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/*
* (C) 2014,2015 Jack Lloyd
* (C) 2016 René Korthaus
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_MAC)
#include <botan/mac.h>
#endif
namespace Botan_Tests {
namespace {
#if defined(BOTAN_HAS_MAC)
class Message_Auth_Tests final : public Text_Based_Test
{
public:
Message_Auth_Tests() : Text_Based_Test("mac", "Key,In,Out", "IV") {}
std::vector<std::string> possible_providers(const std::string& algo) override
{
return provider_filter(Botan::MessageAuthenticationCode::providers(algo));
}
Test::Result run_one_test(const std::string& algo, const VarMap& vars) override
{
const std::vector<uint8_t> key = vars.get_req_bin("Key");
const std::vector<uint8_t> input = vars.get_req_bin("In");
const std::vector<uint8_t> expected = vars.get_req_bin("Out");
const std::vector<uint8_t> iv = vars.get_opt_bin("IV");
Test::Result result(algo);
const std::vector<std::string> providers = possible_providers(algo);
if(providers.empty())
{
result.note_missing("MAC " + algo);
return result;
}
for(auto const& provider_ask : providers)
{
std::unique_ptr<Botan::MessageAuthenticationCode> mac(Botan::MessageAuthenticationCode::create(algo, provider_ask));
if(!mac)
{
result.test_failure("MAC " + algo + " supported by " + provider_ask + " but not found");
continue;
}
const std::string provider(mac->provider());
result.test_is_nonempty("provider", provider);
result.test_eq(provider, mac->name(), algo);
try
{
std::vector<uint8_t> buf(128);
mac->update(buf.data(), buf.size());
result.test_failure("Was able to MAC without a key being set");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to MAC with no key set fails");
}
mac->set_key(key);
mac->start(iv);
mac->update(input);
result.test_eq(provider, "correct mac", mac->final(), expected);
mac->set_key(key);
mac->start(iv);
mac->update(input);
result.test_eq(provider, "correct mac (try 2)", mac->final(), expected);
if(!mac->fresh_key_required_per_message())
{
for(size_t i = 0; i != 3; ++i)
{
mac->start(iv);
mac->update(input);
result.test_eq(provider, "correct mac (same key)", mac->final(), expected);
}
}
// Test to make sure clear() resets what we need it to
mac->set_key(key);
mac->start(iv);
mac->update("some discarded input");
mac->clear();
// do the same to test verify_mac()
mac->set_key(key);
mac->start(iv);
mac->update(input);
// Test that clone works and does not affect parent object
std::unique_ptr<Botan::MessageAuthenticationCode> clone(mac->clone());
result.confirm("Clone has different pointer", mac.get() != clone.get());
result.test_eq("Clone has same name", mac->name(), clone->name());
clone->set_key(key);
clone->start(iv);
clone->update(Test::rng().random_vec(32));
result.test_eq(provider + " verify mac", mac->verify_mac(expected.data(), expected.size()), true);
if(input.size() > 2)
{
mac->set_key(key); // Poly1305 requires the re-key
mac->start(iv);
mac->update(input[0]);
mac->update(&input[1], input.size() - 2);
mac->update(input[input.size() - 1]);
result.test_eq(provider, "split mac", mac->final(), expected);
// do the same to test verify_mac()
mac->set_key(key);
mac->start(iv);
mac->update(input[ 0 ]);
mac->update(&input[ 1 ], input.size() - 2);
mac->update(input[ input.size() - 1 ]);
result.test_eq(provider + " split mac", mac->verify_mac(expected.data(), expected.size()), true);
}
mac->clear();
try
{
std::vector<uint8_t> buf(128);
mac->update(buf.data(), buf.size());
result.test_failure("Was able to MAC without a key being set");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to MAC with no key set (after clear) fails");
}
try
{
std::vector<uint8_t> buf(mac->output_length());
mac->final(buf.data());
result.test_failure("Was able to MAC without a key being set");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to MAC with no key set (after clear) fails");
}
}
return result;
}
};
BOTAN_REGISTER_TEST("mac", "mac", Message_Auth_Tests);
#endif
}
}
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