func() { _ = inFile.Close() }()
outFile, err := ioutil.TempFile(path.Dir(databaseFile), "*.txt")
outFile, err := ioutil.TempFile(path.Dir(x.databaseFile), "*.txt")
defer func() { _ = outFile.Close() }()
scanner := bufio.NewScanner(inFile)
@ -225,15 +278,15 @@ func (x *Root) recordRevocation(certificate *x509.Certificate) (*pkix.RevokedCer
return nil, fmt.Errorf("could not close temporary file %s: %v", outFile.Name(), err)
}
if err = inFile.Close(); err != nil {
return nil, fmt.Errorf("could not close %s: %v", databaseFile, err)
return nil, fmt.Errorf("could not close %s: %v", x.databaseFile, err)
}
if err = os.Rename(databaseFile, fmt.Sprintf("%s.old", databaseFile)); err != nil {
return nil, fmt.Errorf("could not rename %s to %s.old: %v", databaseFile, databaseFile, err)
if err = os.Rename(x.databaseFile, fmt.Sprintf("%s.old", x.databaseFile)); err != nil {
return nil, fmt.Errorf("could not rename %s to %s.old: %v", x.databaseFile, x.databaseFile, err)
}
if err = os.Rename(outFile.Name(), databaseFile); err != nil {
return nil, fmt.Errorf("could not rename temporary file %s to %s: %v", outFile.Name(), databaseFile, err)
if err = os.Rename(outFile.Name(), x.databaseFile); err != nil {
return nil, fmt.Errorf("could not rename temporary file %s to %s: %v", outFile.Name(), x.databaseFile, err)
}
if !found {
@ -268,14 +321,6 @@ func (x *Root) RevokeCertificate(request []byte) (*pkix.RevokedCertificate, erro
}
func (x *Root) GenerateCrl(algorithm x509.SignatureAlgorithm) ([]byte, *[20]byte, error) {
caCertificate, err := x.loadCertificate()
if err != nil {
return nil, nil, err
}
caPrivateKey, err := x.getPrivateKey()
if err != nil {
return nil, nil, err
}
certificatesToRevoke, err := x.loadRevokedCertificatesFromDatabase()
if err != nil {
return nil, nil, err
@ -302,8 +347,8 @@ func (x *Root) GenerateCrl(algorithm x509.SignatureAlgorithm) ([]byte, *[20]byte
crlBytes, err := x509.CreateRevocationList(
rand.Reader,
crlTemplate,
caCertificate,
caPrivateKey,
x.certificate,
x.privateKey,
)
if err != nil {
return nil, nil, fmt.Errorf("could not create new CRL: %v", err)
@ -355,11 +400,10 @@ func (x *Root) GetCrlFileName(hash string) string {
func (x *Root) checkPreconditions() {
results := []bool{
x.checkFile(x.privateKeyFile, "private key"),
x.checkFile(x.certificateFile, "certificate"),
x.checkFile(x.databaseFile, "database"),
x.checkFile(x.serialNumberFile, "serial number"),
x.checkFile(x.crlNumberFile, "CRL serial number"),
x.checkFile(x.crlFileName, "CRL file"),
x.checkFile(x.crlFileName, "CRL"),
x.checkDir(x.crlHashDir, "directory for hash indexed CRLs"),
}
for _, success := range results {
@ -399,20 +443,418 @@ func (x *Root) checkDir(path, prefix string) bool {
return ok
}
func NewRoot(basedir, name, subdir string, id shared.CryptoSystemRootId) *Root {
type SigningRequestParameters struct {
Request []byte
Subject []byte
SubjectAlternativeNames []byte
Days uint16
IsSpkac bool
}
func (x *Root) SignCertificate(
profile *Profile,
algorithm x509.SignatureAlgorithm,
params *SigningRequestParameters,
) ([]byte, error) {
var publicKey interface{}
if params.IsSpkac {
