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// Copyright The Notary Project Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package x509
import (
"crypto/x509"
"crypto/x509/pkix"
"testing"
)
func TestValidTimestampingChain(t *testing.T) {
timestamp_leaf, err := readSingleCertificate("testdata/timestamp_leaf.crt")
if err != nil {
t.Fatal(err)
}
timestamp_intermediate, err := readSingleCertificate("testdata/timestamp_intermediate.crt")
if err != nil {
t.Fatal(err)
}
timestamp_root, err := readSingleCertificate("testdata/timestamp_root.crt")
if err != nil {
t.Fatal(err)
}
certChain := []*x509.Certificate{timestamp_leaf, timestamp_intermediate, timestamp_root}
err = ValidateTimestampingCertChain(certChain)
if err != nil {
t.Fatal(err)
}
}
func TestInvalidTimestampingChain(t *testing.T) {
timestamp_leaf, err := readSingleCertificate("testdata/timestamp_leaf.crt")
if err != nil {
t.Fatal(err)
}
timestamp_intermediate, err := readSingleCertificate("testdata/timestamp_intermediate.crt")
if err != nil {
t.Fatal(err)
}
timestamp_root, err := readSingleCertificate("testdata/timestamp_root.crt")
if err != nil {
t.Fatal(err)
}
expectedErr := "certificate chain must contain at least one certificate"
err = ValidateTimestampingCertChain([]*x509.Certificate{})
assertErrorEqual(expectedErr, err, t)
certChain := []*x509.Certificate{timestamp_leaf, intermediateCert2, intermediateCert1, rootCert}
expectedErr = "invalid certificates or certificate with subject \"CN=DigiCert Timestamp 2023,O=DigiCert\\\\, Inc.,C=US\" is not issued by \"CN=Intermediate2\". Error: crypto/rsa: verification error"
err = ValidateTimestampingCertChain(certChain)
assertErrorEqual(expectedErr, err, t)
certChain = []*x509.Certificate{timestamp_leaf}
expectedErr = "invalid self-signed certificate. subject: \"CN=DigiCert Timestamp 2023,O=DigiCert\\\\, Inc.,C=US\". Error: crypto/rsa: verification error"
err = ValidateTimestampingCertChain(certChain)
assertErrorEqual(expectedErr, err, t)
certChain = []*x509.Certificate{timestamp_leaf, timestamp_intermediate}
expectedErr = "root certificate with subject \"CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\\\\, Inc.,C=US\" is invalid or not self-signed. Certificate chain must end with a valid self-signed root certificate. Error: crypto/rsa: verification error"
err = ValidateTimestampingCertChain(certChain)
assertErrorEqual(expectedErr, err, t)
certChain = []*x509.Certificate{timestamp_root, timestamp_root}
expectedErr = "leaf certificate with subject \"CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US\" is self-signed. Certificate chain must not contain self-signed leaf certificate"
