- /* 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_ctr_drbg_test processes a NIST CAVP DRBG800-90A test vector request
- // file and emits the corresponding response.
-
- #include <openssl/crypto.h>
-
- #include <stdlib.h>
-
- #include "cavp_test_util.h"
- #include "../crypto/fipsmodule/rand/internal.h"
- #include "../crypto/test/file_test.h"
-
-
- static bool TestCTRDRBG(FileTest *t, void *arg) {
- std::string test_type, prediction_resistance, entropy_input_len, nonce_len,
- personalization_str_len, additional_input_len, returned_bits_len;
- if (!t->GetInstruction(&test_type, "AES-256 no df") ||
- !t->GetInstruction(&prediction_resistance, "PredictionResistance") ||
- !t->GetInstruction(&entropy_input_len, "EntropyInputLen") ||
- !t->GetInstruction(&nonce_len, "NonceLen") ||
- !t->GetInstruction(&personalization_str_len,
- "PersonalizationStringLen") ||
- !t->GetInstruction(&additional_input_len, "AdditionalInputLen") ||
- !t->GetInstruction(&returned_bits_len, "ReturnedBitsLen") ||
- !test_type.empty() ||
- prediction_resistance != "False" ||
- strtoul(entropy_input_len.c_str(), nullptr, 0) !=
- CTR_DRBG_ENTROPY_LEN * 8 ||
- nonce_len != "0") {
- return false;
- }
-
- std::string count;
- std::vector<uint8_t> entropy, nonce, personalization_str, ai1, ai2;
- if (!t->GetAttribute(&count, "COUNT") ||
- !t->GetBytes(&entropy, "EntropyInput") ||
- !t->GetBytes(&nonce, "Nonce") ||
- !t->GetBytes(&personalization_str, "PersonalizationString") ||
- !t->GetBytes(&ai1, "AdditionalInput") ||
- !t->GetBytes(&ai2, "AdditionalInput/2") ||
- entropy.size() * 8 != strtoul(entropy_input_len.c_str(), nullptr, 0) ||
- nonce.size() != 0 ||
- personalization_str.size() * 8 !=
- strtoul(personalization_str_len.c_str(), nullptr, 0) ||
- ai1.size() != ai2.size() ||
- ai1.size() * 8 != strtoul(additional_input_len.c_str(), nullptr, 0)) {
- return false;
- }
-
- CTR_DRBG_STATE drbg;
- CTR_DRBG_init(&drbg, entropy.data(),
- personalization_str.size() > 0 ? personalization_str.data()
- : nullptr,
- personalization_str.size());
-
- uint64_t out_len = strtoul(returned_bits_len.c_str(), nullptr, 0);
- if (out_len == 0 || (out_len & 7) != 0) {
- return false;
- }
- out_len /= 8;
-
- std::vector<uint8_t> out;
- out.resize(out_len);
-
- CTR_DRBG_generate(&drbg, out.data(), out.size(),
- ai1.size() > 0 ? ai1.data() : nullptr, ai1.size());
- CTR_DRBG_generate(&drbg, out.data(), out.size(),
- ai2.size() > 0 ? ai2.data() : nullptr, ai2.size());
-
- printf("%s", t->CurrentTestToString().c_str());
- printf("ReturnedBits = %s\r\n\r\n",
- EncodeHex(out.data(), out.size()).c_str());
-
- return true;
- }
-
- static int usage(char *arg) {
- fprintf(stderr, "usage: %s <test file>\n", arg);
- return 1;
- }
-
- int cavp_ctr_drbg_test_main(int argc, char **argv) {
- if (argc != 2) {
- return usage(argv[0]);
- }
-
- FileTest::Options opts;
- opts.path = argv[1];
- opts.callback = TestCTRDRBG;
- opts.silent = true;
- opts.comment_callback = EchoComment;
- return FileTestMain(opts);
- }
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