1130 lines
36 KiB
Go
1130 lines
36 KiB
Go
package ca
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import (
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"context"
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"crypto"
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/asn1"
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"errors"
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"fmt"
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"math/big"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/beeker1121/goque"
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ct "github.com/google/certificate-transparency-go"
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cttls "github.com/google/certificate-transparency-go/tls"
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ctx509 "github.com/google/certificate-transparency-go/x509"
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"github.com/jmhodges/clock"
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"github.com/prometheus/client_golang/prometheus"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/protobuf/types/known/emptypb"
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capb "github.com/letsencrypt/boulder/ca/proto"
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"github.com/letsencrypt/boulder/config"
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"github.com/letsencrypt/boulder/core"
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corepb "github.com/letsencrypt/boulder/core/proto"
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berrors "github.com/letsencrypt/boulder/errors"
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"github.com/letsencrypt/boulder/features"
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"github.com/letsencrypt/boulder/goodkey"
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"github.com/letsencrypt/boulder/issuance"
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"github.com/letsencrypt/boulder/linter"
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blog "github.com/letsencrypt/boulder/log"
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"github.com/letsencrypt/boulder/metrics"
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"github.com/letsencrypt/boulder/must"
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"github.com/letsencrypt/boulder/policy"
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sapb "github.com/letsencrypt/boulder/sa/proto"
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"github.com/letsencrypt/boulder/test"
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)
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func TestImplementation(t *testing.T) {
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test.AssertImplementsGRPCServer(t, &certificateAuthorityImpl{}, capb.UnimplementedCertificateAuthorityServer{})
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}
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var (
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// * Random public key
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// * CN = not-example.com
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// * DNSNames = not-example.com, www.not-example.com
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CNandSANCSR = mustRead("./testdata/cn_and_san.der.csr")
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// CSR generated by Go:
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// * Random public key
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// * CN = not-example.com
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// * Includes an extensionRequest attribute for a well-formed TLS Feature extension
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MustStapleCSR = mustRead("./testdata/must_staple.der.csr")
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// CSR generated by Go:
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// * Random public key
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// * CN = not-example.com
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// * Includes an extensionRequest attribute for an unknown extension with an
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// empty value. That extension's OID, 2.25.123456789, is on the UUID arc.
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// It isn't a real randomly-generated UUID because Go represents the
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// components of the OID as 32-bit integers, which aren't large enough to
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// hold a real 128-bit UUID; this doesn't matter as far as what we're
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// testing here is concerned.
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UnsupportedExtensionCSR = mustRead("./testdata/unsupported_extension.der.csr")
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// CSR generated by Go:
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// * Random public key
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// * CN = not-example.com
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// * Includes an extensionRequest attribute for the CT poison extension
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// with a valid NULL value.
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CTPoisonExtensionCSR = mustRead("./testdata/ct_poison_extension.der.csr")
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// CSR generated by Go:
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// * Random public key
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// * CN = not-example.com
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// * Includes an extensionRequest attribute for the CT poison extension
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// with an invalid empty value.
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CTPoisonExtensionEmptyCSR = mustRead("./testdata/ct_poison_extension_empty.der.csr")
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// CSR generated by Go:
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// * Random ECDSA public key.
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// * CN = [none]
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// * DNSNames = example.com, example2.com
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ECDSACSR = mustRead("./testdata/ecdsa.der.csr")
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// OIDExtensionCTPoison is defined in RFC 6962 s3.1.
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OIDExtensionCTPoison = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 3}
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// OIDExtensionSCTList is defined in RFC 6962 s3.3.
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OIDExtensionSCTList = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 2}
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)
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const arbitraryRegID int64 = 1001
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const yamlLoadErrMsg = "Error loading YAML bytes for ECDSA allow list:"
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// Useful key and certificate files.
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const caKeyFile = "../test/test-ca.key"
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const caCertFile = "../test/test-ca.pem"
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const caCertFile2 = "../test/test-ca2.pem"
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func mustRead(path string) []byte {
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return must.Do(os.ReadFile(path))
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}
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type testCtx struct {
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pa core.PolicyAuthority
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ocsp *ocspImpl
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crl *crlImpl
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certExpiry time.Duration
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certBackdate time.Duration
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serialPrefix int
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maxNames int
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boulderIssuers []*issuance.Issuer
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keyPolicy goodkey.KeyPolicy
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fc clock.FakeClock
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stats prometheus.Registerer
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signatureCount *prometheus.CounterVec
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signErrorCount *prometheus.CounterVec
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logger *blog.Mock
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}
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type mockSA struct {
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certificate core.Certificate
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}
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func (m *mockSA) AddCertificate(ctx context.Context, req *sapb.AddCertificateRequest, _ ...grpc.CallOption) (*emptypb.Empty, error) {
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m.certificate.DER = req.Der
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return nil, nil
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}
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func (m *mockSA) AddPrecertificate(ctx context.Context, req *sapb.AddCertificateRequest, _ ...grpc.CallOption) (*emptypb.Empty, error) {
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return &emptypb.Empty{}, nil
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}
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func (m *mockSA) AddSerial(ctx context.Context, req *sapb.AddSerialRequest, _ ...grpc.CallOption) (*emptypb.Empty, error) {
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return &emptypb.Empty{}, nil
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}
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func (m *mockSA) GetCertificate(ctx context.Context, req *sapb.Serial, _ ...grpc.CallOption) (*corepb.Certificate, error) {
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return nil, berrors.NotFoundError("cannot find the cert")
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}
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func (m *mockSA) SetCertificateStatusReady(ctx context.Context, req *sapb.Serial, _ ...grpc.CallOption) (*emptypb.Empty, error) {
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return nil, status.Error(codes.Unimplemented, "unimplemented mock")
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}
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var caKey crypto.Signer
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var caCert *issuance.Certificate
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var caCert2 *issuance.Certificate
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var caLinter *linter.Linter
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var caLinter2 *linter.Linter
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var ctx = context.Background()
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func init() {
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var err error
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caCert, caKey, err = issuance.LoadIssuer(issuance.IssuerLoc{
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File: caKeyFile,
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CertFile: caCertFile,
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})
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if err != nil {
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panic(fmt.Sprintf("Unable to load %q and %q: %s", caKeyFile, caCertFile, err))
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}
