问Asp.net Identity使用什么算法来加密密码？

EN

public static string HashPassword(string password)
{
    byte[] salt;
    byte[] bytes;
    if (password == null)
    {
        throw new ArgumentNullException("password");
    }
    using (Rfc2898DeriveBytes rfc2898DeriveByte = new Rfc2898DeriveBytes(password, 16, 1000))
    {
        salt = rfc2898DeriveByte.Salt;
        bytes = rfc2898DeriveByte.GetBytes(32);
    }
    byte[] numArray = new byte[49];
    Buffer.BlockCopy(salt, 0, numArray, 1, 16);
    Buffer.BlockCopy(bytes, 0, numArray, 17, 32);
    return Convert.ToBase64String(numArray);
}