err = ValidateTimestampingCertChain(certChain)
assertErrorEqual(expectedErr, err, t)
certChain = []*x509.Certificate{timestamp_leaf, timestamp_intermediate, timestamp_root, timestamp_root}
expectedErr = "intermediate certificate with subject \"CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US\" is self-signed. Certificate chain must not contain self-signed intermediate certificate"
err = ValidateTimestampingCertChain(certChain)
assertErrorEqual(expectedErr, err, t)
}
var ekuNonCriticalTimeLeafPem = "-----BEGIN CERTIFICATE-----\n" +
"MIIC5TCCAc2gAwIBAgIBATANBgkqhkiG9w0BAQsFADAYMRYwFAYDVQQDDA1JbnRl\n" +
"cm1lZGlhdGUyMCAXDTIyMDYzMDE5MjAwNFoYDzMwMjExMDMxMTkyMDA0WjAbMRkw\n" +
"FwYDVQQDDBBUaW1lU3RhbXBpbmdMZWFmMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A\n" +
"MIIBCgKCAQEAyx2ispY5C5sQCiLAuCUTp4wv+fpgHwzE4an8eqi+Jrm0tEabTdzP\n" +
"IdZFRYPZbgRx+D9DKeN76f+rt51G9gOX77fYWyIXgnVL4UAYNlQj58hqZ0IO22vT\n" +
"nIFiDbJoSPuamQaLZNuluiirUwJv1uqSQiEnWHC4LhKwNOo4UHH5S3XkkYRpdFBF\n" +
"Tm4uOTaQJA9dfCh+0wbe7ZlEjDiuk1GTSQu69EPIl4IK7aEWqdvk2z1Pg4YkgJZX\n" +
"mWzkECNayUiBeHj7lL5ZnyZeki2l77WzXe/j5dgQ9E2+63hfBew+O/XeS/Tm/TyQ\n" +
"0P8bQre6vbn9820Cpyg82fd1+5bwYedwVwIDAQABozUwMzAOBgNVHQ8BAf8EBAMC\n" +
"B4AwDAYDVR0TAQH/BAIwADATBgNVHSUEDDAKBggrBgEFBQcDCDANBgkqhkiG9w0B\n" +
"AQsFAAOCAQEAB9Z80K17p4J3VCqVcKyhgkzzYPoKiBWFThVwxS2+TKY0x4zezSAT\n" +
"69Nmf7NkVH4XyvCEUfgdWYst4t41rH3b5MTMOc5/nPeMccDWT0eZRivodF5hFWZd\n" +
"2QSFiMHmfUhnglY0ocLbfKeI/QoSGiPyBWO0SK6qOszRi14lP0TpgvgNDtMY/Jj5\n" +
"AyINT6o0tyYJvYE23/7ysT3U6pq50M4vOZiSuRys83As/qvlDIDKe8OVlDt6xRvr\n" +
"fqdMFWSk6Iay2OCfYcjUbTutMzSI7dvhDivn5FKnNA6M7QD1lqb7V9fymgrQTsth\n" +
"We9tUxypXgMjYN74QEHYxEAIfNOTeBppWw==\n" +
"-----END CERTIFICATE-----"
var ekuNonCriticalTimeLeafCert = parseCertificateFromString(ekuNonCriticalTimeLeafPem)
func TestTimestampLeafWithNonCriticalEKU(t *testing.T) {
expectedErr := "timestamp signing certificate with subject \"CN=TimeStampingLeaf\" must have extended key usage extension marked as critical"
err := validateTimestampingLeafCertificate(ekuNonCriticalTimeLeafCert)
assertErrorEqual(expectedErr, err, t)
}
var ekuWrongValuesTimeLeafPem = "-----BEGIN CERTIFICATE-----\n" +
"MIIC6jCCAdKgAwIBAgIJAJOlT2AUbsZiMA0GCSqGSIb3DQEBCwUAMBAxDjAMBgNV\n" +
"BAMMBUhlbGxvMCAXDTIyMDYyNTAzMTcyM1oYDzIxMjIwNjAxMDMxNzIzWjAQMQ4w\n" +
"DAYDVQQDDAVIZWxsbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOZe\n" +
"9zjKWNlFD/HGrkaAI9mh9Fw1gF8S2tphQD/aPd9IS4HJJEQRkKz5oeHj2g1Y6TEk\n" +
"plODrKlnoLe+ZFNFFD4xMVV55aQSJDTljCLPwIZt2VewlaAhIImYihOJvJFST1zW\n" +
