pbkdf2_elixir

1.0.0

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Pbkdf2 password hashing algorithm for Elixir.

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pbkdf2_elixir lib pbkdf2 tools.ex

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lib/pbkdf2/tools.ex

defmodule Pbkdf2.Tools do
  @moduledoc false

  use Bitwise

  def secure_check(hash, stored) do
    if byte_size(hash) == byte_size(stored) do
      secure_check(hash, stored, 0) == 0
    else
      false
    end
  end

  defp secure_check(<<h, rest_h::binary>>, <<s, rest_s::binary>>, acc) do
    secure_check(rest_h, rest_s, acc ||| h ^^^ s)
  end

  defp secure_check("", "", acc) do
    acc
  end
end

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