OpenCoverage

constant_time_locl.h

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/openssl/src/include/internal/constant_time_locl.h

Switch to Source code

Preprocessed file

Line Source Count

1 -

2 static inline unsigned int constant_time_msb(unsigned int a); -

3 -

4 static inline uint32_t constant_time_msb_32(uint32_t a); -

5 -

6 static inline uint64_t constant_time_msb_64(uint64_t a); -

7 -

8 -

9 static inline unsigned int constant_time_lt(unsigned int a, -

10 unsigned int b); -

11 -

12 static inline unsigned char constant_time_lt_8(unsigned int a, -

13 unsigned int b); -

14 -

15 static inline uint64_t constant_time_lt_64(uint64_t a, uint64_t b); -

16 -

17 -

18 static inline unsigned int constant_time_ge(unsigned int a, -

19 unsigned int b); -

20 -

21 static inline unsigned char constant_time_ge_8(unsigned int a, -

22 unsigned int b); -

23 -

24 -

25 static inline unsigned int constant_time_is_zero(unsigned int a); -

26 -

27 static inline unsigned char constant_time_is_zero_8(unsigned int a); -

28 -

29 static inline uint32_t constant_time_is_zero_32(uint32_t a); -

30 -

31 -

32 static inline unsigned int constant_time_eq(unsigned int a, -

33 unsigned int b); -

34 -

35 static inline unsigned char constant_time_eq_8(unsigned int a, -

36 unsigned int b); -

37 -

38 static inline unsigned int constant_time_eq_int(int a, int b); -

39 -

40 static inline unsigned char constant_time_eq_int_8(int a, int b); -

41 static inline unsigned int constant_time_select(unsigned int mask, -

42 unsigned int a, -

43 unsigned int b); -

44 -

45 static inline unsigned char constant_time_select_8(unsigned char mask, -

46 unsigned char a, -

47 unsigned char b); -

48 -

49 -

50 static inline uint32_t constant_time_select_32(uint32_t mask, uint32_t a, -

51 uint32_t b); -

52 -

53 -

54 static inline uint64_t constant_time_select_64(uint64_t mask, uint64_t a, -

55 uint64_t b); -

56 -

57 static inline int constant_time_select_int(unsigned int mask, int a, -

58 int b); -

59 -

60 -

61 static inline unsigned int constant_time_msb(unsigned int a) -

62 { -

return

executed 11388508 times by 3 tests: return 0 - (a >> (sizeof(a) * 8 - 1));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

0 - (a >> (sizeof(a) * 8 - 1));

executed 11388508 times by 3 tests: return 0 - (a >> (sizeof(a) * 8 - 1));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

11388508

64 } -

65 -

66 -

67 static inline uint32_t constant_time_msb_32(uint32_t a) -

68 { -

return

executed 4476 times by 3 tests: return 0 - (a >> 31);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

0 - (a >> 31);

executed 4476 times by 3 tests: return 0 - (a >> 31);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

4476

70 } -

71 -

72 static inline uint64_t constant_time_msb_64(uint64_t a) -

73 { -

return

executed 55 times by 1 test: return 0 - (a >> 63);

Executed by:

constant_time_test

0 - (a >> 63);

executed 55 times by 1 test: return 0 - (a >> 63);

Executed by:

constant_time_test

55

75 } -

76 -

77 static inline size_t constant_time_msb_s(size_t a) -

78 { -

return

executed 1280374 times by 4 tests: return 0 - (a >> (sizeof(a) * 8 - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

0 - (a >> (sizeof(a) * 8 - 1));

executed 1280374 times by 4 tests: return 0 - (a >> (sizeof(a) * 8 - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

1280374

80 } -

81 -

82 static inline unsigned int constant_time_lt(unsigned int a, -

83 unsigned int b) -

84 { -

return

executed 786 times by 2 tests: return constant_time_msb(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test
libcrypto.so.1.1

constant_time_msb(a ^ ((a ^ b) | ((a - b) ^ b)));

executed 786 times by 2 tests: return constant_time_msb(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test
libcrypto.so.1.1

786

86 } -

87 -

88 static inline size_t constant_time_lt_s(size_t a, size_t b) -

89 { -

return

executed 1065283 times by 2 tests: return constant_time_msb_s(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test
libssl.so.1.1

constant_time_msb_s(a ^ ((a ^ b) | ((a - b) ^ b)));

executed 1065283 times by 2 tests: return constant_time_msb_s(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test
libssl.so.1.1

