legacy-libs/grpc/deps/grpc/third_party/boringssl/crypto/fipsmodule/rand/ctrdrbg_test.cc

   1 /* Copyright (c) 2017, Google Inc.
   2  *
   3  * Permission to use, copy, modify, and/or distribute this software for any
   4  * purpose with or without fee is hereby granted, provided that the above
   5  * copyright notice and this permission notice appear in all copies.
   6  *
   7  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   8  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   9  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  14
  15 #include <gtest/gtest.h>
  16
  17 #include <openssl/rand.h>
  18 #include <openssl/sha.h>
  19
  20 #include "internal.h"
  21 #include "../../test/file_test.h"
  22 #include "../../test/test_util.h"
  23
  24
  25 TEST(CTRDRBGTest, Basic) {
  26   const uint8_t kSeed[CTR_DRBG_ENTROPY_LEN] = {
  27       0xe4, 0xbc, 0x23, 0xc5, 0x08, 0x9a, 0x19, 0xd8, 0x6f, 0x41, 0x19, 0xcb,
  28       0x3f, 0xa0, 0x8c, 0x0a, 0x49, 0x91, 0xe0, 0xa1, 0xde, 0xf1, 0x7e, 0x10,
  29       0x1e, 0x4c, 0x14, 0xd9, 0xc3, 0x23, 0x46, 0x0a, 0x7c, 0x2f, 0xb5, 0x8e,
  30       0x0b, 0x08, 0x6c, 0x6c, 0x57, 0xb5, 0x5f, 0x56, 0xca, 0xe2, 0x5b, 0xad,
  31   };
  32
  33   CTR_DRBG_STATE drbg;
  34   ASSERT_TRUE(CTR_DRBG_init(&drbg, kSeed, nullptr, 0));
  35
  36   const uint8_t kReseed[CTR_DRBG_ENTROPY_LEN] = {
  37       0xfd, 0x85, 0xa8, 0x36, 0xbb, 0xa8, 0x50, 0x19, 0x88, 0x1e, 0x8c, 0x6b,
  38       0xad, 0x23, 0xc9, 0x06, 0x1a, 0xdc, 0x75, 0x47, 0x76, 0x59, 0xac, 0xae,
  39       0xa8, 0xe4, 0xa0, 0x1d, 0xfe, 0x07, 0xa1, 0x83, 0x2d, 0xad, 0x1c, 0x13,
  40       0x6f, 0x59, 0xd7, 0x0f, 0x86, 0x53, 0xa5, 0xdc, 0x11, 0x86, 0x63, 0xd6,
  41   };
  42
  43   ASSERT_TRUE(CTR_DRBG_reseed(&drbg, kReseed, nullptr, 0));
  44
  45   uint8_t out[64];
  46   ASSERT_TRUE(CTR_DRBG_generate(&drbg, out, sizeof(out), nullptr, 0));
  47   ASSERT_TRUE(CTR_DRBG_generate(&drbg, out, sizeof(out), nullptr, 0));
  48
  49   const uint8_t kExpected[64] = {
  50       0xb2, 0xcb, 0x89, 0x05, 0xc0, 0x5e, 0x59, 0x50, 0xca, 0x31, 0x89,
  51       0x50, 0x96, 0xbe, 0x29, 0xea, 0x3d, 0x5a, 0x3b, 0x82, 0xb2, 0x69,
  52       0x49, 0x55, 0x54, 0xeb, 0x80, 0xfe, 0x07, 0xde, 0x43, 0xe1, 0x93,
  53       0xb9, 0xe7, 0xc3, 0xec, 0xe7, 0x3b, 0x80, 0xe0, 0x62, 0xb1, 0xc1,
  54       0xf6, 0x82, 0x02, 0xfb, 0xb1, 0xc5, 0x2a, 0x04, 0x0e, 0xa2, 0x47,
  55       0x88, 0x64, 0x29, 0x52, 0x82, 0x23, 0x4a, 0xaa, 0xda,
  56   };
  57
  58   EXPECT_EQ(Bytes(kExpected), Bytes(out));
  59
  60   CTR_DRBG_clear(&drbg);
  61 }
  62
