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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_aes_gcm_test processes a NIST CAVP AES GCM test vector request file and
- // emits the corresponding response.
-
- #include <stdlib.h>
-
- #include <openssl/aead.h>
- #include <openssl/cipher.h>
- #include <openssl/crypto.h>
- #include <openssl/err.h>
-
- #include "../crypto/test/file_test.h"
- #include "cavp_test_util.h"
-
-
- namespace {
-
- struct TestCtx {
- const EVP_AEAD *aead;
- };
-
- }
-
- static const EVP_AEAD *GetAEAD(const std::string &name, const bool enc) {
- if (name == "aes-128-gcm") {
- return EVP_aead_aes_128_gcm();
- } else if (name == "aes-256-gcm") {
- return EVP_aead_aes_256_gcm();
- }
- return nullptr;
- }
-
- static bool TestAEADEncrypt(FileTest *t, void *arg) {
- TestCtx *ctx = reinterpret_cast<TestCtx *>(arg);
-
- std::string key_len_str, iv_len_str, pt_len_str, aad_len_str, tag_len_str;
- if (!t->GetInstruction(&key_len_str, "Keylen") ||
- !t->GetInstruction(&iv_len_str, "IVlen") ||
- !t->GetInstruction(&pt_len_str, "PTlen") ||
- !t->GetInstruction(&aad_len_str, "AADlen") ||
- !t->GetInstruction(&tag_len_str, "Taglen")) {
- return false;
- }
-
- std::string count;
- std::vector<uint8_t> key, iv, pt, aad, tag, ct;
- if (!t->GetAttribute(&count, "Count") ||
- !t->GetBytes(&key, "Key") ||
- !t->GetBytes(&iv, "IV") ||
- !t->GetBytes(&pt, "PT") ||
- !t->GetBytes(&aad, "AAD") ||
- key.size() * 8 != strtoul(key_len_str.c_str(), nullptr, 0) ||
- iv.size() * 8 != strtoul(iv_len_str.c_str(), nullptr, 0) ||
- pt.size() * 8 != strtoul(pt_len_str.c_str(), nullptr, 0) ||
- aad.size() * 8 != strtoul(aad_len_str.c_str(), nullptr, 0) ||
- iv.size() != 12) {
- return false;
- }
-
- const size_t tag_len = strtoul(tag_len_str.c_str(), nullptr, 0) / 8;
- if (!AEADEncrypt(ctx->aead, &ct, &tag, tag_len, key, pt, aad, iv)) {
- return false;
- }
- printf("%s", t->CurrentTestToString().c_str());
- printf("CT = %s\r\n", EncodeHex(ct.data(), ct.size()).c_str());
- printf("Tag = %s\r\n\r\n", EncodeHex(tag.data(), tag.size()).c_str());
-
- return true;
- }
-
- static bool TestAEADDecrypt(FileTest *t, void *arg) {
- TestCtx *ctx = reinterpret_cast<TestCtx *>(arg);
-
- std::string key_len, iv_len, pt_len_str, aad_len_str, tag_len;
- if (!t->GetInstruction(&key_len, "Keylen") ||
- !t->GetInstruction(&iv_len, "IVlen") ||
- !t->GetInstruction(&pt_len_str, "PTlen") ||
- !t->GetInstruction(&aad_len_str, "AADlen") ||
- !t->GetInstruction(&tag_len, "Taglen")) {
- t->PrintLine("Invalid instruction block.");
- return false;
- }
- size_t aad_len = strtoul(aad_len_str.c_str(), nullptr, 0) / 8;
- size_t pt_len = strtoul(pt_len_str.c_str(), nullptr, 0) / 8;
-
- std::string count;
- std::vector<uint8_t> key, iv, ct, aad, tag, pt;
- if (!t->GetAttribute(&count, "Count") ||
- !t->GetBytes(&key, "Key") ||
- !t->GetBytes(&aad, "AAD") ||
- !t->GetBytes(&tag, "Tag") ||
- !t->GetBytes(&iv, "IV") ||
- !t->GetBytes(&ct, "CT") ||
- key.size() * 8 != strtoul(key_len.c_str(), nullptr, 0) ||
- iv.size() * 8 != strtoul(iv_len.c_str(), nullptr, 0) ||
- ct.size() != pt_len ||
- aad.size() != aad_len ||
- tag.size() * 8 != strtoul(tag_len.c_str(), nullptr, 0)) {
- t->PrintLine("Invalid test case");
- return false;
- }
-
- printf("%s", t->CurrentTestToString().c_str());
- bool aead_result =
- AEADDecrypt(ctx->aead, &pt, pt_len, key, aad, ct, tag, iv);
- if (aead_result) {
- printf("PT = %s\r\n\r\n", EncodeHex(pt.data(), pt.size()).c_str());
- } else {
- printf("FAIL\r\n\r\n");
- }
-
- return true;
- }
-
- static int usage(char *arg) {
- fprintf(stderr, "usage: %s (enc|dec) <cipher> <test file>\n", arg);
- return 1;
- }
-
- int cavp_aes_gcm_test_main(int argc, char **argv) {
- if (argc != 4) {
- return usage(argv[0]);
- }
-
- const std::string mode(argv[1]);
- bool (*test_fn)(FileTest * t, void *arg);
- if (mode == "enc") {
- test_fn = &TestAEADEncrypt;
- } else if (mode == "dec") {
- test_fn = &TestAEADDecrypt;
- } else {
- return usage(argv[0]);
- }
-
- const EVP_AEAD *aead = GetAEAD(argv[2], mode == "enc");
- if (aead == nullptr) {
- fprintf(stderr, "invalid aead: %s\n", argv[2]);
- return 1;
- }
-
- TestCtx ctx = {aead};
-
- FileTest::Options opts;
- opts.path = argv[3];
- opts.callback = test_fn;
- opts.arg = &ctx;
- opts.silent = true;
- opts.comment_callback = EchoComment;
- return FileTestMain(opts);
- }
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