1065283

91 } -

92 -

93 static inline unsigned char constant_time_lt_8(unsigned int a, -

94 unsigned int b) -

95 { -

return

executed 162 times by 1 test: return (unsigned char)constant_time_lt(a, b);

Executed by:

constant_time_test

(unsigned char)constant_time_lt(a, b);

executed 162 times by 1 test: return (unsigned char)constant_time_lt(a, b);

Executed by:

constant_time_test

162

97 } -

98 -

99 static inline uint64_t constant_time_lt_64(uint64_t a, uint64_t b) -

100 { -

return

executed 55 times by 1 test: return constant_time_msb_64(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test

constant_time_msb_64(a ^ ((a ^ b) | ((a - b) ^ b)));

executed 55 times by 1 test: return constant_time_msb_64(a ^ ((a ^ b) | ((a - b) ^ b)));

Executed by:

constant_time_test

55

102 } -

103 -

104 static inline unsigned int constant_time_ge(unsigned int a, -

105 unsigned int b) -

106 { -

return

executed 424 times by 2 tests: return ~constant_time_lt(a, b);

Executed by:

constant_time_test
libcrypto.so.1.1

~constant_time_lt(a, b);

executed 424 times by 2 tests: return ~constant_time_lt(a, b);

Executed by:

constant_time_test
libcrypto.so.1.1

424

108 } -

109 -

110 static inline size_t constant_time_ge_s(size_t a, size_t b) -

111 { -

return

executed 997931 times by 2 tests: return ~constant_time_lt_s(a, b);

Executed by:

constant_time_test
libssl.so.1.1

~constant_time_lt_s(a, b);

executed 997931 times by 2 tests: return ~constant_time_lt_s(a, b);

Executed by:

constant_time_test
libssl.so.1.1

997931

113 } -

114 -

115 static inline unsigned char constant_time_ge_8(unsigned int a, -

116 unsigned int b) -

117 { -

return

executed 162 times by 1 test: return (unsigned char)constant_time_ge(a, b);

Executed by:

constant_time_test

(unsigned char)constant_time_ge(a, b);

executed 162 times by 1 test: return (unsigned char)constant_time_ge(a, b);

Executed by:

constant_time_test

162

119 } -

120 -

121 static inline unsigned char constant_time_ge_8_s(size_t a, size_t b) -

122 { -

return

executed 992568 times by 1 test: return (unsigned char)constant_time_ge_s(a, b);

Executed by:

libssl.so.1.1

(unsigned char)constant_time_ge_s(a, b);

executed 992568 times by 1 test: return (unsigned char)constant_time_ge_s(a, b);

Executed by:

libssl.so.1.1

992568

124 } -

125 -

126 static inline unsigned int constant_time_is_zero(unsigned int a) -

127 { -

return

executed 11387722 times by 3 tests: return constant_time_msb(~a & (a - 1));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

constant_time_msb(~a & (a - 1));

executed 11387722 times by 3 tests: return constant_time_msb(~a & (a - 1));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

11387722

129 } -

130 -

131 static inline size_t constant_time_is_zero_s(size_t a) -

132 { -

return

executed 215091 times by 4 tests: return constant_time_msb_s(~a & (a - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

constant_time_msb_s(~a & (a - 1));

executed 215091 times by 4 tests: return constant_time_msb_s(~a & (a - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

215091

134 } -

135 -

136 static inline unsigned char constant_time_is_zero_8(unsigned int a) -

137 { -

return

executed 29879 times by 2 tests: return (unsigned char)constant_time_is_zero(a);

Executed by:

constant_time_test
libssl.so.1.1

(unsigned char)constant_time_is_zero(a);

executed 29879 times by 2 tests: return (unsigned char)constant_time_is_zero(a);

Executed by:

constant_time_test
libssl.so.1.1

29879

139 } -

140 -

141 static inline uint32_t constant_time_is_zero_32(uint32_t a) -

142 { -

return

executed 4476 times by 3 tests: return constant_time_msb_32(~a & (a - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

constant_time_msb_32(~a & (a - 1));

executed 4476 times by 3 tests: return constant_time_msb_32(~a & (a - 1));

