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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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