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caCert2, err = issuance.LoadCertificate(caCertFile2)
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if err != nil {
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panic(fmt.Sprintf("Unable to parse %q: %s", caCertFile2, err))
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}
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caLinter, _ = linter.New(caCert.Certificate, caKey, []string{"n_subject_common_name_included"})
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caLinter2, _ = linter.New(caCert2.Certificate, caKey, []string{"n_subject_common_name_included"})
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}
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func setup(t *testing.T) *testCtx {
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features.Reset()
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fc := clock.NewFake()
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fc.Add(1 * time.Hour)
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pa, err := policy.New(nil, blog.NewMock())
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test.AssertNotError(t, err, "Couldn't create PA")
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err = pa.SetHostnamePolicyFile("../test/hostname-policy.yaml")
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test.AssertNotError(t, err, "Couldn't set hostname policy")
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boulderProfile := func(rsa, ecdsa bool) *issuance.Profile {
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res, _ := issuance.NewProfile(
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issuance.ProfileConfig{
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AllowMustStaple: true,
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AllowCTPoison: true,
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AllowSCTList: true,
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AllowCommonName: true,
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Policies: []issuance.PolicyInformation{
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{OID: "2.23.140.1.2.1"},
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},
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MaxValidityPeriod: config.Duration{Duration: time.Hour * 8760},
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MaxValidityBackdate: config.Duration{Duration: time.Hour},
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},
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issuance.IssuerConfig{
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UseForECDSALeaves: ecdsa,
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UseForRSALeaves: rsa,
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IssuerURL: "http://not-example.com/issuer-url",
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OCSPURL: "http://not-example.com/ocsp",
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CRLURL: "http://not-example.com/crl",
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},
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)
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return res
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}
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boulderIssuers := []*issuance.Issuer{
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// Must list ECDSA-only issuer first, so it is the default for ECDSA.
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{
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Cert: caCert2,
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Signer: caKey,
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Profile: boulderProfile(false, true),
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Linter: caLinter2,
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Clk: fc,
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},
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{
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Cert: caCert,
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Signer: caKey,
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Profile: boulderProfile(true, true),
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Linter: caLinter,
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Clk: fc,
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},
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}
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keyPolicy := goodkey.KeyPolicy{
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AllowRSA: true,
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AllowECDSANISTP256: true,
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AllowECDSANISTP384: true,
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}
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signatureCount := prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "signatures",
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Help: "Number of signatures",
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},
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[]string{"purpose", "issuer"})
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signErrorCount := prometheus.NewCounterVec(prometheus.CounterOpts{
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Name: "signature_errors",
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Help: "A counter of signature errors labelled by error type",
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}, []string{"type"})
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ocsp, err := NewOCSPImpl(
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boulderIssuers,
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time.Hour,
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0,
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time.Second,
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blog.NewMock(),
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metrics.NoopRegisterer,
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signatureCount,
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signErrorCount,
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fc,
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)
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test.AssertNotError(t, err, "Failed to create ocsp impl")
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crl, err := NewCRLImpl(
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boulderIssuers,
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time.Hour,
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"http://c.boulder.test",
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100,
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blog.NewMock(),
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)
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test.AssertNotError(t, err, "Failed to create crl impl")
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return &testCtx{
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pa: pa,
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ocsp: ocsp,
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crl: crl,
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certExpiry: 8760 * time.Hour,
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certBackdate: time.Hour,
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serialPrefix: 17,
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maxNames: 2,
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boulderIssuers: boulderIssuers,
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keyPolicy: keyPolicy,
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fc: fc,
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stats: metrics.NoopRegisterer,
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signatureCount: signatureCount,
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signErrorCount: signErrorCount,
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logger: blog.NewMock(),
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}
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}
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func TestFailNoSerialPrefix(t *testing.T) {
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testCtx := setup(t)
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_, err := NewCertificateAuthorityImpl(
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nil,
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nil,
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nil,
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nil,
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testCtx.certExpiry,
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testCtx.certBackdate,
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0,
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testCtx.maxNames,
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testCtx.keyPolicy,
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nil,
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testCtx.logger,
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testCtx.stats,
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nil,
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nil,
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testCtx.fc)
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test.AssertError(t, err, "CA should have failed with no SerialPrefix")
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}
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type TestCertificateIssuance struct {
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ca *certificateAuthorityImpl
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sa *mockSA
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req *x509.CertificateRequest
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certDER []byte
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cert *x509.Certificate
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}
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func TestIssuePrecertificate(t *testing.T) {
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testCases := []struct {
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name string
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csr []byte
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subTest func(t *testing.T, i *TestCertificateIssuance)
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}{
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{"IssuePrecertificate", CNandSANCSR, issueCertificateSubTestIssuePrecertificate},
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{"ValidityUsesCAClock", CNandSANCSR, issueCertificateSubTestValidityUsesCAClock},
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{"ProfileSelectionRSA", CNandSANCSR, issueCertificateSubTestProfileSelectionRSA},
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{"ProfileSelectionECDSA", ECDSACSR, issueCertificateSubTestProfileSelectionECDSA},
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{"MustStaple", MustStapleCSR, issueCertificateSubTestMustStaple},
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{"UnknownExtension", UnsupportedExtensionCSR, issueCertificateSubTestUnknownExtension},
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{"CTPoisonExtension", CTPoisonExtensionCSR, issueCertificateSubTestCTPoisonExtension},
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{"CTPoisonExtensionEmpty", CTPoisonExtensionEmptyCSR, issueCertificateSubTestCTPoisonExtension},
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}
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for _, testCase := range testCases {
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// The loop through the issuance modes must be inside the loop through
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// |testCases| because the "certificate-for-precertificate" tests use
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// the precertificates previously generated from the preceding
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// "precertificate" test.
