Electroneum
crypto.cpp
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29 
30 #include <cstdint>
31 #include <gtest/gtest.h>
32 #include <memory>
33 #include <sstream>
34 #include <string>
35 
37 
38 namespace
39 {
40  static constexpr const std::uint8_t source[] = {
41  0x8b, 0x65, 0x59, 0x70, 0x15, 0x37, 0x99, 0xaf, 0x2a, 0xea, 0xdc, 0x9f, 0xf1, 0xad, 0xd0, 0xea,
42  0x6c, 0x72, 0x51, 0xd5, 0x41, 0x54, 0xcf, 0xa9, 0x2c, 0x17, 0x3a, 0x0d, 0xd3, 0x9c, 0x1f, 0x94,
43  0x6c, 0x72, 0x51, 0xd5, 0x41, 0x54, 0xcf, 0xa9, 0x2c, 0x17, 0x3a, 0x0d, 0xd3, 0x9c, 0x1f, 0x94,
44  0x8b, 0x65, 0x59, 0x70, 0x15, 0x37, 0x99, 0xaf, 0x2a, 0xea, 0xdc, 0x9f, 0xf1, 0xad, 0xd0, 0xea
45  };
46 
47  static constexpr const char expected[] =
48  "8b655970153799af2aeadc9ff1add0ea6c7251d54154cfa92c173a0dd39c1f94"
49  "6c7251d54154cfa92c173a0dd39c1f948b655970153799af2aeadc9ff1add0ea";
50 
51  template<typename T> void *addressof(T &t) { return &t; }
52  template<> void *addressof(crypto::secret_key &k) { return addressof(unwrap(unwrap(k))); }
53 
54  template<typename T>
55  bool is_formatted()
56  {
57  T value{};
58 
59  static_assert(alignof(T) == 1, "T must have 1 byte alignment");
60  static_assert(sizeof(T) <= sizeof(source), "T is too large for source");
61  static_assert(sizeof(T) * 2 <= sizeof(expected), "T is too large for destination");
62  std::memcpy(addressof(value), source, sizeof(T));
63 
64  std::stringstream out;
65  out << "BEGIN" << value << "END";
66  return out.str() == "BEGIN<" + std::string{expected, sizeof(T) * 2} + ">END";
67  }
68 }
69 
70 TEST(Crypto, Ostream)
71 {
72  EXPECT_TRUE(is_formatted<crypto::hash8>());
73  EXPECT_TRUE(is_formatted<crypto::hash>());
74  EXPECT_TRUE(is_formatted<crypto::public_key>());
75  EXPECT_TRUE(is_formatted<crypto::secret_key>());
76  EXPECT_TRUE(is_formatted<crypto::signature>());
77  EXPECT_TRUE(is_formatted<crypto::key_derivation>());
78  EXPECT_TRUE(is_formatted<crypto::key_image>());
79 }
80 
81 TEST(Crypto, null_keys)
82 {
83  char zero[32];
84  memset(zero, 0, 32);
85  ASSERT_EQ(memcmp(crypto::null_skey.data, zero, 32), 0);
86  ASSERT_EQ(memcmp(crypto::null_pkey.data, zero, 32), 0);
87 }
88 
89 TEST(Crypto, verify_32)
90 {
91  // all bytes are treated the same, so we can brute force just one byte
92  unsigned char k0[32] = {0}, k1[32] = {0};
93  for (unsigned int i0 = 0; i0 < 256; ++i0)
94  {
95  k0[0] = i0;
96  for (unsigned int i1 = 0; i1 < 256; ++i1)
97  {
98  k1[0] = i1;
99  ASSERT_EQ(!crypto_verify_32(k0, k1), i0 == i1);
100  }
101  }
102 }
const uint32_t T[512]
const CharType(& source)[N]
Definition: pointer.h:1147
int crypto_verify_32(const unsigned char *, const unsigned char *)
#define EXPECT_TRUE(condition)
Definition: gtest.h:1859
::std::string string
Definition: gtest-port.h:1097
unsigned char uint8_t
Definition: stdint.h:124
const crypto::secret_key null_skey
Definition: crypto.cpp:73
#define ASSERT_EQ(val1, val2)
Definition: gtest.h:1956
const crypto::public_key null_pkey
Definition: crypto.cpp:72
const GenericPointer< typename T::ValueType > T2 value
Definition: pointer.h:1225
void * memcpy(void *a, const void *b, size_t c)
T & unwrap(mlocked< T > &src)
Definition: mlocker.h:80
key zero()
Definition: rctOps.h:70
TEST(Crypto, Ostream)
Definition: crypto.cpp:70