var err error
const spkacPrefix = "SPKAC="
if bytes.Compare([]byte(spkacPrefix), params.Request[:len(spkacPrefix)]) != 0 {
return nil, fmt.Errorf("request does not contain a valid SPKAC string")
}
derBytes, err := base64.StdEncoding.DecodeString(string(params.Request[len(spkacPrefix):]))
if err != nil {
return nil, fmt.Errorf("could not decode SPKAC bytes: %v", err)
}
publicKey, err = pkac.ParseSPKAC(derBytes)
if err != nil {
return nil, fmt.Errorf("could not parse SPKAC: %v", err)
}
} else {
csrBlock, _ := pem.Decode(params.Request)
if csrBlock.Type != "CERTIFICATE REQUEST" {
return nil, fmt.Errorf("unexpected PEM block '%s' instead of 'CERTIFICATE REQUEST'", csrBlock.Type)
}
csr, err := x509.ParseCertificateRequest(csrBlock.Bytes)
if err != nil {
return nil, fmt.Errorf("could not parse CSR: %v", err)
}
publicKey = csr.PublicKey
}
nextSerialNumber, err := x.getNextSerialNumber()
if err != nil {
return nil, fmt.Errorf("could not get next serial number: %v", err)
}
// copy profile
notBefore := time.Now()
notAfter := notBefore.Add(time.Hour * 24 * time.Duration(params.Days))
certificate := &x509.Certificate{
KeyUsage: profile.prototype.KeyUsage,
ExtKeyUsage: profile.prototype.ExtKeyUsage,
SignatureAlgorithm: algorithm,
CRLDistributionPoints: x.crlDistributionPoints,
OCSPServer: x.ocspServers,
SerialNumber: nextSerialNumber,
NotBefore: notBefore,
NotAfter: notAfter,
}
// check subject
subject, err := profile.parseSubject(params.Subject)
if err != nil {
return nil, fmt.Errorf("could not parse subject: %v", err)
}
certificate.Subject = *subject
// check altNames
err = profile.parseAltNames(certificate, params.SubjectAlternativeNames)
if err != nil {
return nil, fmt.Errorf("could not parse subject alternative names: %v", err)
}
moveEmailsFromSubjectToAlternativeNames(certificate)
log.Tracef("prepared for signing: %+v", certificate)
certBytes, err := x509.CreateCertificate(rand.Reader, certificate, x.certificate, publicKey, x.privateKey)
if err != nil {
return nil, fmt.Errorf("could not sign certificate: %v", err)
}
parsedCertificate, err := x509.ParseCertificate(certBytes)
if err != nil {
return nil, fmt.Errorf("could not parse signed certificate: %v", err)
}
if err = x.bumpSerialNumber(nextSerialNumber); err != nil {
log.Errorf("could not bump serial number: %v", err)
}
err = x.recordIssuedCertificate(parsedCertificate)
if err != nil {
return nil, fmt.Errorf("could not record signed certificate in database: %v", err)
}
pemBytes := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certBytes})
log.Tracef("signed new certificate\n%s", pemBytes)
return pemBytes, nil
}
// we move the email addresses to alt names because they are encoded to UTF-8
// otherwise which is not compliant to RFC-5280
func moveEmailsFromSubjectToAlternativeNames(certificate *x509.Certificate) {
extraNames := make([]pkix.AttributeTypeAndValue, 0)
for _, p := range certificate.Subject.ExtraNames {
if p.Type.Equal(oidPkcs9EmailAddress) {
email := p.Value.(string)
if certificate.EmailAddresses == nil {
certificate.EmailAddresses = []string{email}
continue
}
for _, e := range certificate.EmailAddresses {
