c# - 使用私钥将 X509Certificate2 导出到字节数组

Question

我的商店中有一个 X509Certificate2 证书，我想将其导出到字节数组和私钥。证书字节数组必须这样，当我稍后从字节数组导入证书时，私钥将包含私钥。

我尝试了很多方法都没有成功导出带有私钥的证书。

X509Store store = new X509Store(StoreLocation.CurrentUser);      

store.Open(OpenFlags.ReadOnly);

X509Certificate2 cert = store.Certificates[1];

byte[] certBytes = cert.GetRawCertData(); // Obviously does not work!

是否可以将带私钥的证书成功导出为字节数组？

非常感谢您的帮助。

Answer 1

X509Certificate2 类的Export 函数允许您导出 带有字节数组私钥的证书。

以下代码演示了使用私钥导出证书:

X509Store store = new X509Store(StoreLocation.CurrentUser);

store.Open(OpenFlags.ReadOnly);

X509Certificate2 cert = store.Certificates[1];

// Export the certificate including the private key.
byte[] certBytes = cert.Export(X509ContentType.Pkcs12);

要保护导出的证书，请使用 Export 函数的以下重载:

byte[] certBytes = cert.Export(X509ContentType.Pkcs12, "SecurePassword");

开始编辑

要导入证书，请使用以下代码:

X509Certificate2 certToImport = new X509Certificate2(arr, "SecurePassword");

// To mark it as exportable use the following constructor:
X509Certificate2 certToImport = new X509Certificate2(arr, "SecurePassword", X509KeyStorageFlags.Exportable);
// certToImport.HasPrivateKey must be true here!!

X509Store store2 = new X509Store(StoreName.TrustedPublisher,
                                 StoreLocation.CurrentUser);
store2.Open(OpenFlags.MaxAllowed);

store2.Add(certToImport);
store2.Close();

结束编辑