730d69e159
This isn't actually used yet, but implements CTR-DRBG from SP 800-90Ar1. Specifically, it always uses AES-256 and no derivation function. Change-Id: Ie82b829590226addd7c165eac410a5d584858bfd Reviewed-on: https://boringssl-review.googlesource.com/14891 Reviewed-by: Adam Langley <agl@google.com>
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/* Copyright (c) 2017, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <openssl/rand.h>
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#include <openssl/crypto.h>
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#include "internal.h"
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#include "../test/test_util.h"
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#include "../test/file_test.h"
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static bool TestCTRDRBG(FileTest *t, void *arg) {
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std::vector<uint8_t> seed, personalisation, reseed, ai_reseed, ai1, ai2,
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expected;
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if (!t->GetBytes(&seed, "EntropyInput") ||
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!t->GetBytes(&personalisation, "PersonalizationString") ||
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!t->GetBytes(&reseed, "EntropyInputReseed") ||
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!t->GetBytes(&ai_reseed, "AdditionalInputReseed") ||
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!t->GetBytes(&ai1, "AdditionalInput1") ||
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!t->GetBytes(&ai2, "AdditionalInput2") ||
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!t->GetBytes(&expected, "ReturnedBits")) {
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t->PrintLine("missing value");
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return false;
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}
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if (seed.size() != CTR_DRBG_ENTROPY_LEN ||
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reseed.size() != CTR_DRBG_ENTROPY_LEN) {
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t->PrintLine("bad seed length");
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return false;
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}
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CTR_DRBG_STATE drbg;
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CTR_DRBG_init(&drbg, seed.data(),
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personalisation.size() > 0 ? personalisation.data() : nullptr,
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personalisation.size());
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CTR_DRBG_reseed(&drbg, reseed.data(),
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ai_reseed.size() > 0 ? ai_reseed.data() : nullptr,
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ai_reseed.size());
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std::vector<uint8_t> out;
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out.resize(expected.size());
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CTR_DRBG_generate(&drbg, out.data(), out.size(),
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ai1.size() > 0 ? ai1.data() : nullptr, ai1.size());
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CTR_DRBG_generate(&drbg, out.data(), out.size(),
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ai2.size() > 0 ? ai2.data() : nullptr, ai2.size());
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return t->ExpectBytesEqual(expected.data(), expected.size(), out.data(),
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out.size());
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}
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int main(int argc, char **argv) {
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CRYPTO_library_init();
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if (argc != 2) {
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fprintf(stderr, "%s <test file>\n", argv[0]);
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return 1;
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}
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return FileTestMain(TestCTRDRBG, nullptr, argv[1]);
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}
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