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for _, mode := range []string{"precertificate", "certificate-for-precertificate"} {
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ca, sa := issueCertificateSubTestSetup(t)
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t.Run(fmt.Sprintf("%s - %s", mode, testCase.name), func(t *testing.T) {
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req, err := x509.ParseCertificateRequest(testCase.csr)
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test.AssertNotError(t, err, "Certificate request failed to parse")
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issueReq := &capb.IssueCertificateRequest{Csr: testCase.csr, RegistrationID: arbitraryRegID}
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var certDER []byte
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response, err := ca.IssuePrecertificate(ctx, issueReq)
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test.AssertNotError(t, err, "Failed to issue precertificate")
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certDER = response.DER
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cert, err := x509.ParseCertificate(certDER)
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test.AssertNotError(t, err, "Certificate failed to parse")
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poisonExtension := findExtension(cert.Extensions, OIDExtensionCTPoison)
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test.AssertNotNil(t, poisonExtension, "Precert doesn't contain poison extension")
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if poisonExtension != nil {
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test.AssertEquals(t, poisonExtension.Critical, true)
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test.AssertDeepEquals(t, poisonExtension.Value, []byte{0x05, 0x00}) // ASN.1 DER NULL
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}
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i := TestCertificateIssuance{
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ca: ca,
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sa: sa,
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req: req,
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certDER: certDER,
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cert: cert,
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}
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testCase.subTest(t, &i)
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})
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}
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}
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}
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func makeECDSAAllowListBytes(regID int64) []byte {
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regIDBytes := []byte(fmt.Sprintf("%d", regID))
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contents := []byte(`
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- `)
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return append(contents, regIDBytes...)
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}
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func issueCertificateSubTestSetup(t *testing.T) (*certificateAuthorityImpl, *mockSA) {
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testCtx := setup(t)
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sa := &mockSA{}
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ca, err := NewCertificateAuthorityImpl(
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sa,
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testCtx.pa,
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testCtx.boulderIssuers,
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&ECDSAAllowList{},
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testCtx.certExpiry,
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testCtx.certBackdate,
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testCtx.serialPrefix,
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testCtx.maxNames,
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testCtx.keyPolicy,
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nil,
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testCtx.logger,
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testCtx.stats,
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testCtx.signatureCount,
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testCtx.signErrorCount,
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testCtx.fc)
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test.AssertNotError(t, err, "Failed to create CA")
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return ca, sa
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}
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func issueCertificateSubTestIssuePrecertificate(t *testing.T, i *TestCertificateIssuance) {
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cert := i.cert
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test.AssertEquals(t, cert.Subject.CommonName, "not-example.com")
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if len(cert.DNSNames) == 1 {
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if cert.DNSNames[0] != "not-example.com" {
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t.Errorf("Improper list of domain names %v", cert.DNSNames)
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}
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t.Errorf("Improper list of domain names %v", cert.DNSNames)
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}
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if len(cert.Subject.Country) > 0 {
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t.Errorf("Subject contained unauthorized values: %v", cert.Subject)
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}
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}
|
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|
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func issueCertificateSubTestValidityUsesCAClock(t *testing.T, i *TestCertificateIssuance) {
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test.AssertEquals(t, i.cert.NotBefore, i.ca.clk.Now().Add(-1*i.ca.backdate))
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test.AssertEquals(t, i.cert.NotAfter.Add(time.Second).Sub(i.cert.NotBefore), i.ca.validityPeriod)
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}
|
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|
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// Test failure mode when no issuers are present.
|
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func TestNoIssuers(t *testing.T) {
|
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testCtx := setup(t)
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sa := &mockSA{}
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_, err := NewCertificateAuthorityImpl(
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sa,
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testCtx.pa,
|
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nil, // No issuers
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nil,
|
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testCtx.certExpiry,
|
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testCtx.certBackdate,
|
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testCtx.serialPrefix,
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testCtx.maxNames,
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testCtx.keyPolicy,
|
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nil,
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testCtx.logger,
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testCtx.stats,
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testCtx.signatureCount,
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testCtx.signErrorCount,
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testCtx.fc)
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test.AssertError(t, err, "No issuers found during CA construction.")
