| /* 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])}; |
| |
| printf("# Generated by"); |
| for (int i = 0; i < argc; i++) { |
| printf(" %s", argv[i]); |
| } |
| printf("\r\n\r\n"); |
| |
| return FileTestMainSilent(TestSHAMonte, &ctx, argv[2]); |
| } |