我需要构建一个自签名的x509证书,该证书通过C#代码在我的计算机上被识别为有效。
如果需要,可以使用管理员权限运行。
我当前的代码如下
public static X509Certificate2 GenerateCertificate(string name)
{
string subjectName = $"CN={name}";
using (RSA rsa = RSA.Create(2048))
{
CertificateRequest req = new CertificateRequest(
subjectName,
rsa,
HashAlgorithmName.SHA256,
RSASignaturePadding.Pkcs1);
req.CertificateExtensions.Add(
new X509BasicConstraintsExtension(false, false, 0, false));
req.CertificateExtensions.Add(
new X509KeyUsageExtension(
X509KeyUsageFlags.DigitalSignature | X509KeyUsageFlags.NonRepudiation,
false));
req.CertificateExtensions.Add(
new X509EnhancedKeyUsageExtension(
new OidCollection
{
new Oid("1.3.6.1.5.5.7.3.8")
},
true));
req.CertificateExtensions.Add(
new X509SubjectKeyIdentifierExtension(req.PublicKey, false));
return req.CreateSelfSigned(
DateTimeOffset.UtcNow.AddDays(-1),
DateTimeOffset.UtcNow.AddYears(50));
}
}
public static X509Certificate2 GetOrCreateCertificate(string serverName)
{
using (X509Store store = new X509Store(StoreLocation.LocalMachine))
{
X509Certificate2 certificate;
store.Open(OpenFlags.ReadWrite);
X509Certificate2Collection certificateCollection = store.Certificates.Find(X509FindType.FindBySubjectName, serverName, true);//With true, my certificates are not returned
if (certificateCollection.Count > 0)
{
certificate = certificateCollection[0];
return certificate;
}
certificate = GenerateCertificate(serverName);
store.Add(certificate);
return certificate;
}
}
当前,如果我进入Windows MMC,证书管理单元,则可以看到证书,但该证书被视为无效。
我想念什么?
编辑
答案 0 :(得分:1)
您遇到的问题似乎是系统不信任新证书。
为了得到信任,证书链的根必须在以下存储之一中表示:
(还有其他一些商店,用于域管理的根权限)
所以做完之后
Set<String> namesInList2 = list2.stream().map(ObjectClass::getName).collect(toSet());
list1.removeIf(o -> namesInList2.contains(o.getName());
您也想做
certificate = GenerateCertificate(serverName);
store.Add(certificate);
现在,系统将能够验证(单节点)链到受信任的证书,并且Find上的using (X509Store rootStore = new X509Store(StoreName.Root, StoreLocation.LocalMachine))
using (X509Certificate2 withoutPrivateKey = new X509Certificate2(certificate.RawData))
{
rootStore.Open(OpenFlags.ReadWrite);
rootStore.Add(withoutPrivateKey);
}
约束将认为证书是“有效的”(对于该方法,表示受链信任且未过期)。