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

4476

144 } -

145 -

146 static inline unsigned int constant_time_eq(unsigned int a, -

147 unsigned int b) -

148 { -

return

executed 11313822 times by 3 tests: return constant_time_is_zero(a ^ b);

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

constant_time_is_zero(a ^ b);

executed 11313822 times by 3 tests: return constant_time_is_zero(a ^ b);

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

11313822

150 } -

151 -

152 static inline size_t constant_time_eq_s(size_t a, size_t b) -

153 { -

return

executed 39401 times by 2 tests: return constant_time_is_zero_s(a ^ b);

Executed by:

constant_time_test
libssl.so.1.1

constant_time_is_zero_s(a ^ b);

executed 39401 times by 2 tests: return constant_time_is_zero_s(a ^ b);

Executed by:

constant_time_test
libssl.so.1.1

39401

155 } -

156 -

157 static inline unsigned char constant_time_eq_8(unsigned int a, -

158 unsigned int b) -

159 { -

return

executed 911 times by 2 tests: return (unsigned char)constant_time_eq(a, b);

Executed by:

constant_time_test
libssl.so.1.1

(unsigned char)constant_time_eq(a, b);

executed 911 times by 2 tests: return (unsigned char)constant_time_eq(a, b);

Executed by:

constant_time_test
libssl.so.1.1

911

161 } -

162 -

163 static inline unsigned char constant_time_eq_8_s(size_t a, size_t b) -

164 { -

return

executed 3094 times by 1 test: return (unsigned char)constant_time_eq_s(a, b);

Executed by:

libssl.so.1.1

(unsigned char)constant_time_eq_s(a, b);

executed 3094 times by 1 test: return (unsigned char)constant_time_eq_s(a, b);

Executed by:

libssl.so.1.1

3094

166 } -

167 -

168 static inline unsigned int constant_time_eq_int(int a, int b) -

169 { -

return

executed 11279076 times by 3 tests: return constant_time_eq((unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

constant_time_eq((unsigned)(a), (unsigned)(b));

executed 11279076 times by 3 tests: return constant_time_eq((unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

11279076

171 } -

172 -

173 static inline unsigned char constant_time_eq_int_8(int a, int b) -

174 { -

return

executed 459 times by 2 tests: return constant_time_eq_8((unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libssl.so.1.1

constant_time_eq_8((unsigned)(a), (unsigned)(b));

executed 459 times by 2 tests: return constant_time_eq_8((unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libssl.so.1.1

459

176 } -

177 -

178 static inline unsigned int constant_time_select(unsigned int mask, -

179 unsigned int a, -

180 unsigned int b) -

181 { -

return

executed 33910362 times by 4 tests: return (mask & a) | (~mask & b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

(mask & a) | (~mask & b);

executed 33910362 times by 4 tests: return (mask & a) | (~mask & b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

33910362

183 } -

184 -

185 static inline size_t constant_time_select_s(size_t mask, -

186 size_t a, -

187 size_t b) -

188 { -

return

executed 200 times by 1 test: return (mask & a) | (~mask & b);

Executed by:

constant_time_test

(mask & a) | (~mask & b);

executed 200 times by 1 test: return (mask & a) | (~mask & b);

Executed by:

constant_time_test

200

190 } -

191 -

192 static inline unsigned char constant_time_select_8(unsigned char mask, -

193 unsigned char a, -

194 unsigned char b) -

195 { -

return

executed 33856626 times by 4 tests: return (unsigned char)constant_time_select(mask, a, b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

(unsigned char)constant_time_select(mask, a, b);

executed 33856626 times by 4 tests: return (unsigned char)constant_time_select(mask, a, b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1
libssl.so.1.1

33856626

197 } -

198 -

199 static inline int constant_time_select_int(unsigned int mask, int a, -

200 int b) -

201 { -

return

executed 48373 times by 3 tests: return (int)constant_time_select(mask, (unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

(int)constant_time_select(mask, (unsigned)(a), (unsigned)(b));

executed 48373 times by 3 tests: return (int)constant_time_select(mask, (unsigned)(a), (unsigned)(b));