  63 TEST(CTRDRBGTest, Large) {
  64   const uint8_t kSeed[CTR_DRBG_ENTROPY_LEN] = {0};
  65
  66   CTR_DRBG_STATE drbg;
  67   ASSERT_TRUE(CTR_DRBG_init(&drbg, kSeed, nullptr, 0));
  68
  69   std::unique_ptr<uint8_t[]> buf(new uint8_t[CTR_DRBG_MAX_GENERATE_LENGTH]);
  70   ASSERT_TRUE(CTR_DRBG_generate(&drbg, buf.get(), CTR_DRBG_MAX_GENERATE_LENGTH,
  71                                 nullptr, 0));
  72
  73   uint8_t digest[SHA256_DIGEST_LENGTH];
  74   SHA256(buf.get(), CTR_DRBG_MAX_GENERATE_LENGTH, digest);
  75
  76   const uint8_t kExpected[SHA256_DIGEST_LENGTH] = {
  77       0x69, 0x78, 0x15, 0x96, 0xca, 0xc0, 0x3f, 0x6a, 0x6d, 0xed, 0x22,
  78       0x1e, 0x26, 0xd0, 0x75, 0x49, 0xa0, 0x4b, 0x91, 0x58, 0x3c, 0xf4,
  79       0xe3, 0x6d, 0xff, 0x41, 0xbf, 0xb9, 0xf8, 0xa8, 0x1c, 0x2b,
  80   };
  81   EXPECT_EQ(Bytes(kExpected), Bytes(digest));
  82
  83   CTR_DRBG_clear(&drbg);
  84 }
  85
  86 TEST(CTRDRBGTest, TestVectors) {
  87   FileTestGTest("crypto/fipsmodule/rand/ctrdrbg_vectors.txt", [](FileTest *t) {
  88     std::vector<uint8_t> seed, personalisation, reseed, ai_reseed, ai1, ai2,
  89         expected;
  90     ASSERT_TRUE(t->GetBytes(&seed, "EntropyInput"));
  91     ASSERT_TRUE(t->GetBytes(&personalisation, "PersonalizationString"));
  92     ASSERT_TRUE(t->GetBytes(&reseed, "EntropyInputReseed"));
  93     ASSERT_TRUE(t->GetBytes(&ai_reseed, "AdditionalInputReseed"));
  94     ASSERT_TRUE(t->GetBytes(&ai1, "AdditionalInput1"));
  95     ASSERT_TRUE(t->GetBytes(&ai2, "AdditionalInput2"));
  96     ASSERT_TRUE(t->GetBytes(&expected, "ReturnedBits"));
  97
  98     ASSERT_EQ(static_cast<size_t>(CTR_DRBG_ENTROPY_LEN), seed.size());
  99     ASSERT_EQ(static_cast<size_t>(CTR_DRBG_ENTROPY_LEN), reseed.size());
 100
 101     CTR_DRBG_STATE drbg;
 102     CTR_DRBG_init(&drbg, seed.data(),
 103                   personalisation.empty() ? nullptr : personalisation.data(),
 104                   personalisation.size());
 105     CTR_DRBG_reseed(&drbg, reseed.data(),
 106                     ai_reseed.empty() ? nullptr : ai_reseed.data(),
 107                     ai_reseed.size());
 108
 109     std::vector<uint8_t> out;
 110     out.resize(expected.size());
 111
 112     CTR_DRBG_generate(&drbg, out.data(), out.size(),
 113                       ai1.empty() ? nullptr : ai1.data(), ai1.size());
 114     CTR_DRBG_generate(&drbg, out.data(), out.size(),
 115                       ai2.empty() ? nullptr : ai2.data(), ai2.size());
 116
 117     EXPECT_EQ(Bytes(expected), Bytes(out));
 118   });
 119 }