/// <summary>
/// Export RSA private key
/// </summary>
/// <param name="rsa"></param>
/// <param name="type"></param>
/// <param name="usePemFormat">Only valid if the private key type is PKCS#1 and PKCS#8.</param>
/// <returns></returns>
public static string ExportPrivateKey(this RSA rsa, RSAKeyType type, bool usePemFormat = false)
{
var key = string.Empty;
switch (type)
{
case RSAKeyType.Pkcs1:
key = Convert.ToBase64String(rsa.ExportRSAPrivateKey());
break;
case RSAKeyType.Pkcs8:
key = Convert.ToBase64String(rsa.ExportPkcs8PrivateKey());
break;
case RSAKeyType.Xml:
key = rsa.ExportXmlPrivateKey();
break;
}
if (usePemFormat && type != RSAKeyType.Xml)
{
key = PemFormatUtil.GetPrivateKeyFormat(type, key);
}
return(key);
}
/// <summary>
/// Export RSA private key
/// </summary>
/// <param name="rsa"></param>
/// <param name="type"></param>
/// <param name="usePemFormat">Only valid if the private key type is PKCS#1 and PKCS#8.</param>
/// <returns></returns>
public static string ExportPrivateKey(this RSA rsa, RSAKeyType type, bool usePemFormat = false)
{
var key = type switch
{
RSAKeyType.Pkcs1 => Convert.ToBase64String(rsa.ExportRSAPrivateKey()),
RSAKeyType.Pkcs8 => Convert.ToBase64String(rsa.ExportPkcs8PrivateKey()),
RSAKeyType.Xml => rsa.ExportXmlPrivateKey(),
_ => string.Empty
};
if (usePemFormat && type != RSAKeyType.Xml)
{
key = PemFormatUtil.GetPrivateKeyFormat(type, key);
}
return(key);
}