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test.AssertEquals(t, err.Error(), "must have at least one issuer")
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}
|
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|
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// Test issuing when multiple issuers are present.
|
|
func TestMultipleIssuers(t *testing.T) {
|
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testCtx := setup(t)
|
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sa := &mockSA{}
|
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ca, err := NewCertificateAuthorityImpl(
|
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sa,
|
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testCtx.pa,
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testCtx.boulderIssuers,
|
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nil,
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testCtx.certExpiry,
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testCtx.certBackdate,
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testCtx.serialPrefix,
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testCtx.maxNames,
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testCtx.keyPolicy,
|
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nil,
|
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testCtx.logger,
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testCtx.stats,
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testCtx.signatureCount,
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testCtx.signErrorCount,
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testCtx.fc)
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test.AssertNotError(t, err, "Failed to remake CA")
|
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|
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// Test that an RSA CSR gets issuance from the RSA issuer, caCert.
|
|
issuedCert, err := ca.IssuePrecertificate(ctx, &capb.IssueCertificateRequest{Csr: CNandSANCSR, RegistrationID: arbitraryRegID})
|
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test.AssertNotError(t, err, "Failed to issue certificate")
|
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cert, err := x509.ParseCertificate(issuedCert.DER)
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test.AssertNotError(t, err, "Certificate failed to parse")
|
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err = cert.CheckSignatureFrom(caCert2.Certificate)
|
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test.AssertNotError(t, err, "Certificate failed signature validation")
|
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|
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// Test that an ECDSA CSR gets issuance from the ECDSA issuer, caCert2.
|
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issuedCert, err = ca.IssuePrecertificate(ctx, &capb.IssueCertificateRequest{Csr: ECDSACSR, RegistrationID: arbitraryRegID})
|
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test.AssertNotError(t, err, "Failed to issue certificate")
|
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cert, err = x509.ParseCertificate(issuedCert.DER)
|
|
test.AssertNotError(t, err, "Certificate failed to parse")
|
|
err = cert.CheckSignatureFrom(caCert2.Certificate)
|
|
test.AssertNotError(t, err, "Certificate failed signature validation")
|
|
}
|
|
|
|
func TestECDSAAllowList(t *testing.T) {
|
|
req := &capb.IssueCertificateRequest{Csr: ECDSACSR, RegistrationID: arbitraryRegID}
|
|
|
|
// With allowlist containing arbitraryRegID, issuance should come from ECDSA issuer.
|
|
ca, _ := issueCertificateSubTestSetup(t)
|
|
contents := makeECDSAAllowListBytes(arbitraryRegID)
|
|
err := ca.ecdsaAllowList.Update(contents)
|
|
if err != nil {
|
|
t.Errorf("%s %s", yamlLoadErrMsg, err)
|
|
t.FailNow()
|
|
}
|
|
result, err := ca.IssuePrecertificate(ctx, req)
|
|
test.AssertNotError(t, err, "Failed to issue certificate")
|
|
cert, err := x509.ParseCertificate(result.DER)
|
|
test.AssertNotError(t, err, "Certificate failed to parse")
|
|
test.AssertByteEquals(t, cert.RawIssuer, caCert2.RawSubject)
|
|
|
|
// Attempts to update the allow list with malformed YAML should
|
|
// fail, but the allowlist should still contain arbitraryRegID, so
|
|
// issuance should come from ECDSA issuer
|
|
malformed_yaml := []byte(`
|
|
)(\/=`)
|
|
err = ca.ecdsaAllowList.Update(malformed_yaml)
|
|
test.AssertError(t, err, "Update method accepted malformed YAML")
|
|
result, err = ca.IssuePrecertificate(ctx, req)
|
|
test.AssertNotError(t, err, "Failed to issue certificate after Update was called with malformed YAML")
|
|
cert, err = x509.ParseCertificate(result.DER)
|
|
test.AssertNotError(t, err, "Certificate failed to parse")
|
|
test.AssertByteEquals(t, cert.RawIssuer, caCert2.RawSubject)
|
|
|
|
// With allowlist not containing arbitraryRegID, issuance should fall back to RSA issuer.
|
|
contents = makeECDSAAllowListBytes(int64(2002))
|
|
err = ca.ecdsaAllowList.Update(contents)
|
|
if err != nil {
|
|
t.Errorf("%s %s", yamlLoadErrMsg, err)
|
|
t.FailNow()
|
|
}
|
|
result, err = ca.IssuePrecertificate(ctx, req)
|
|
test.AssertNotError(t, err, "Failed to issue certificate")
|
|
cert, err = x509.ParseCertificate(result.DER)
|
|
test.AssertNotError(t, err, "Certificate failed to parse")
|
|
test.AssertByteEquals(t, cert.RawIssuer, caCert.RawSubject)
|
|
|
|
// With empty allowlist but ECDSAForAll enabled, issuance should come from ECDSA issuer.
|
|
ca, _ = issueCertificateSubTestSetup(t)
|
|
_ = features.Set(map[string]bool{"ECDSAForAll": true})
|
|
defer features.Reset()
|
|
result, err = ca.IssuePrecertificate(ctx, req)
|
|
test.AssertNotError(t, err, "Failed to issue certificate")
|
|
cert, err = x509.ParseCertificate(result.DER)
|
|
test.AssertNotError(t, err, "Certificate failed to parse")
|
|
test.AssertByteEquals(t, cert.RawIssuer, caCert2.RawSubject)
|
|
}
|
|
|
|
func TestInvalidCSRs(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
csrPath string
|
|
check func(t *testing.T, ca *certificateAuthorityImpl, sa *mockSA)
|
|
errorMessage string
|
|
errorType berrors.ErrorType
|
|
}{
|
|
// Test that the CA rejects CSRs that have no names.
|
|
//
|
|
// CSR generated by Go:
|
|
// * Random RSA public key.
