mirror of
https://akkoma.dev/AkkomaGang/akkoma.git
synced 2024-12-12 13:56:53 +00:00
32 lines
990 B
Elixir
32 lines
990 B
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.MFA.BackupCodes do
|
|
@moduledoc """
|
|
This module contains functions for generating backup codes.
|
|
"""
|
|
alias Pleroma.Config
|
|
|
|
@config_ns [:instance, :multi_factor_authentication, :backup_codes]
|
|
|
|
@doc """
|
|
Generates backup codes.
|
|
"""
|
|
@spec generate(Keyword.t()) :: list(String.t())
|
|
def generate(opts \\ []) do
|
|
number_of_codes = Keyword.get(opts, :number_of_codes, default_backup_codes_number())
|
|
code_length = Keyword.get(opts, :length, default_backup_codes_code_length())
|
|
|
|
Enum.map(1..number_of_codes, fn _ ->
|
|
:crypto.strong_rand_bytes(div(code_length, 2))
|
|
|> Base.encode16(case: :lower)
|
|
end)
|
|
end
|
|
|
|
defp default_backup_codes_number, do: Config.get(@config_ns ++ [:number], 5)
|
|
|
|
defp default_backup_codes_code_length,
|
|
do: Config.get(@config_ns ++ [:length], 16)
|
|
end
|