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phauxth

2.0.0-alpha.3
2.5.1 retired 2.5.0 2.4.0 2.3.2 2.3.1 2.3.0 2.2.0 2.1.1 2.1.0 2.0.1 2.0.0 2.0.0-rc.2 2.0.0-rc.1 2.0.0-rc.0 2.0.0-beta.1 2.0.0-beta.0 2.0.0-alpha.5 2.0.0-alpha.4 retired 2.0.0-alpha.3 retired 2.0.0-alpha.2 retired 2.0.0-alpha.1 retired 2.0.0-alpha.0 retired 1.2.9 1.2.8 1.2.7 1.2.6 1.2.5 1.2.4 1.2.3 1.2.1 1.2.0 1.1.3 1.1.2 1.1.1 1.1.0 1.0.3 1.0.2 1.0.1 1.0.0 0.17.1 0.17.0 0.16.0 0.15.1 0.15.0 0.14.0 0.13.0-rc.1 0.13.0-rc.0 0.12.1-rc.1 0.12.1-rc.0 0.12.0-rc 0.11.0 0.10.3 0.10.2 0.10.0 0.9.0 0.8.2 0.8.1 0.8.0

Authentication library for Phoenix, and other Plug-based, web applications

Retired package: Deprecated
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phauxth lib phauxth utils.ex
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lib/phauxth/utils.ex 

defmodule Phauxth.Utils do

  @moduledoc false



  @variant10 2

  @uuid_v4 4



  def uuid4 do

    <<u0::48, _::4, u1::12, _::2, u2::62>> = :crypto.strong_rand_bytes(16)



    <<u0::48, @uuid_v4::4, u1::12, @variant10::2, u2::62>>

    |> Base.encode16(case: :lower)

    |> format()

  end



  defp format(<<u0::binary-8, u1::binary-4, u2::binary-4, u3::binary-4, u4::binary-12>>) do

    u0 <> "-" <> u1 <> "-" <> u2 <> "-" <> u3 <> "-" <> u4

  end

end