if e == p.Value {
continue
}
}
certificate.EmailAddresses = append(certificate.EmailAddresses, email)
} else {
extraNames = append(extraNames, p)
}
}
certificate.Subject.ExtraNames = extraNames
}
func (x *Root) recordIssuedCertificate(certificate *x509.Certificate) error {
log.Tracef("recording %+v", certificate)
tempFile, err := ioutil.TempFile(path.Dir(x.databaseFile), "*.txt")
if err != nil {
return fmt.Errorf("could not create temporary file: %v", err)
}
defer func() { _ = tempFile.Close() }()
tempName := tempFile.Name()
dbExists := false
_, err = os.Stat(x.databaseFile)
if err != nil {
log.Warnf("openssl certificate database file %s does not exist: %v", x.databaseFile, err)
} else {
dbExists = true
inFile, err := os.Open(x.databaseFile)
defer func() { _ = inFile.Close() }()
if err != nil {
return fmt.Errorf("could not open openssl certificate database file %s: %v", x.databaseFile, err)
}
_, err = io.Copy(tempFile, inFile)
if err != nil {
return fmt.Errorf("could not copy %s to temporary file %s: %v", x.databaseFile, tempName, err)
}
if err = inFile.Close(); err != nil {
return fmt.Errorf("could not close %s: %v", x.databaseFile, err)
}
}
if err = tempFile.Close(); err != nil {
return fmt.Errorf("could not close temporary file %s: %v", tempName, err)
}
outFile, err := os.OpenFile(tempName, os.O_APPEND|os.O_WRONLY, 0644)
if err != nil {
return fmt.Errorf("could not open temporary file for writing %s: %v", tempName, err)
}
defer func() { _ = outFile.Close() }()
line := strings.Join([]string{"V", strconv.FormatInt(certificate.NotBefore.Unix(), 10) + "Z", "", strings.ToUpper(certificate.SerialNumber.Text(16)), "unknown", opensslFormatDN(certificate.Subject)}, "\t")
_, err = fmt.Fprintln(outFile, line)
if err != nil {
return fmt.Errorf("could not write '%s' to %s: %v", line, tempName, err)
}
if err = outFile.Close(); err != nil {
return fmt.Errorf("could not close temporary file %s: %v", tempName, err)
}
if dbExists {
if err = os.Rename(x.databaseFile, fmt.Sprintf("%s.old", x.databaseFile)); err != nil {
return fmt.Errorf("could not rename %s to %s.old: %v", x.databaseFile, x.databaseFile, err)
}
}
if err = os.Rename(tempName, x.databaseFile); err != nil {
return fmt.Errorf("could not rename temporary file %s to %s: %v", tempName, x.databaseFile, err)
}
return nil
}
func opensslFormatDN(subject pkix.Name) string {
var buf strings.Builder
for _, rdn := range subject.ToRDNSequence() {
if len(rdn) == 0 {
continue
}
for _, atv := range rdn {
value, ok := atv.Value.(string)
if !ok {
continue
}
t := atv.Type
if len(t) == 4 && t[:3].Equal([]int{2, 5, 4}) {
switch t[3] {
case 3:
buf.WriteString("/CN=")
buf.WriteString(value)
case 6:
buf.WriteString("/C=")
buf.WriteString(value)
case 7:
buf.WriteString("/L=")
buf.WriteString(value)
case 8:
buf.WriteString("/ST=")
buf.WriteString(value)
case 10:
buf.WriteString("/O=")
buf.WriteString(value)
case 11:
buf.WriteString("/OU=")
buf.WriteString(value)
}
} else if t.Equal(oidPkcs9EmailAddress) {
buf.WriteString("/emailAddress=")
buf.WriteString(value)
}
}
}
return buf.String()
}
func NewRoot(
basedir, name, subdir string,