|
|
// * CN = [none]
|
|
// * DNSNames = [none]
|
|
{"RejectNoHostnames", "./testdata/no_names.der.csr", nil, "Issued certificate with no names", berrors.BadCSR},
|
|
|
|
// Test that the CA rejects CSRs that have too many names.
|
|
//
|
|
// CSR generated by Go:
|
|
// * Random public key
|
|
// * CN = [none]
|
|
// * DNSNames = not-example.com, www.not-example.com, mail.example.com
|
|
{"RejectTooManyHostnames", "./testdata/too_many_names.der.csr", nil, "Issued certificate with too many names", berrors.BadCSR},
|
|
|
|
// Test that the CA rejects CSRs that have public keys that are too short.
|
|
//
|
|
// CSR generated by Go:
|
|
// * Random public key -- 512 bits long
|
|
// * CN = (none)
|
|
// * DNSNames = not-example.com, www.not-example.com, mail.not-example.com
|
|
{"RejectShortKey", "./testdata/short_key.der.csr", nil, "Issued a certificate with too short a key.", berrors.BadCSR},
|
|
|
|
// Test that the CA rejects CSRs that have bad signature algorithms.
|
|
//
|
|
// CSR generated by Go:
|
|
// * Random public key -- 2048 bits long
|
|
// * CN = (none)
|
|
// * DNSNames = not-example.com, www.not-example.com, mail.not-example.com
|
|
// * Signature Algorithm: sha1WithRSAEncryption
|
|
{"RejectBadAlgorithm", "./testdata/bad_algorithm.der.csr", nil, "Issued a certificate based on a CSR with a bad signature algorithm.", berrors.BadCSR},
|
|
|
|
// CSR generated by Go:
|
|
// * Random RSA public key.
|
|
// * CN = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.com
|
|
// * DNSNames = [none]
|
|
{"RejectLongCommonName", "./testdata/long_cn.der.csr", nil, "Issued a certificate with a CN over 64 bytes.", berrors.BadCSR},
|
|
|
|
// CSR generated by OpenSSL:
|
|
// Edited signature to become invalid.
|
|
{"RejectWrongSignature", "./testdata/invalid_signature.der.csr", nil, "Issued a certificate based on a CSR with an invalid signature.", berrors.BadCSR},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
testCtx := setup(t)
|
|
sa := &mockSA{}
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
sa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
nil,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
testCtx.signatureCount,
|
|
testCtx.signErrorCount,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
serializedCSR := mustRead(testCase.csrPath)
|
|
issueReq := &capb.IssueCertificateRequest{Csr: serializedCSR, RegistrationID: arbitraryRegID}
|
|
_, err = ca.IssuePrecertificate(ctx, issueReq)
|
|
|
|
test.AssertErrorIs(t, err, testCase.errorType)
|
|
test.AssertMetricWithLabelsEquals(t, ca.signatureCount, prometheus.Labels{"purpose": "cert"}, 0)
|
|
|
|
test.AssertError(t, err, testCase.errorMessage)
|
|
if testCase.check != nil {
|
|
testCase.check(t, ca, sa)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestRejectValidityTooLong(t *testing.T) {
|
|
testCtx := setup(t)
|
|
sa := &mockSA{}
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
sa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
nil,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
nil,
|
|
nil,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
// This time is a few minutes before the notAfter in testdata/ca_cert.pem
|
|
future, err := time.Parse(time.RFC3339, "2025-02-10T00:30:00Z")
|
|
|
|
test.AssertNotError(t, err, "Failed to parse time")
|
|
testCtx.fc.Set(future)
|
|
// Test that the CA rejects CSRs that would expire after the intermediate cert
|
|
_, err = ca.IssuePrecertificate(ctx, &capb.IssueCertificateRequest{Csr: CNandSANCSR, RegistrationID: arbitraryRegID})
|
|
test.AssertError(t, err, "Cannot issue a certificate that expires after the intermediate certificate")
|
|
test.AssertErrorIs(t, err, berrors.InternalServer)
|
|
}
|
|
|
|
func issueCertificateSubTestProfileSelectionRSA(t *testing.T, i *TestCertificateIssuance) {
|
|
// Certificates for RSA keys should be marked as usable for signatures and encryption.
|
|
expectedKeyUsage := x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment
|
|
t.Logf("expected key usage %v, got %v", expectedKeyUsage, i.cert.KeyUsage)
|
|
test.AssertEquals(t, i.cert.KeyUsage, expectedKeyUsage)
|
|
}
|
|
|
|
func issueCertificateSubTestProfileSelectionECDSA(t *testing.T, i *TestCertificateIssuance) {
|
|
// Certificates for ECDSA keys should be marked as usable for only signatures.
|
|
expectedKeyUsage := x509.KeyUsageDigitalSignature
|
|
t.Logf("expected key usage %v, got %v", expectedKeyUsage, i.cert.KeyUsage)
|
|
test.AssertEquals(t, i.cert.KeyUsage, expectedKeyUsage)
|
|
}
|
|
|
|
func countMustStaple(t *testing.T, cert *x509.Certificate) (count int) {
|
|
oidTLSFeature := asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 24}
|
|
mustStapleFeatureValue := []byte{0x30, 0x03, 0x02, 0x01, 0x05}
|
|
for _, ext := range cert.Extensions {
|
|
if ext.Id.Equal(oidTLSFeature) {
|
|
test.Assert(t, !ext.Critical, "Extension was marked critical")
|
|
test.AssertByteEquals(t, ext.Value, mustStapleFeatureValue)
|
|
count++
|
|
}
|
|
}
|
|
return count
|
|
}
|
|
|
|
func issueCertificateSubTestMustStaple(t *testing.T, i *TestCertificateIssuance) {
|
|
test.AssertMetricWithLabelsEquals(t, i.ca.signatureCount, prometheus.Labels{"purpose": "precertificate"}, 1)
|
|
test.AssertEquals(t, countMustStaple(t, i.cert), 1)
|
|
}
|
|
|
|
func issueCertificateSubTestUnknownExtension(t *testing.T, i *TestCertificateIssuance) {
|
|
test.AssertMetricWithLabelsEquals(t, i.ca.signatureCount, prometheus.Labels{"purpose": "precertificate"}, 1)
|
|
|
|
// NOTE: The hard-coded value here will have to change over time as Boulder
|
|
// adds new (unrequested) extensions to certificates.
