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/*
* (C) 2014,2015,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_AEAD_MODES)
#include <botan/aead.h>
#endif
namespace Botan_Tests {
namespace {
#if defined(BOTAN_HAS_AEAD_MODES)
class AEAD_Tests : public Text_Based_Test
{
public:
AEAD_Tests() :
Text_Based_Test("aead", {"Key", "Nonce", "In", "Out"}, {"AD"})
{}
Test::Result run_one_test(const std::string& algo, const VarMap& vars) override
{
const std::vector<uint8_t> key = get_req_bin(vars, "Key");
const std::vector<uint8_t> nonce = get_opt_bin(vars, "Nonce");
const std::vector<uint8_t> input = get_req_bin(vars, "In");
const std::vector<uint8_t> expected = get_req_bin(vars, "Out");
const std::vector<uint8_t> ad = get_opt_bin(vars, "AD");
Test::Result result(algo);
std::unique_ptr<Botan::AEAD_Mode> enc(Botan::get_aead(algo, Botan::ENCRYPTION));
std::unique_ptr<Botan::AEAD_Mode> dec(Botan::get_aead(algo, Botan::DECRYPTION));
if(!enc || !dec)
{
result.note_missing(algo);
return result;
}
enc->set_key(key);
enc->set_associated_data_vec(ad);
enc->start(nonce);
Botan::secure_vector<uint8_t> buf(input.begin(), input.end());
// TODO: should first update if possible
enc->finish(buf);
result.test_eq("encrypt", buf, expected);
buf.assign(expected.begin(), expected.end());
try
{
dec->set_key(key);
dec->set_associated_data_vec(ad);
dec->start(nonce);
dec->finish(buf);
}
catch(Botan::Exception& e)
{
result.test_failure("Failure processing AEAD ciphertext");
}
if(enc->authenticated())
{
const std::vector<byte> mutated_input = mutate_vec(expected, true);
buf.assign(mutated_input.begin(), mutated_input.end());
dec->start(nonce);
try
{
dec->finish(buf);
result.test_failure("accepted modified message", mutated_input);
}
catch(Botan::Integrity_Failure&)
{
result.test_note("correctly rejected modified message");
}
catch(std::exception& e)
{
result.test_failure("unexpected error while rejecting modified message", e.what());
}
}
if(nonce.size() > 0)
{
buf.assign(expected.begin(), expected.end());
std::vector<byte> bad_nonce = mutate_vec(nonce);
dec->start(bad_nonce);
try
{
dec->finish(buf);
result.test_failure("accepted message with modified nonce", bad_nonce);
}
catch(Botan::Integrity_Failure&)
{
result.test_note("correctly rejected modified nonce");
}
catch(std::exception& e)
{
result.test_failure("unexpected error while rejecting modified nonce", e.what());
}
}
const std::vector<byte> bad_ad = mutate_vec(ad, true);
dec->set_associated_data_vec(bad_ad);
dec->start(nonce);
try
{
buf.assign(expected.begin(), expected.end());
dec->finish(buf);
result.test_failure("accepted message with modified ad", bad_ad);
}
catch(Botan::Integrity_Failure&)
{
result.test_note("correctly rejected modified ad");
}
catch(std::exception& e)
{
result.test_failure("unexpected error while rejecting modified nonce", e.what());
}
return result;
}
};
BOTAN_REGISTER_TEST("aead", AEAD_Tests);
#endif
}
}
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