id shared.CryptoSystemRootId,
crlDistributionPoints, ocspServers []string,
) *Root {
key, err := loadPrivateKey(path.Join(basedir, subdir, "private", "ca.key.pem"))
if err != nil {
log.Fatalf("could not load private key: %v", err)
}
cert, err := loadCertificate(path.Join(basedir, subdir, "ca.crt.pem"))
if err != nil {
log.Fatalf("could not load CA certificate: %v", err)
}
root := &Root{
Name: name,
privateKeyFile: path.Join(basedir, subdir, "private", "ca.key.pem"),
certificateFile: path.Join(basedir, subdir, "ca.crt.pem"),
databaseFile: path.Join(basedir, subdir, "index.txt"),
crlNumberFile: path.Join(basedir, subdir, "crlnumber"),
crlFileName: fmt.Sprintf("revoke-root%d.crl", id),
Name: name,
privateKey: key,
certificate: cert,
databaseFile: path.Join(basedir, subdir, "index.txt"),
serialNumberFile: path.Join(basedir, subdir, "serial"),
crlNumberFile: path.Join(basedir, subdir, "crlnumber"),
crlFileName: fmt.Sprintf("revoke-root%d.crl", id),
crlHashDir: path.Join(
basedir,
"currentcrls",
fmt.Sprintf("%d", id),
),
crlDistributionPoints: crlDistributionPoints,
ocspServers: ocspServers,
}
root.checkPreconditions()
return root
}
type AltNameType string
const (
NameTypeDNS AltNameType = "DNS"
NameTypeXmppJid = "otherName:1.3.6.1.5.5.7.8.5;UTF8" // from RFC 3920, 6120
)
type SubjectDnField string
const (
SubjectDnFieldCountryName SubjectDnField = "C"
SubjectDnFieldStateOrProvinceName = "ST"
SubjectDnFieldLocalityName = "L"
SubjectDnFieldOrganizationName = "O"
SubjectDnFieldOrganizationalUnitName = "OU"
SubjectDnFieldCommonName = "CN"
SubjectDnFieldEmailAddress = "emailAddress"
)
type Profile struct {
name string
prototype *x509.Certificate
subjectDNFields []SubjectDnField
altNameTypes []AltNameType
copyEmail bool // whether to copy emailAddress values from subjectDN to email address subject alternative name
}
func (p *Profile) String() string {
return p.name
}
func (p *Profile) parseSubject(subject []byte) (*pkix.Name, error) {
parts := strings.Split(string(subject), "/")
subjectDN := &pkix.Name{}
for _, part := range parts {
if len(strings.TrimSpace(part)) == 0 {
continue
}
handled := false
item := strings.SplitN(part, "=", 2)
for _, f := range p.subjectDNFields {
if strings.ToUpper(item[0]) != strings.ToUpper(string(f)) {
continue
}
value := item[1]
handled = true
switch f {
case SubjectDnFieldCountryName:
if subjectDN.Country == nil {
subjectDN.Country = []string{value}
} else {
subjectDN.Country = append(subjectDN.Country, value)
}
case SubjectDnFieldStateOrProvinceName:
if subjectDN.Province == nil {
subjectDN.Province = []string{value}
} else {
subjectDN.Province = append(subjectDN.Province, value)
}
case SubjectDnFieldLocalityName:
if subjectDN.Locality == nil {
subjectDN.Locality = []string{value}
} else {
subjectDN.Locality = append(subjectDN.Locality, value)
}
case SubjectDnFieldOrganizationName:
if subjectDN.Organization == nil {
subjectDN.Organization = []string{value}
} else {
subjectDN.Organization = append(subjectDN.Organization, value)
}
case SubjectDnFieldOrganizationalUnitName:
if subjectDN.OrganizationalUnit == nil {
subjectDN.OrganizationalUnit = []string{value}
