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/* Copyright (c) 2017, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
// cavp_sha_monte_test processes a NIST CAVP SHA-Monte test vector request file
// and emits the corresponding response.
#include <stdlib.h>
#include <openssl/crypto.h>
#include <openssl/digest.h>
#include "../crypto/test/file_test.h"
#include "cavp_test_util.h"
namespace {
struct TestCtx {
std::string hash;
};
}
static bool TestSHAMonte(FileTest *t, void *arg) {
TestCtx *ctx = reinterpret_cast<TestCtx *>(arg);
const EVP_MD *md = EVP_get_digestbyname(ctx->hash.c_str());
if (md == nullptr) {
return false;
}
const size_t md_len = EVP_MD_size(md);
std::string out_len;
if (!t->GetInstruction(&out_len, "L") ||
md_len != strtoul(out_len.c_str(), nullptr, 0)) {
return false;
}
std::vector<uint8_t> seed;
if (!t->GetBytes(&seed, "Seed") ||
seed.size() != md_len) {
return false;
}
std::vector<uint8_t> out = seed;
printf("%s\r\n", t->CurrentTestToString().c_str());
for (int count = 0; count < 100; count++) {
std::vector<uint8_t> msg;
msg.insert(msg.end(), out.begin(), out.end());
msg.insert(msg.end(), out.begin(), out.end());
msg.insert(msg.end(), out.begin(), out.end());
for (int i = 0; i < 1000; i++) {
unsigned digest_len;
if (!EVP_Digest(msg.data(), msg.size(), out.data(), &digest_len, md,
nullptr) ||
digest_len != out.size()) {
return false;
}
msg.erase(msg.begin(), msg.begin() + out.size());
msg.insert(msg.end(), out.begin(), out.end());
}
printf("COUNT = %d\r\n", count);
printf("MD = %s\r\n\r\n", EncodeHex(out.data(), out.size()).c_str());
}
return true;
}
static int usage(char *arg) {
fprintf(stderr, "usage: %s <hash> <test file>\n", arg);
return 1;
}
int cavp_sha_monte_test_main(int argc, char **argv) {
if (argc != 3) {
return usage(argv[0]);
}
TestCtx ctx = {std::string(argv[1])};
FileTest::Options opts;
opts.path = argv[2];
opts.callback = TestSHAMonte;
opts.arg = &ctx;
opts.silent = true;
opts.comment_callback = EchoComment;
return FileTestMain(opts);
}
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