|
|
expectedExtensionCount := 10
|
|
test.AssertEquals(t, len(i.cert.Extensions), expectedExtensionCount)
|
|
}
|
|
|
|
func issueCertificateSubTestCTPoisonExtension(t *testing.T, i *TestCertificateIssuance) {
|
|
test.AssertMetricWithLabelsEquals(t, i.ca.signatureCount, prometheus.Labels{"purpose": "precertificate"}, 1)
|
|
}
|
|
|
|
func findExtension(extensions []pkix.Extension, id asn1.ObjectIdentifier) *pkix.Extension {
|
|
for _, ext := range extensions {
|
|
if ext.Id.Equal(id) {
|
|
return &ext
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func makeSCTs() ([][]byte, error) {
|
|
sct := ct.SignedCertificateTimestamp{
|
|
SCTVersion: 0,
|
|
Timestamp: 2020,
|
|
Signature: ct.DigitallySigned{
|
|
Signature: []byte{0},
|
|
},
|
|
}
|
|
sctBytes, err := cttls.Marshal(sct)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return [][]byte{sctBytes}, err
|
|
}
|
|
|
|
func TestIssueCertificateForPrecertificate(t *testing.T) {
|
|
testCtx := setup(t)
|
|
sa := &mockSA{}
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
sa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
nil,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
testCtx.signatureCount,
|
|
testCtx.signErrorCount,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
issueReq := capb.IssueCertificateRequest{Csr: CNandSANCSR, RegistrationID: arbitraryRegID, OrderID: 0}
|
|
precert, err := ca.IssuePrecertificate(ctx, &issueReq)
|
|
test.AssertNotError(t, err, "Failed to issue precert")
|
|
parsedPrecert, err := x509.ParseCertificate(precert.DER)
|
|
test.AssertNotError(t, err, "Failed to parse precert")
|
|
|
|
// Check for poison extension
|
|
poisonExtension := findExtension(parsedPrecert.Extensions, OIDExtensionCTPoison)
|
|
test.AssertNotNil(t, poisonExtension, "Couldn't find CTPoison extension")
|
|
test.AssertEquals(t, poisonExtension.Critical, true)
|
|
test.AssertDeepEquals(t, poisonExtension.Value, []byte{0x05, 0x00}) // ASN.1 DER NULL
|
|
|
|
sctBytes, err := makeSCTs()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
test.AssertNotError(t, err, "Failed to marshal SCT")
|
|
cert, err := ca.IssueCertificateForPrecertificate(ctx, &capb.IssueCertificateForPrecertificateRequest{
|
|
DER: precert.DER,
|
|
SCTs: sctBytes,
|
|
RegistrationID: arbitraryRegID,
|
|
OrderID: 0,
|
|
})
|
|
test.AssertNotError(t, err, "Failed to issue cert from precert")
|
|
parsedCert, err := x509.ParseCertificate(cert.Der)
|
|
test.AssertNotError(t, err, "Failed to parse cert")
|
|
|
|
// Check for SCT list extension
|
|
sctListExtension := findExtension(parsedCert.Extensions, OIDExtensionSCTList)
|
|
test.AssertNotNil(t, sctListExtension, "Couldn't find SCTList extension")
|
|
test.AssertEquals(t, sctListExtension.Critical, false)
|
|
var rawValue []byte
|
|
_, err = asn1.Unmarshal(sctListExtension.Value, &rawValue)
|
|
test.AssertNotError(t, err, "Failed to unmarshal extension value")
|
|
sctList, err := deserializeSCTList(rawValue)
|
|
test.AssertNotError(t, err, "Failed to deserialize SCT list")
|
|
test.Assert(t, len(sctList) == 1, fmt.Sprintf("Wrong number of SCTs, wanted: 1, got: %d", len(sctList)))
|
|
}
|
|
|
|
// deserializeSCTList deserializes a list of SCTs.
|
|
// Forked from github.com/cloudflare/cfssl/helpers
|
|
func deserializeSCTList(serializedSCTList []byte) ([]ct.SignedCertificateTimestamp, error) {
|
|
var sctList ctx509.SignedCertificateTimestampList
|
|
rest, err := cttls.Unmarshal(serializedSCTList, &sctList)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(rest) != 0 {
|
|
return nil, errors.New("serialized SCT list contained trailing garbage")
|
|
}
|
|
list := make([]ct.SignedCertificateTimestamp, len(sctList.SCTList))
|
|
for i, serializedSCT := range sctList.SCTList {
|
|
var sct ct.SignedCertificateTimestamp
|
|
rest, err := cttls.Unmarshal(serializedSCT.Val, &sct)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(rest) != 0 {
|
|
return nil, errors.New("serialized SCT contained trailing garbage")
|
|
}
|
|
list[i] = sct
|
|
}
|
|
return list, nil
|
|
}
|
|
|
|
// dupeSA returns a non-error to GetCertificate in order to simulate a request
|
|
// to issue a final certificate with a duplicate serial.