} else {
subjectDN.OrganizationalUnit = append(subjectDN.OrganizationalUnit, value)
}
case SubjectDnFieldCommonName:
subjectDN.CommonName = value
case SubjectDnFieldEmailAddress:
emailIA5 := pkix.AttributeTypeAndValue{
Type: oidPkcs9EmailAddress,
Value: value,
}
if subjectDN.ExtraNames == nil {
subjectDN.ExtraNames = []pkix.AttributeTypeAndValue{emailIA5}
} else {
subjectDN.ExtraNames = append(subjectDN.ExtraNames, emailIA5)
}
default:
log.Warnf("unhandled subject DN type %s", f)
}
}
if !handled {
return nil, fmt.Errorf("skipped part %s because it is not supported by profile %s", part, p)
}
}
log.Debugf("created subject DN %s", subjectDN)
return subjectDN, nil
}
func (p *Profile) parseAltNames(template *x509.Certificate, altNames []byte) error {
parts := strings.Split(string(altNames), ",")
for _, part := range parts {
if len(strings.TrimSpace(part)) == 0 {
continue
}
handled := false
item := strings.SplitN(part, ":", 3)
if item[0] == "otherName" {
item = []string{strings.Join(item[:2], ":"), item[2]}
} else {
item = []string{item[0], strings.Join(item[1:], ":")}
}
for _, f := range p.altNameTypes {
if item[0] != string(f) {
continue
}
value := item[1]
handled = true
switch f {
case NameTypeDNS:
if template.DNSNames == nil {
template.DNSNames = []string{value}
} else {
template.DNSNames = append(template.DNSNames, value)
}
case NameTypeXmppJid:
// x509.Certificate has no support for otherName alternative names
log.Warnf("skipping %s because it cannot be supported", part)
default:
log.Warnf("unhandled alternative name type %s", f)
}
}
if !handled {
return fmt.Errorf("skipped alternative name %s because it is not supported by profile %s", part, p)
}
}
return nil
}
func NewProfile(
name string,
prototype *x509.Certificate,
subjectDnFields []SubjectDnField,
altNameTypes []AltNameType,
copyEmail bool,
) *Profile {
return &Profile{
name: name,
prototype: prototype,
subjectDNFields: subjectDnFields,
altNameTypes: altNameTypes,
copyEmail: copyEmail,
}
}

View File

@ -0,0 +1,204 @@
package x509_ops
import (
"crypto"
"crypto/x509"
"encoding/base64"
"encoding/pem"
"path"
"testing"
)
func TestRoot_SignClientCertificateWithCSR(t *testing.T) {
tempDir := t.TempDir()
root := &Root{
Name: "test",
privateKey: loadTestKey(t),
certificate: loadTestCACertificate(t),
databaseFile: path.Join(tempDir, "index.txt"),
serialNumberFile: path.Join(tempDir, "serial"),
crlDistributionPoints: []string{"http://crl.example.org/revoke.crl"},
ocspServers: []string{"http://ocsp.example.org/"},
}
clientProfile := &Profile{
name: "client",
prototype: &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageEmailProtection,
x509.ExtKeyUsageClientAuth,
},
},
subjectDNFields: []SubjectDnField{SubjectDnFieldCommonName, SubjectDnFieldEmailAddress},
copyEmail: true,
}
certificate, err := root.SignCertificate(clientProfile, x509.SHA256WithRSA, &SigningRequestParameters{
Request: decodeToBytes(t, testRequest),
Subject: []byte(testClientSubject),
SubjectAlternativeNames: []byte(testClientSan),
Days: 30,
IsSpkac: false,
})
if err != nil {
t.Errorf("error signing certificate: %v", err)
return
}
