/// <summary>
/// Version 1: Derives an key from the specified password.
/// </summary>
/// <param name="password">The password.</param>
/// <param name="bcryptSalt">bCrypt salt (16 bytes).</param>
/// <param name="pbkdf2Salt">PBKDF2 salt (min 8 bytes)</param>
/// <param name="workload">bCrypt workload (4 - 31).</param>
/// <param name="keySize">The size of the key to derive (bits).</param>
/// <returns>Key.</returns>
static byte[] DeriveKeyV1(string password, byte[] bcryptSalt, byte[] pbkdf2Salt, int workload, int keySize)
{
var bcryptKey = BC.Crypt(password, bcryptSalt, workload);
using (var deriveKey = new Rfc2898DeriveBytes(bcryptKey, pbkdf2Salt, 10000))
{
return(deriveKey.GetBytes(keySize >> 3));
}
}