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/*
* (C) 2014,2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#include <botan/hash.h>
#include <botan/hex.h>
#include <iostream>
#include <fstream>
using namespace Botan;
namespace {
size_t hash_test(const std::string& algo,
const std::string& in_hex,
const std::string& out_hex)
{
size_t fails = 0;
const std::vector<std::string> providers = HashFunction::providers(algo);
if(providers.empty())
{
std::cout << "Unknown hash '" << algo << "'" << std::endl;
return 0;
}
for(auto provider: providers)
{
std::unique_ptr<HashFunction> hash(HashFunction::create(algo, provider));
if(!hash)
{
std::cout << "Unable to get " << algo << " from " << provider << std::endl;
++fails;
continue;
}
const std::vector<byte> in = hex_decode(in_hex);
hash->update(in);
auto h = hash->final();
if(h != hex_decode_locked(out_hex))
{
std::cout << algo << " " << provider << " got " << hex_encode(h) << " != " << out_hex << std::endl;
++fails;
}
// Test to make sure clear() resets what we need it to
hash->update("some discarded input");
hash->clear();
hash->update(in);
h = hash->final();
if(h != hex_decode_locked(out_hex))
{
std::cout << algo << " " << provider << " got " << hex_encode(h) << " != " << out_hex
<< " (with discarded input)" << std::endl;
++fails;
}
if(in.size() > 1)
{
hash->update(in[0]);
hash->update(&in[1], in.size() - 1);
h = hash->final();
if(h != hex_decode_locked(out_hex))
{
std::cout << algo << " " << provider << " got " << hex_encode(h) << " != " << out_hex
<< " (with offset input)" << std::endl;
++fails;
}
}
}
return fails;
}
}
size_t test_hash()
{
auto test = [](const std::string& input)
{
std::ifstream vec(input);
return run_tests_bb(vec, "Hash", "Out", true,
[](std::map<std::string, std::string> m) -> size_t
{
return hash_test(m["Hash"], m["In"], m["Out"]);
});
};
return run_tests_in_dir(TEST_DATA_DIR "/hash", test);
}
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