Executed by:

constant_time_test
libcrypto.so.1.1
libssl.so.1.1

48373

203 } -

204 -

205 static inline int constant_time_select_int_s(size_t mask, int a, int b) -

206 { -

return

executed 5163 times by 1 test: return (int)constant_time_select((unsigned)mask, (unsigned)(a), (unsigned)(b));

Executed by:

libssl.so.1.1

(int)constant_time_select((unsigned)mask, (unsigned)(a),

executed 5163 times by 1 test: return (int)constant_time_select((unsigned)mask, (unsigned)(a), (unsigned)(b));

Executed by:

libssl.so.1.1

5163

(unsigned)(b));

executed 5163 times by 1 test: return (int)constant_time_select((unsigned)mask, (unsigned)(a), (unsigned)(b));

Executed by:

libssl.so.1.1

5163

209 } -

210 -

211 static inline uint32_t constant_time_select_32(uint32_t mask, uint32_t a, -

212 uint32_t b) -

213 { -

return

executed 176130 times by 3 tests: return (mask & a) | (~mask & b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

(mask & a) | (~mask & b);

executed 176130 times by 3 tests: return (mask & a) | (~mask & b);

Executed by:

constant_time_test
curve448_internal_test
libcrypto.so.1.1

176130

215 } -

216 -

217 static inline uint64_t constant_time_select_64(uint64_t mask, uint64_t a, -

218 uint64_t b) -

219 { -

return

executed 110 times by 1 test: return (mask & a) | (~mask & b);

Executed by:

constant_time_test

(mask & a) | (~mask & b);

executed 110 times by 1 test: return (mask & a) | (~mask & b);

Executed by:

constant_time_test

110

221 } -

222 static inline void constant_time_cond_swap_32(uint32_t mask, uint32_t *a, -

223 uint32_t *b) -

224 { -

225 uint32_t xor = *a ^ *b; -

226 -

227 xor &= mask; -

228 *a ^= xor; -

229 *b ^= xor; -

}

executed 14744832 times by 2 tests: end of block

Executed by:

curve448_internal_test
libcrypto.so.1.1

14744832

231 static inline void constant_time_cond_swap_64(uint64_t mask, uint64_t *a, -

232 uint64_t *b) -

233 { -

234 uint64_t xor = *a ^ *b; -

235 -

236 xor &= mask; -

237 *a ^= xor; -

238 *b ^= xor; -

}

never executed: end of block

0

240 -

241 -

242 -

243 -

244 -

245 -

246 static inline void constant_time_lookup(void *out, -

247 const void *table, -

248 size_t rowsize, -

249 size_t numrows, -

250 size_t idx) -

251 { -

252 size_t i, j; -

253 const unsigned char *tablec = (const unsigned char *)table; -

254 unsigned char *outc = (unsigned char *)out; -

255 unsigned char mask; -

256 -

257 memset(out, 0, rowsize); -

258 -

259 -

for (i = 0; i < numrows

i < numrows	Description
TRUE	evaluated 175680 times by 2 tests Evaluated by: curve448_internal_test libcrypto.so.1.1
FALSE	evaluated 10980 times by 2 tests Evaluated by: curve448_internal_test libcrypto.so.1.1

; i++, idx--) {

10980-175680

261 mask = (unsigned char)constant_time_is_zero_s(idx); -

for (j = 0; j < rowsize

j < rowsize	Description
TRUE	evaluated 33730560 times by 2 tests Evaluated by: curve448_internal_test libcrypto.so.1.1
FALSE	evaluated 175680 times by 2 tests Evaluated by: curve448_internal_test libcrypto.so.1.1

; j++)

175680-33730560

*(

executed 33730560 times by 2 tests: *(outc + j) |= constant_time_select_8(mask, *(tablec++), 0);

Executed by:

curve448_internal_test
libcrypto.so.1.1

outc + j) |= constant_time_select_8(mask, *(tablec++), 0);

executed 33730560 times by 2 tests: *(outc + j) |= constant_time_select_8(mask, *(tablec++), 0);

Executed by:

curve448_internal_test
libcrypto.so.1.1

33730560

}

executed 175680 times by 2 tests: end of block

Executed by:

curve448_internal_test
libcrypto.so.1.1

175680

}

executed 10980 times by 2 tests: end of block

Executed by:

curve448_internal_test
libcrypto.so.1.1

10980

Switch to Source code

Preprocessed file

Generated by Squish Coco 4.2.2