public static byte[] LoadKey(string keyName, string password)
{
var fileLine = FileWriterReader.ReadLine(KEYS_FOLDER + keyName);
var encryptedData = System.Convert.FromBase64String(fileLine);
var passwordBytes = System.Convert.FromBase64String(password);
var decryptedKey = AES256.DecryptWithCBC(encryptedData, passwordBytes, new byte[16]);
return(decryptedKey);
}
public static string SaveKey(string keyName, byte[] key)
{
var randomPassword = new byte[32];
using (var rngCryptoServiceProvider = new RNGCryptoServiceProvider())
{
rngCryptoServiceProvider.GetBytes(randomPassword);
}
var password = System.Convert.ToBase64String(randomPassword);
var encryptedData = AES256.EncryptWithCBC(key, randomPassword, new byte[16]);
var encryptedDataString = System.Convert.ToBase64String(encryptedData);
FileWriterReader.Write(KEYS_FOLDER + keyName, encryptedDataString, System.IO.FileMode.Create);
return(password);
}