|
|
type dupeSA struct {
|
|
mockSA
|
|
}
|
|
|
|
func (m *dupeSA) GetCertificate(ctx context.Context, req *sapb.Serial, _ ...grpc.CallOption) (*corepb.Certificate, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// getCertErrorSA always returns an error for GetCertificate
|
|
type getCertErrorSA struct {
|
|
mockSA
|
|
}
|
|
|
|
func (m *getCertErrorSA) GetCertificate(ctx context.Context, req *sapb.Serial, _ ...grpc.CallOption) (*corepb.Certificate, error) {
|
|
return nil, fmt.Errorf("i don't like it")
|
|
}
|
|
|
|
func TestIssueCertificateForPrecertificateDuplicateSerial(t *testing.T) {
|
|
testCtx := setup(t)
|
|
sa := &dupeSA{}
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
sa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
nil,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
testCtx.signatureCount,
|
|
testCtx.signErrorCount,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
sctBytes, err := makeSCTs()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
issueReq := capb.IssueCertificateRequest{Csr: CNandSANCSR, RegistrationID: arbitraryRegID, OrderID: 0}
|
|
precert, err := ca.IssuePrecertificate(ctx, &issueReq)
|
|
test.AssertNotError(t, err, "Failed to issue precert")
|
|
_, err = ca.IssueCertificateForPrecertificate(ctx, &capb.IssueCertificateForPrecertificateRequest{
|
|
DER: precert.DER,
|
|
SCTs: sctBytes,
|
|
RegistrationID: arbitraryRegID,
|
|
OrderID: 0,
|
|
})
|
|
if err == nil {
|
|
t.Error("Expected error issuing duplicate serial but got none.")
|
|
}
|
|
if !strings.Contains(err.Error(), "issuance of duplicate final certificate requested") {
|
|
t.Errorf("Wrong type of error issuing duplicate serial. Expected 'issuance of duplicate', got '%s'", err)
|
|
}
|
|
|
|
// Now check what happens if there is an error (e.g. timeout) while checking
|
|
// for the duplicate.
|
|
errorsa := &getCertErrorSA{}
|
|
errorca, err := NewCertificateAuthorityImpl(
|
|
errorsa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
nil,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
testCtx.signatureCount,
|
|
testCtx.signErrorCount,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
_, err = errorca.IssueCertificateForPrecertificate(ctx, &capb.IssueCertificateForPrecertificateRequest{
|
|
DER: precert.DER,
|
|
SCTs: sctBytes,
|
|
RegistrationID: arbitraryRegID,
|
|
OrderID: 0,
|
|
})
|
|
if err == nil {
|
|
t.Fatal("Expected error issuing duplicate serial but got none.")
|
|
}
|
|
if !strings.Contains(err.Error(), "error checking for duplicate") {
|
|
t.Fatalf("Wrong type of error issuing duplicate serial. Expected 'error checking for duplicate', got '%s'", err)
|
|
}
|
|
}
|
|
|
|
type queueSA struct {
|
|
mockSA
|
|
|
|
fail bool
|
|
duplicate bool
|
|
|
|
issued time.Time
|
|
issuedPrecert time.Time
|
|
}
|
|
|
|
func (qsa *queueSA) AddCertificate(_ context.Context, req *sapb.AddCertificateRequest, _ ...grpc.CallOption) (*emptypb.Empty, error) {
|
|
if qsa.fail {
|
|
return nil, errors.New("bad")
|
|
} else if qsa.duplicate {
|
|
return nil, berrors.DuplicateError("is a dupe")
|
|
}
|
|
qsa.issued = time.Unix(0, req.Issued).UTC()
|
|
return nil, nil
|
|
}
|
|
|
|
func (qsa *queueSA) AddPrecertificate(ctx context.Context, req *sapb.AddCertificateRequest, _ ...grpc.CallOption) (*emptypb.Empty, error) {
|
|
if qsa.fail {
|
|
return nil, errors.New("bad")
|
|
} else if qsa.duplicate {
|
|
return nil, berrors.DuplicateError("is a dupe")
|
|
}
|
|
qsa.issuedPrecert = time.Unix(0, req.Issued).UTC()
|
|
return nil, nil
|
|
}
|
|
|
|
// TestPrecertOrphanQueue tests that IssuePrecertificate writes precertificates
|
|
// to the orphan queue if storage fails, and that `integrateOrphan` later
|
|
// successfully writes those precertificates to the database. To do this, it
|
|
// uses the `queueSA` mock, which allows us to flip on and off a "fail" bit that
|
|
// decides whether it errors in response to storage requests.