"K2NW4eLxt0awbE/YzL6beH4A6UsrcXcnN0KKiu6YD1/d5TezJoTQBMo6fboltuce\n" +
"P/+RMxyqpvip7nyFF3Yrmhumb7DKJrmSfSjdziI5QoUqzqVgqJ8pXMRb3ZOKb499\n" +
"d9RRxGkox93iOdSSlaP3FEl8VK9KqnD+MNhjVZbeYTfjm9UVdp91VLP1E/yfMXz+\n" +
"fZhYkublK6v3GWSEcb0CAwEAAaNFMEMwDgYDVR0PAQH/BAQDAgeAMDEGA1UdJQQq\n" +
"MCgGCCsGAQUFBwMIBggrBgEFBQcDAQYIKwYBBQUHAwQGCCsGAQUFBwMIMA0GCSqG\n" +
"SIb3DQEBCwUAA4IBAQCaQZ+ws93F1azT6SKBYvBRBCj07+2DtNI83Q53GxrVy2vU\n" +
"rP1ULX7beY87amy6kQcqnQ0QSaoLK+CDL88pPxR2PBzCauz70rMRY8O/KrrLcfwd\n" +
"D5HM9DcbneqXQyfh0ZQpt0wK5wux0MFh2sAEv76jgYBMHq2zc+19skAW/oBtTUty\n" +
"i/IdOVeO589KXwJzEJmKiswN9zKo9KGgAlKS05zohjv40AOCAs+8Q2lOJjRMq4Ji\n" +
"z21qor5e/5+NnGY+2p4A7PbN+QnDdRC3y16dESRN50o5x6CwUWQO74+uRjrAWYCm\n" +
"f/Y7qdOf5zZbY21n8KnLcFOsKhwv4t40Y/LQqN/L\n" +
"-----END CERTIFICATE-----"
var ekuWrongValuesTimeLeaf = parseCertificateFromString(ekuWrongValuesTimeLeafPem)
func TestFailEkuWrongValuesTimeLeaf(t *testing.T) {
err := validateTimestampingLeafCertificate(ekuWrongValuesTimeLeaf)
assertErrorEqual("timestamp signing certificate with subject \"CN=Hello\" must have and only have Timestamping as extended key usage", err, t)
}
var ekuMissingTimestampingLeafPem = "-----BEGIN CERTIFICATE-----\n" +
"MIICzDCCAbSgAwIBAgIJAJtYOfTu82KRMA0GCSqGSIb3DQEBCwUAMBAxDjAMBgNV\n" +
"BAMMBUhlbGxvMCAXDTIyMDYyNTAzMTMxM1oYDzIxMjIwNjAxMDMxMzEzWjAQMQ4w\n" +
"DAYDVQQDDAVIZWxsbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALQN\n" +
"GJKHE6cdcmrHkxXOTawWgYEF1X42IOK7gAXFg+KBPHPw4npDjUclLX0sY3XjBuhT\n" +
"wI5DRATSNTV2ba3+DpFuH3D+Hbfjil91AG8XzormUPOOCbZqJxSKYAIZfPQGdUvV\n" +
"UBulnbDsije00HoNZ03IvdjxbB/9y6a3qQEvIUaEjaZBH3s/YYQIiEmKu6eDpj3R\n" +
"PnUcrP5b7jBMA/Vb8joLM0InzqGPRLPFAPf5womAjxZSsrgyVeA1xSm+6KtXMmaA\n" +
"IKYwNVAOnhfqgUk0tlaRyXXji2T1M9w9l5XUA1iNOMcjTUTfFa5KW7c0TLTcK6vW\n" +
"Eq1BEXUEw7HP7DQUjycCAwEAAaMnMCUwDgYDVR0PAQH/BAQDAgeAMBMGA1UdJQQM\n" +
"MAoGCCsGAQUFBwMJMA0GCSqGSIb3DQEBCwUAA4IBAQCSr6A/YAMd6lisgipR0UCA\n" +
"4Ye/1kl0jglT7stLTfftSeXgCKXYlwus9VSpZBtg+RvJkihlLNT6vtsiTMfJUBBc\n" +
"jALLKYUQuCw9sReAbfvecIfc2bUve6X8isLWDVnxlC1udx2WG3lIfW2Sgs/dYeZW\n" +
"yqLTagK5GLlDfg9gBpHLmQYOmshhI85ObOioUAiWTW+S6mx4Bphgl7dlcUabJxEJ\n" +
"MpJJiGPkUUUCuYkp31E7S4JRbSXSkaHefZxB5fvhlbnACeqnOtMG/IKaTjCUemkK\n" +
"ZRmJ0Al1PTWs+Dn8zLzexP/LkmQZU/FUMxeat/dAnc2blDbVnAsvcvnutXGHoZH5\n" +
"-----END CERTIFICATE-----"
var ekuMissingTimestampingLeaf = parseCertificateFromString(ekuMissingTimestampingLeafPem)
func TestFailEkuMissingTimestampingLeaf(t *testing.T) {
err := validateTimestampingLeafCertificate(ekuMissingTimestampingLeaf)
assertErrorEqual("timestamp signing certificate with subject \"CN=Hello\" must have and only have Timestamping as extended key usage", err, t)