certificateDer, _ := pem.Decode(certificate)
if certificateDer.Type != "CERTIFICATE" {
t.Errorf("invalid PEM type '%s' instead of 'CERTIFICATE'", certificateDer.Type)
return
}
_, err = x509.ParseCertificate(certificateDer.Bytes)
if err != nil {
t.Errorf("could not parse generated certificate: %v", err)
return
}
}
func TestRoot_SignClientCertificateWithSPKAC(t *testing.T) {
root := &Root{
Name: "test",
privateKey: loadTestKey(t),
certificate: loadTestCACertificate(t),
databaseFile: path.Join(t.TempDir(), "index.txt"),
serialNumberFile: path.Join(t.TempDir(), "serial"),
crlDistributionPoints: []string{"http://crl.example.org/revoke.crl"},
ocspServers: []string{"http://ocsp.example.org/"},
}
clientProfile := &Profile{
name: "client",
prototype: &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageEmailProtection,
x509.ExtKeyUsageClientAuth,
},
},
subjectDNFields: []SubjectDnField{SubjectDnFieldCommonName, SubjectDnFieldEmailAddress},
copyEmail: true,
}
certificate, err := root.SignCertificate(clientProfile, x509.SHA256WithRSA, &SigningRequestParameters{
Request: decodeToBytes(t, testSpkac),
Subject: []byte(testClientSubject),
SubjectAlternativeNames: []byte(testClientSan),
Days: 30,
IsSpkac: true,
})
if err != nil {
t.Errorf("error signing certificate: %v", err)
return
}
certificateDer, _ := pem.Decode(certificate)
if certificateDer.Type != "CERTIFICATE" {
t.Errorf("invalid PEM type '%s' instead of 'CERTIFICATE'", certificateDer.Type)
return
}
_, err = x509.ParseCertificate(certificateDer.Bytes)
if err != nil {
t.Errorf("could not parse generated certificate: %v", err)
return
}
}
func TestRoot_SignServerCertificateWithCSR(t *testing.T) {
tempDir := t.TempDir()
root := &Root{
Name: "test",
privateKey: loadTestKey(t),
certificate: loadTestCACertificate(t),
databaseFile: path.Join(tempDir, "index.txt"),
serialNumberFile: path.Join(tempDir, "serial"),
crlDistributionPoints: []string{"http://crl.example.org/revoke.crl"},
ocspServers: []string{"http://ocsp.example.org/"},
}
clientProfile := &Profile{
name: "server",
prototype: &x509.Certificate{
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment | x509.KeyUsageKeyAgreement,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageEmailProtection,
x509.ExtKeyUsageClientAuth,
},
},
subjectDNFields: []SubjectDnField{
SubjectDnFieldCountryName,
SubjectDnFieldStateOrProvinceName,
SubjectDnFieldLocalityName,
SubjectDnFieldOrganizationName,
SubjectDnFieldOrganizationalUnitName,
SubjectDnFieldCommonName,
},
altNameTypes: []AltNameType{NameTypeDNS, NameTypeXmppJid},
copyEmail: false,
}
certificate, err := root.SignCertificate(clientProfile, x509.SHA256WithRSA, &SigningRequestParameters{
Request: decodeToBytes(t, testRequest),
Subject: []byte(testServerSubject),
SubjectAlternativeNames: []byte(testServerSan),
Days: 30,
IsSpkac: false,
})
if err != nil {
t.Errorf("error signing certificate: %v", err)
return
}
certificateDer, _ := pem.Decode(certificate)
if certificateDer.Type != "CERTIFICATE" {
t.Errorf("invalid PEM type '%s' instead of 'CERTIFICATE'", certificateDer.Type)
return
}
_, err = x509.ParseCertificate(certificateDer.Bytes)
