enoise/test/enoise_crypto_tests.erl
2018-03-01 20:37:57 +01:00

31 lines
941 B
Erlang

%%%-------------------------------------------------------------------
%%% @copyright (C) 2018, Aeternity Anstalt
%%%-------------------------------------------------------------------
-module(enoise_crypto_tests).
-include_lib("eunit/include/eunit.hrl").
chachapoly_test() ->
#{ key := Key, nonce := Nonce, ad := AD, mac := MAC,
pt := PlainText, ct := CipherText } = test_utils:chacha_data(),
PTLen = byte_size(PlainText),
CTLen = byte_size(CipherText),
MACLen = byte_size(MAC),
%% Sanity check
?assert(PTLen == CTLen),
<<CipherText0:CTLen/binary, MAC0:MACLen/binary>> =
enoise_crypto:encrypt('ChaChaPoly', Key, Nonce, AD, PlainText),
?assertMatch(CipherText, CipherText0),
?assertMatch(MAC, MAC0),
<<PlainText0:PTLen/binary>> =
enoise_crypto:decrypt('ChaChaPoly', Key, Nonce, AD, <<CipherText/binary, MAC/binary>>),
?assertMatch(PlainText, PlainText0),
ok.