Elixir bindings for libsrtp
The package can be installed by adding :ex_libsrtp to your list of dependencies in mix.exs:
def deps do [ {:ex_libsrtp, "~> 0.7.3"} ] end
This package is based on libsrtp. The precompiled builds will be pulled and linked automatically. However, should there be any problems, consider installing it manually.
brew install srtp
apt install libsrtp2-dev
pacman -S libsrtp
This library allows to convert RTP to SRTP and the other way round. The following snippet shows how to encrypt and decrypt a packet:
iex> in_srtp = ExLibSRTP.new() iex> ExLibSRTP.add_stream(in_srtp, %ExLibSRTP.Policy{ssrc: :any_inbound, key: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}) :ok iex> packet = <<128, 14, 15, 143, 98, 145, 127, 247, 233, 164, 145, 140, 1, 2, 3, 4>> iex> {:ok, protected_packet} = ExLibSRTP.protect(in_srtp, packet) {:ok, <<128, 14, 15, 143, 98, 145, 127, 247, 233, 164, 145, 140, 112, 112, 222, 241, 148, 205, 10, 185, 78, 20, 27, 103, 2, 207>>} iex> out_srtp = ExLibSRTP.new() iex> ExLibSRTP.add_stream(out_srtp, %ExLibSRTP.Policy{ssrc: :any_outbound, key: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}) :ok iex> {:ok, unprotected_packet} = ExLibSRTP.unprotect(out_srtp, protected_packet) {:ok, <<128, 14, 15, 143, 98, 145, 127, 247, 233, 164, 145, 140, 1, 2, 3, 4>>} iex> unprotected_packet == packet true
Copyright 2020, Software Mansion
Licensed under the Apache License, Version 2.0