- /* 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_keywrap_test processes a NIST CAVP AES test vector request file and
- // emits the corresponding response.
-
- #include <stdlib.h>
-
- #include <openssl/aes.h>
- #include <openssl/crypto.h>
-
- #include "../crypto/test/file_test.h"
- #include "cavp_test_util.h"
-
-
- namespace {
-
- struct TestCtx {
- bool encrypt;
- };
-
- }
-
- static bool AESKeyWrap(std::vector<uint8_t> *out, bool encrypt,
- const std::vector<uint8_t> &key,
- const std::vector<uint8_t> &in) {
- size_t key_bits = key.size() * 8;
- if (key_bits != 128 && key_bits != 256) {
- return false;
- }
- AES_KEY aes_key;
-
- if (encrypt) {
- out->resize(in.size() + 8);
- if (AES_set_encrypt_key(key.data(), key_bits, &aes_key) ||
- AES_wrap_key(&aes_key, nullptr, out->data(), in.data(), in.size()) ==
- -1) {
- return false;
- }
- } else {
- out->resize(in.size() - 8);
- if (AES_set_decrypt_key(key.data(), key_bits, &aes_key) ||
- AES_unwrap_key(&aes_key, nullptr, out->data(), in.data(), in.size()) ==
- -1) {
- return false;
- }
- }
-
- return true;
- }
-
- static bool TestCipher(FileTest *t, void *arg) {
- TestCtx *ctx = reinterpret_cast<TestCtx *>(arg);
-
- std::string count, unused, in_label = ctx->encrypt ? "P" : "C",
- result_label = ctx->encrypt ? "C" : "P";
- std::vector<uint8_t> key, in, result;
- // clang-format off
- if (!t->GetInstruction(&unused, "PLAINTEXT LENGTH") ||
- !t->GetAttribute(&count, "COUNT") ||
- !t->GetBytes(&key, "K") ||
- !t->GetBytes(&in, in_label)) {
- return false;
- }
- // clang-format on
-
- printf("%s", t->CurrentTestToString().c_str());
- if (!AESKeyWrap(&result, ctx->encrypt, key, in)) {
- if (ctx->encrypt) {
- return false;
- } else {
- printf("FAIL\r\n\r\n");
- }
- } else {
- printf("%s = %s\r\n\r\n", result_label.c_str(),
- EncodeHex(result.data(), result.size()).c_str());
- }
-
- return true;
- }
-
- static int usage(char *arg) {
- fprintf(
- stderr,
- "usage: %s (enc|dec) (128|256) <test file>\n",
- arg);
- return 1;
- }
-
- int cavp_keywrap_test_main(int argc, char **argv) {
- if (argc != 4) {
- return usage(argv[0]);
- }
-
- const std::string op(argv[1]);
- bool encrypt;
- if (op == "enc") {
- encrypt = true;
- } else if (op == "dec") {
- encrypt = false;
- } else {
- return usage(argv[0]);
- }
-
- TestCtx ctx = {encrypt};
-
- FileTest::Options opts;
- opts.path = argv[3];
- opts.callback = TestCipher;
- opts.arg = &ctx;
- opts.silent = true;
- opts.comment_callback = EchoComment;
- return FileTestMain(opts);
- }
|