如何使用.net core c#保存pfx文件

问题描述

我已经创建了使用 pem 和私钥安装 pfx 证书的代码。 pfx 证书安装成功。但我需要将该 pfx 证书保存在指定位置（本地文件夹）。我的代码如下，

private static void Main(string[] args)
        {
            var builder = new ConfigurationBuilder()
                                  .SetBasePath(Directory.GetCurrentDirectory())
                                  .AddJsonFile("AppSettings.json",optional: true,reloadOnChange: true)
                                  .AddEnvironmentvariables();
            IConfigurationRoot configuration = builder.Build();

            var pfxConfig = new AppSettings();
            configuration.GetSection(Constants.AppSettings).Bind(pfxConfig);

            string pemFilePath = pfxConfig.PemFilePath;
            string privateKeyPath = pfxConfig.PrivateKeyPath;
            string pfxSavePath = pfxConfig.PfxSavePath;
            string pfxPassword = pfxConfig.PfxPassword;

            byte[] publicPemBytes = File.ReadAllBytes(pemFilePath);
            using var publicX509 = new X509Certificate2(publicPemBytes);
            var privateKeyText = File.ReadAllText(privateKeyPath);
            var privateKeyBlocks = privateKeyText.Split("-",StringSplitOptions.RemoveEmptyEntries);
            var privateKeyBytes = Convert.FromBase64String(privateKeyBlocks[1]);
            using RSA rsa = RSA.Create();
            if (privateKeyBlocks[0] == Constants.BeginPrivateKey)
            {
                rsa.ImportPkcs8PrivateKey(privateKeyBytes,out _);
            }
            else if (privateKeyBlocks[0] == Constants.BeginRsaPrivateKey)
            {
                rsa.ImportRSAPrivateKey(privateKeyBytes,out _);
            }

            var keyPair = publicX509.copyWithPrivateKey(rsa);
            X509Certificate2 pfxCertificate = new X509Certificate2(keyPair.Export(X509ContentType.Pfx));

            //pfxCertificate.Export(pfxSavePath,pfxPassword);

            //Installation of pfx certificate.
            X509Certificate2 x509Certificate2 = new X509Certificate2(pfxCertificate);
            X509Store x509Store = new X509Store(StoreName.My,StoreLocation.CurrentUser);
            x509Store.Open(OpenFlags.ReadWrite);
            x509Store.Add(x509Certificate2);
            x509Store.Close();
            Console.WriteLine(Constants.PfxInstallationSuccessMessage);

        }

应用设置json文件如下，

{
  "AppSettings": {
    "PemFilePath": "F:\\Certificate\\123certificate.pem.crt","PrivateKeyPath": "F:\\Certificate\\123private.pem.key","PfxSavePath": "F:\\Certificate\\sample.pfx","PfxPassword": "password123"
  }
}

如何使用c#将pfx证书保存在指定位置（本地系统）

解决方法

exports 返回代表您的证书的字节数组

将其写入文件：

byte[] certData = pfxCertificate.Export(X509ContentType.Pfx,"MyPassword");
File.WriteAllBytes(@"C:\MyCert.pfx",certData);