将证书导出为BASE-64编码的.cer

Question

我试图导出没有私钥的证书,如BASE-64编码文件,与从Windows导出它相同.从Windows导出时,我可以在记事本中打开.cer文件.

当我尝试以下操作并在记事本上打开时,我得到二进制数据......我认为它是......不可读的.

X509Certificate2 cert = new X509Certificate2("c:\\myCert.pfx", "test", X509KeyStorageFlags.Exportable);

File.WriteAllBytes("c:\\testcer.cer", cert.Export(X509ContentType.Cert));

我尝试删除'X509KeyStorageFlags.Exportable',但这不起作用.我错过了什么吗？

编辑 - 我试过了

File.WriteAllText("c:\\testcer.cer",Convert.ToBase64String(cert.Export(X509ContentType.Cert)))

然而,这似乎有效,错过了"-----开始证书-----"和"-----结束证书-----"

Answer 1

也许

/// <summary>
/// Export a certificate to a PEM format string
/// </summary>
/// <param name="cert">The certificate to export</param>
/// <returns>A PEM encoded string</returns>
public static string ExportToPEM(X509Certificate cert)
{
    StringBuilder builder = new StringBuilder();            

    builder.AppendLine("-----BEGIN CERTIFICATE-----");
    builder.AppendLine(Convert.ToBase64String(cert.Export(X509ContentType.Cert), Base64FormattingOptions.InsertLineBreaks));
    builder.AppendLine("-----END CERTIFICATE-----");

    return builder.ToString();
}

Answer 2

试试这个:

X509Certificate2 cerifikata = new X509Certificate2("C://certificate.pfx");
File.WriteAllBytes("D://Test.cer",cerifikata.Export(X509ContentType.Cert));