C#具有CERTENROLL.dll的非自签名客户端证书无法验证

Question

这是对C# Generate a non self signed client CX509Certificate Request without a CA using the certenroll.dll的跟进

我正在尝试创建一个由我自己签名的CA签名的客户证书，就像上面的问题一样。我可以使用makecert.exe创建所需的证书，而不会出现问题(它们显示为可信的)。我试图在C#中做同样的事情。证书被创建并放置在机器的My存储中。自签名CA还安装在机器的Trusted存储中。当我打开它们时，他们会说：

Windows没有足够的信息来验证此证书。

帮助?

代码：

// create DN
var dn = new CX500DistinguishedName();
dn.Encode("CN=Demo Cert", X500NameFlags.XCN_CERT_NAME_STR_NONE);

// create prvate key
var pk = new CX509PrivateKey();
pk.MachineContext = true;
pk.Length = 1024;
pk.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
pk.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
pk.Create();

// use SHA512
var hash = new CObjectId();
hash.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID, ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY, AlgorithmFlags.AlgorithmFlagsNone, "SHA512");

// EKU
var oid = new CObjectId();
oid.InitializeFromValue("1.3.6.1.5.5.7.3.2");
var oidlist = new CObjectIds();
oidlist.Add(oid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);

// Initialize the signer
var TheCA = GimmeTheCA(); // method returns my self signed CA as X509Certificate2
ISignerCertificate signer = new CSignerCertificate();
signer.Initialize(true, X509PrivateKeyVerify.VerifyNone, EncodingType.XCN_CRYPT_STRING_HEX, TheCA.GetRawCertDataString());

// Root Dn
var Rootdn = new CX500DistinguishedName();
Rootdn.Encode(TheCA.Subject, X500NameFlags.XCN_CERT_NAME_STR_NONE);

// Cert Request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, pk, "");
cert.Subject = dn;
cert.Issuer = Rootdn;
cert.SignerCertificate = (CSignerCertificate)signer;
cert.NotBefore = DateTime.Now;
cert.NotAfter = new DateTime(2020, 1, 1);
cert.X509Extensions.Add((CX509Extension)eku);
cert.HashAlgorithm = hash;
cert.Encode();

// Enrollment
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert);
enroll.CertificateFriendlyName = "Intel IPT";
string csr = enroll.CreateRequest();

// Install
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedRoot, csr, EncodingType.XCN_CRYPT_STRING_BASE64, "");

Answer 1

你可以尝试：

• pk.KeySpec = X509KeySpec.XCN_AT_SIGNATURE；
• X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES；= pk.KeyUsage
• 使用提升的特权运行应用程序(以管理员身份运行它)。
• 在"Computer\Personal“("MY")存储中放置CA证书的副本(但将原始证书保存在"Computer\Trusted .Auth”中。(“根”)商店)