}
func TestTimestampingFailNoBasicConstraintsCa(t *testing.T) {
err := validateTimestampingCACertificate(noBasicConstraintsCa, 3)
assertErrorEqual("certificate with subject \"CN=Hello\": ca field in basic constraints must be present, critical, and set to true", err, t)
}
func TestTimestampingFailKuMissingCa(t *testing.T) {
err := validateTimestampingCACertificate(kuMissingCa, 3)
assertErrorEqual("certificate with subject \"CN=Hello\": key usage extension must be present", err, t)
}
func TestTimestampingFailInvalidPathLenCa(t *testing.T) {
err := validateTimestampingCACertificate(rootCert, 3)
assertErrorEqual("certificate with subject \"CN=Root\": expected path length of 3 but certificate has path length 2 instead", err, t)
}
func TestTimestampingFailKuNotCertSignCa(t *testing.T) {
err := validateTimestampingCACertificate(kuNotCertSignCa, 3)
assertErrorEqual("certificate with subject \"CN=Hello\": key usage must have the bit positions for key cert sign set", err, t)
}
func TestTimestampingFailWrongExtendedKeyUsage(t *testing.T) {
err := validateTimestampingLeafCertificate(validNoOptionsLeaf)
assertErrorEqual("timestamp signing certificate with subject \"CN=Hello\" must have and only have Timestamping as extended key usage", err, t)
}
func TestValidateTimestampingLeafCertificate(t *testing.T) {
err := validateTimestampingLeafCertificate(caTrueLeaf)
assertErrorEqual("certificate with subject \"CN=Hello\": if the basic constraints extension is present, the ca field must be set to false", err, t)
err = validateTimestampingLeafCertificate(kuNoDigitalSignatureLeaf)
assertErrorEqual("the certificate with subject \"CN=Hello\" is invalid. The key usage must have the bit positions for \"Digital Signature\" set", err, t)
cert := &x509.Certificate{
Subject: pkix.Name{CommonName: "Test CN"},
KeyUsage: x509.KeyUsageDigitalSignature,
}
err = validateTimestampingLeafCertificate(cert)
assertErrorEqual("certificate with subject \"CN=Test CN\": key usage extension must be present", err, t)
}
func TestEkuToString(t *testing.T) {
if ekuToString(x509.ExtKeyUsageAny) != "Any" {
t.Fatalf("expected Any")
}
if ekuToString(x509.ExtKeyUsageClientAuth) != "ClientAuth" {
t.Fatalf("expected ClientAuth")
}
if ekuToString(x509.ExtKeyUsageEmailProtection) != "EmailProtection" {
t.Fatalf("expected EmailProtection")
}
if ekuToString(x509.ExtKeyUsageCodeSigning) != "CodeSigning" {
t.Fatalf("expected CodeSigning")
}
if ekuToString(x509.ExtKeyUsageIPSECUser) != "7" {
t.Fatalf("expected 7")
}
}
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