|
|
func TestPrecertOrphanQueue(t *testing.T) {
|
|
tmpDir := t.TempDir()
|
|
orphanQueue, err := goque.OpenQueue(tmpDir)
|
|
test.AssertNotError(t, err, "Failed to open orphaned certificate queue")
|
|
|
|
qsa := &queueSA{fail: true}
|
|
testCtx := setup(t)
|
|
fakeNow := time.Date(2019, 9, 20, 0, 0, 0, 0, time.UTC)
|
|
testCtx.fc.Set(fakeNow)
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
qsa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
orphanQueue,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
testCtx.signatureCount,
|
|
testCtx.signErrorCount,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
|
|
_, err = ca.IssuePrecertificate(context.Background(), &capb.IssueCertificateRequest{
|
|
RegistrationID: 1,
|
|
OrderID: 1,
|
|
Csr: CNandSANCSR,
|
|
})
|
|
test.AssertError(t, err, "Expected IssuePrecertificate to fail with `qsa.fail = true`")
|
|
|
|
matches := testCtx.logger.GetAllMatching(`orphaning precertificate.* regID=\[1\], orderID=\[1\]`)
|
|
if len(matches) != 1 {
|
|
t.Errorf("no log line, or incorrect log line for orphaned precertificate:\n%s",
|
|
strings.Join(testCtx.logger.GetAllMatching(".*"), "\n"))
|
|
}
|
|
|
|
test.AssertMetricWithLabelsEquals(
|
|
t, ca.orphanCount, prometheus.Labels{"type": "precert"}, 1)
|
|
|
|
qsa.fail = false
|
|
err = ca.integrateOrphan()
|
|
test.AssertNotError(t, err, "integrateOrphan failed")
|
|
if !qsa.issuedPrecert.Equal(fakeNow) {
|
|
t.Errorf("expected issued time to be %s, got %s", fakeNow, qsa.issuedPrecert)
|
|
}
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
|
|
test.AssertMetricWithLabelsEquals(
|
|
t, ca.adoptedOrphanCount, prometheus.Labels{"type": "precert"}, 1)
|
|
}
|
|
|
|
func TestOrphanQueue(t *testing.T) {
|
|
tmpDir := t.TempDir()
|
|
orphanQueue, err := goque.OpenQueue(tmpDir)
|
|
test.AssertNotError(t, err, "Failed to open orphaned certificate queue")
|
|
|
|
qsa := &queueSA{fail: true}
|
|
testCtx := setup(t)
|
|
fakeNow, err := time.Parse(time.ANSIC, "Mon Jan 2 15:04:05 2006")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
testCtx.fc.Set(fakeNow)
|
|
ca, err := NewCertificateAuthorityImpl(
|
|
qsa,
|
|
testCtx.pa,
|
|
testCtx.boulderIssuers,
|
|
nil,
|
|
testCtx.certExpiry,
|
|
testCtx.certBackdate,
|
|
testCtx.serialPrefix,
|
|
testCtx.maxNames,
|
|
testCtx.keyPolicy,
|
|
orphanQueue,
|
|
testCtx.logger,
|
|
testCtx.stats,
|
|
nil,
|
|
nil,
|
|
testCtx.fc)
|
|
test.AssertNotError(t, err, "Failed to create CA")
|
|
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
|
|
// generate basic test cert
|
|
k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
|
test.AssertNotError(t, err, "Failed to generate test key")
|
|
tmpl := &x509.Certificate{
|
|
SerialNumber: big.NewInt(1),
|
|
DNSNames: []string{"test.invalid"},
|
|
NotBefore: fakeNow.Add(-time.Hour),
|
|
}
|
|
certDER, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, k.Public(), k)
|
|
test.AssertNotError(t, err, "Failed to generate test cert")
|
|
err = ca.storeCertificate(
|
|
context.Background(),
|
|
1,
|
|
1,
|
|
tmpl.SerialNumber,
|
|
certDER,
|
|
1,
|
|
)
|
|
test.AssertError(t, err, "storeCertificate didn't fail when AddCertificate failed")
|
|
|
|
qsa.fail = false
|
|
err = ca.integrateOrphan()
|
|
test.AssertNotError(t, err, "integrateOrphan failed")
|
|
if !qsa.issued.Equal(fakeNow) {
|
|
t.Errorf("expected issued time to be %s, got %s", fakeNow, qsa.issued)
|
|
}
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
|
|
// test with a duplicate cert
|
|
ca.queueOrphan(&orphanedCert{
|
|
DER: certDER,
|
|
RegID: 1,
|
|
})
|
|
|
|
qsa.duplicate = true
|
|
err = ca.integrateOrphan()
|
|
test.AssertNotError(t, err, "integrateOrphan failed with duplicate cert")
|
|
if !qsa.issued.Equal(fakeNow) {
|
|
t.Errorf("expected issued time to be %s, got %s", fakeNow, qsa.issued)
|
|
}
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
|
|
// add cert to queue, and recreate queue to make sure it still has the cert
|
|
qsa.fail = true
|
|
qsa.duplicate = false
|
|
err = ca.storeCertificate(
|
|
context.Background(),
|
|
1,
|
|
1,
|
|
tmpl.SerialNumber,
|
|
certDER,
|
|
1,
|
|
)
|
|
test.AssertError(t, err, "storeCertificate didn't fail when AddCertificate failed")
|
|
err = orphanQueue.Close()
|
|
test.AssertNotError(t, err, "Failed to close the queue cleanly")
|
|
orphanQueue, err = goque.OpenQueue(tmpDir)
|
|
test.AssertNotError(t, err, "Failed to open orphaned certificate queue")
|
|
defer func() { _ = orphanQueue.Close() }()
|
|
ca.orphanQueue = orphanQueue
|
|
|
|
qsa.fail = false
|
|
err = ca.integrateOrphan()
|
|
test.AssertNotError(t, err, "integrateOrphan failed")
|
|
if !qsa.issued.Equal(fakeNow) {
|
|
t.Errorf("expected issued time to be %s, got %s", fakeNow, qsa.issued)
|
|
}
|
|
err = ca.integrateOrphan()
|
|
if err != goque.ErrEmpty {
|
|
t.Fatalf("Unexpected error, wanted %q, got %q", goque.ErrEmpty, err)
|
|
}
|
|
}
|