if err != nil {
t.Errorf("could not parse generated certificate: %v", err)
return
}
}
func loadTestKey(t *testing.T) crypto.Signer {
testKeyBytes := decodeToBytes(t, testCAKey)
key, err := x509.ParsePKCS1PrivateKey(testKeyBytes)
if err != nil {
t.Fatal(err)
}
return key
}
func loadTestCACertificate(t *testing.T) *x509.Certificate {
testCertBytes := decodeToBytes(t, testCACertificate)
cert, err := x509.ParseCertificate(testCertBytes)
if err != nil {
t.Fatal(err)
}
return cert
}
func decodeToBytes(t *testing.T, request string) []byte {
decodeString, err := base64.StdEncoding.DecodeString(request)
if err != nil {
t.Fatal(err)
}
return decodeString
}
const testRequest = "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"
const testSpkac = "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"
const testClientSubject = "/CN=Test/emailAddress=test@example.org"
const testClientSan = ""
const testServerSubject = "/CN=www.example.org"
const testServerSan = "DNS:www.example.org,otherName:1.3.6.1.5.5.7.8.5;UTF8:www.example.org"
const testCAKey = "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"
const testCACertificate = "MIIFmDCCBACgAwIBAgIUOlITUGXFrKZesL4LlawzVxLTXFYwDQYJKoZIhvcNAQELBQAwNzELMAkGA1UEBhMCQVUxFDASBgNVBAoMC0NBY2VydCBJbmMuMRIwEAYDVQQDDAlUZXN0IFJvb3QwHhcNMjEwMTA4MTMwNDM5WhcNMjYwMTA3MTMwNDM5WjA9MQswCQYDVQQGEwJBVTEUMBIGA1UECgwLQ0FjZXJ0IEluYy4xGDAWBgNVBAMMD0NsYXNzIDMgVGVzdCBDQTCCAaIwDQYJKoZIhvcNAQEBBQADggGPADCCAYoCggGBAKjFj9hHPw8SeZ+Wwr9HuqEwaBr7KZatah1bcDwxC/28JYVG04oBj0BqFCvmN3ktk+RWP6qXX6o1AYvxZz4ijcBJ5pGLkmpEkkuhsq4LD/O+s9cV7YedAiJFJwD0dWCdG2JoVKRIrUSYKFmuZst20vi7jbdYFRw/s8gjpW3zSWUyC50BxS7c4v8D4r5U1qVAycx1r76PiouHtvalkTGgGrYly1Kv8FtOn7EUmvaZZITb+45YPYavGNkhIntJkb7shYCCr5AZnE91+cj4QlmT6JrKkJxCVyp8Z6NEpKzPl6FlgXrrGD7GZH15JxsMv8L6DG1U+TH6sjGGNQk8PP82kg6Av7I/F5gC+OLfhLGfiRFGIElVumNy9ionrqgom4OAfhvKiOAEJtnI12p419ZFk1AgrRjuspcUSjatMwloX5RNotrP/uL/kbh0NZWmJ35d7yEGR89P4LUCJUdgKl3Njg0aEzvHfNHV2Y8CJp64x0P8h8eCxKxzKazY0G9Aaa7QgwIDAQABo4IBlDCCAZAwEgYDVR0TAQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAQYwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMB0GA1UdDgQWBBRI3ALoQ7dcRqu0gHtxaLVAv2DcOzAfBgNVHSMEGDAWgBTrwahlUMEoV1OavhMbkLcSar8PIzB3BggrBgEFBQcBAQRrMGkwNwYIKwYBBQUHMAKGK2h0dHA6Ly90ZXN0LmNhY2VydC5sb2NhbGhvc3QvY2Evcm9vdC9jYS5jcnQwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLnRlc3QuY2FjZXJ0LmxvY2FsaG9zdC8wPAYDVR0fBDUwMzAxoC+gLYYraHR0cDovL2NybC50ZXN0LmNhY2VydC5sb2NhbGhvc3QvY2xhc3MzLmNybDBUBgNVHSAETTBLMEkGCCsGAQUFBwIBMD0wOwYIKwYBBQUHAgEWL2h0dHA6Ly90ZXN0LmNhY2VydC5sb2NhbGhvc3QvY2EvY2xhc3MzL2Nwcy5odG1sMA0GCSqGSIb3DQEBCwUAA4IBgQAcqK68GOxTfM9zSRbHWHchsbiyKcbxPo42se9dm/nLHT/N2XEW9Ycj5dZD8+XgoW8dVPS3uVZGj57Pr8ix3OXhMKGqcdO2QRAQaoyjw7t9dCkaJ8b7h39sY/5pFSSIdYAyyb9uPgJ1FPLueOqm3bZHVFcbiiA8/miiwGWPVEfK7zdEmFKMAkY2wYtWBeovKNVnCbuQ1Pd8CxvkCs5R9KnMfbU7bgJK8zkhlHwdtalmg2IS4yMuvYeL9S3QwL7fYcCjjTLCKwkj3frsnkRC5pGPHQ6/iVVbdsqAI70A1Uqcl15Jcpzg0Nc2EABjhbWO7gLpHpzMI5Alt+Tr+oWhe2M7wnBhuojgwASA10CnXT27GYXziIzr8d3P+T0PVLD2WcvQeEUJoQySw6W8CIkaZEZG6YBWjrAkGcO6JB+YJ5UiJOCHA6W4pmwNkGR2oh6JMQCUikaFVywb1HMIGOINOBHymj4KkuywC2w6SXMD4OqJcsCmHSNcqjFvcT/22kYCtDE="