/// <summary>
/// Encodes the specified private key.
/// </summary>
/// <param name="privateKey">The private key.</param>
/// <param name="publicKey">The pub key.</param>
/// <param name="msg">The MSG.</param>
/// <param name="iv">The iv.</param>
/// <param name="salt">The salt.</param>
/// <returns>System.String.</returns>
internal static string _Encode(byte[] privateKey, byte[] publicKey, string msg, byte[] iv, byte[] salt)
{
var shared = new byte[32];
Ed25519Operations.key_derive(
shared,
salt,
privateKey,
publicKey);
return(salt.ToHexLower() + AesEncryptor(shared, iv, msg));
}
/// <summary>
/// Decodes the specified private key.
/// </summary>
/// <param name="privateKey">The private key.</param>
/// <param name="publicKey">The pub key.</param>
/// <param name="data">The data.</param>
/// <returns>System.String.</returns>
internal static string _Decode(byte[] privateKey, byte[] publicKey, byte[] data)
{
var salt = data.Take(0, 32).ToArray();
var iv = data.Take(32, 16);
var payload = data.Take(48, data.Length - 48);
var shared = new byte[32];
Ed25519Operations.key_derive(
shared,
salt,
privateKey,
publicKey);
return(AesDecryptor(shared, iv, payload));
}