public static void SavePem(this X509Certificate2 @this, string certFile, string privateKeyFile = null)
{
try
{
Directory.CreateDirectory(Path.GetDirectoryName(certFile));
if (!string.IsNullOrEmpty(privateKeyFile) && @this.HasPrivateKey)
{
Directory.CreateDirectory(Path.GetDirectoryName(privateKeyFile));
var p = @this.GetRSAPrivateKey().ExportParameters(true);
var key = new RsaPrivateCrtKeyParameters(
new Org.BouncyCastle.Math.BigInteger(1, p.Modulus), new Org.BouncyCastle.Math.BigInteger(1, p.Exponent), new Org.BouncyCastle.Math.BigInteger(1, p.D),
new Org.BouncyCastle.Math.BigInteger(1, p.P), new Org.BouncyCastle.Math.BigInteger(1, p.Q), new Org.BouncyCastle.Math.BigInteger(1, p.DP), new Org.BouncyCastle.Math.BigInteger(1, p.DQ),
new Org.BouncyCastle.Math.BigInteger(1, p.InverseQ));
using (var sw = new StreamWriter(privateKeyFile))
{
var pemWriter = new Org.BouncyCastle.OpenSsl.PemWriter(sw);
pemWriter.WriteObject(key);
}
}
File.WriteAllText(certFile, PemCertificateHelper.ExportCertificateToPEM(@this));
}
catch (Exception ex)
{
throw new Exception($"Certificate could not be saved. cert: {certFile} - key: {privateKeyFile}", ex);
}
}
public static void SavePem(this X509Certificate2 @this, out string cert, out string privateKey)
{
cert = string.Empty;
privateKey = string.Empty;
try
{
if (@this.HasPrivateKey)
{
var p = @this.GetRSAPrivateKey().ExportParameters(true);
var key = new RsaPrivateCrtKeyParameters(
new Org.BouncyCastle.Math.BigInteger(1, p.Modulus), new Org.BouncyCastle.Math.BigInteger(1, p.Exponent), new Org.BouncyCastle.Math.BigInteger(1, p.D),
new Org.BouncyCastle.Math.BigInteger(1, p.P), new Org.BouncyCastle.Math.BigInteger(1, p.Q), new Org.BouncyCastle.Math.BigInteger(1, p.DP), new Org.BouncyCastle.Math.BigInteger(1, p.DQ),
new Org.BouncyCastle.Math.BigInteger(1, p.InverseQ));
using (var stringWriter = new StringWriter())
{
var pemWriter = new Org.BouncyCastle.OpenSsl.PemWriter(stringWriter);
pemWriter.WriteObject(key);
privateKey = stringWriter.GetStringBuilder().ToString();
}
}
cert = PemCertificateHelper.ExportCertificateToPEM(@this);
}
catch (Exception ex)
{
throw new Exception($"Certificate could not be saved. ", ex);
}
}
