/// <summary>
/// Decodes the PKCS8 private key.
/// </summary>
/// <param name="pkcs8blob">The pkcs8blob.</param>
/// <returns></returns>
public static RSAParameters DecodePkcs8PrivateKey(byte[] pkcs8blob)
{
var privKeyInfo = new PKCS8.PrivateKeyInfo(pkcs8blob);
if (privKeyInfo.Algorithm != Oid.rsaEncryption)
{
throw new NotSupportedException("Only RSA keys are currently supported.");
}
return(DecodeAsn1RsaPrivateKey(privKeyInfo.PrivateKey));
}
/// <summary>
/// Encodes as PKCS8 private key.
/// </summary>
/// <param name="keyParameters">The key parameters.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentException">Argument should be an RSA private key.</exception>
public static byte[] EncodeAsPkcs8PrivateKey(RSAParameters keyParameters)
{
if (!IsValidPrivateKey(keyParameters))
{
throw new ArgumentException("Argument should be an RSA private key.");
}
var privKeyInfo = new PKCS8.PrivateKeyInfo()
{
Algorithm = Oid.rsaEncryption,
PrivateKey = EncodeAsAsn1(keyParameters)
};
return(privKeyInfo.GetBytes());
}
