1  // Copyright (c) 2020-present The Bitcoin Core developers
  2  // Distributed under the MIT software license, see the accompanying
  3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  4  
  5  #include <crypto/hmac_sha256.h>
  6  #include <crypto/hmac_sha512.h>
  7  #include <crypto/ripemd160.h>
  8  #include <crypto/sha1.h>
  9  #include <crypto/sha256.h>
 10  #include <crypto/sha3.h>
 11  #include <crypto/sha512.h>
 12  #include <hash.h>
 13  #include <test/fuzz/FuzzedDataProvider.h>
 14  #include <test/fuzz/fuzz.h>
 15  #include <test/fuzz/util.h>
 16  
 17  #include <cstdint>
 18  #include <vector>
 19  
 20  FUZZ_TARGET(crypto)
 21  {
 22      FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
 23      std::vector<uint8_t> data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
 24      if (data.empty()) {
 25          auto new_size = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096);
 26          auto x = fuzzed_data_provider.ConsumeIntegral<uint8_t>();
 27          data.resize(new_size, x);
 28      }
 29  
 30      CHash160 hash160;
 31      CHash256 hash256;
 32      CHMAC_SHA256 hmac_sha256{data.data(), data.size()};
 33      CHMAC_SHA512 hmac_sha512{data.data(), data.size()};
 34      CRIPEMD160 ripemd160;
 35      CSHA1 sha1;
 36      CSHA256 sha256;
 37      CSHA512 sha512;
 38      SHA3_256 sha3;
 39      CSipHasher sip_hasher{fuzzed_data_provider.ConsumeIntegral<uint64_t>(), fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
 40  
 41      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 30)
 42      {
 43          CallOneOf(
 44              fuzzed_data_provider,
 45              [&] {
 46                  if (fuzzed_data_provider.ConsumeBool()) {
 47                      data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
 48                      if (data.empty()) {
 49                          auto new_size = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096);
 50                          auto x = fuzzed_data_provider.ConsumeIntegral<uint8_t>();
 51                          data.resize(new_size, x);
 52                      }
 53                  }
 54  
 55                  (void)hash160.Write(data);
 56                  (void)hash256.Write(data);
 57                  (void)hmac_sha256.Write(data.data(), data.size());
 58                  (void)hmac_sha512.Write(data.data(), data.size());
 59                  (void)ripemd160.Write(data.data(), data.size());
 60                  (void)sha1.Write(data.data(), data.size());
 61                  (void)sha256.Write(data.data(), data.size());
 62                  (void)sha3.Write(data);
 63                  (void)sha512.Write(data.data(), data.size());
 64                  (void)sip_hasher.Write(data);
 65  
 66                  (void)Hash(data);
 67                  (void)Hash160(data);
 68                  (void)sha512.Size();
 69              },
 70              [&] {
 71                  (void)hash160.Reset();
 72                  (void)hash256.Reset();
 73                  (void)ripemd160.Reset();
 74                  (void)sha1.Reset();
 75                  (void)sha256.Reset();
 76                  (void)sha3.Reset();
 77                  (void)sha512.Reset();
 78              },
 79              [&] {
 80                  CallOneOf(
 81                      fuzzed_data_provider,
 82                      [&] {
 83                          data.resize(CHash160::OUTPUT_SIZE);
 84                          hash160.Finalize(data);
 85                      },
 86                      [&] {
 87                          data.resize(CHash256::OUTPUT_SIZE);
 88                          hash256.Finalize(data);
 89                      },
 90                      [&] {
 91                          data.resize(CHMAC_SHA256::OUTPUT_SIZE);
 92                          hmac_sha256.Finalize(data.data());
 93                      },
 94                      [&] {
 95                          data.resize(CHMAC_SHA512::OUTPUT_SIZE);
 96                          hmac_sha512.Finalize(data.data());
 97                      },
 98                      [&] {
 99                          data.resize(CRIPEMD160::OUTPUT_SIZE);
100                          ripemd160.Finalize(data.data());
101                      },
102                      [&] {
103                          data.resize(CSHA1::OUTPUT_SIZE);
104                          sha1.Finalize(data.data());
105                      },
106                      [&] {
107                          data.resize(CSHA256::OUTPUT_SIZE);
108                          sha256.Finalize(data.data());
109                      },
110                      [&] {
111                          data.resize(CSHA512::OUTPUT_SIZE);
112                          sha512.Finalize(data.data());
113                      },
114                      [&] {
115                          data.resize(1);
116                          data[0] = sip_hasher.Finalize() % 256;
117                      },
118                      [&] {
119                          data.resize(SHA3_256::OUTPUT_SIZE);
120                          sha3.Finalize(data);
121                      });
122              });
123      }
124      if (fuzzed_data_provider.ConsumeBool()) {
125          uint64_t state[25];
126          for (size_t i = 0; i < 25; ++i) {
127              state[i] = fuzzed_data_provider.ConsumeIntegral<uint64_t>();
128          }
129          KeccakF(state);
130      }
131  }