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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_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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