/// <summary>
/// Pkcs8>>Pkcs1
/// </summary>
/// <param name="privateKey">Pkcs8私钥</param>
/// <param name="format">是否转PEM格式</param>
/// <returns></returns>
public static string PrivateKeyPkcs8ToPkcs1(string privateKey, bool format = false)
{
var akp = RSAUtilities.GetAsymmetricKeyParameterFormAsn1PrivateKey(privateKey);
if (format)
{
var sw = new StringWriter();
var pWrt = new PemWriter(sw);
pWrt.WriteObject(akp);
pWrt.Writer.Close();
return(sw.ToString());
}
else
{
var privateKeyInfo = PrivateKeyInfoFactory.CreatePrivateKeyInfo(akp);
return(Base64.ToBase64String(privateKeyInfo.ParsePrivateKey().GetEncoded()));
}
}
public static string WritePkcs8PrivateKey(string privateKey)
{
if (privateKey.StartsWith("-----BEGIN PRIVATE KEY-----"))
{
return(privateKey);
}
var akp = RSAUtilities.GetAsymmetricKeyParameterFormAsn1PrivateKey(privateKey);
using (var sw = new StringWriter())
{
var pWrt = new PemWriter(sw);
var pkcs8 = new Pkcs8Generator(akp);
pWrt.WriteObject(pkcs8);
pWrt.Writer.Close();
return(sw.ToString());
}
}