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timingsafe_memcmp.c

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/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/compat/timingsafe_memcmp.c

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Line Source Count

1 -

2 int -

3 timingsafe_memcmp(const void *b1, const void *b2, size_t len) -

4 { -

5 const unsigned char *p1 = b1, *p2 = b2; -

6 size_t i; -

7 int res = 0, done = 0; -

8 -

for (i = 0; i < len

i < len	Description
TRUE	evaluated 2929930 times by 8 tests Evaluated by: aeadtest bytestringtest rsa_test ssltest timingsafe tlsexttest tlstest x25519test
FALSE	evaluated 362069 times by 8 tests Evaluated by: aeadtest bytestringtest rsa_test ssltest timingsafe tlsexttest tlstest x25519test

; i++) {

362069-2929930

10 -

11 int lt = (p1[i] - p2[i]) >> 8; -

12 -

13 -

14 int gt = (p2[i] - p1[i]) >> 8; -

15 -

16 -

17 int cmp = lt - gt; -

18 -

19 -

20 res |= cmp & ~done; -

21 -

22 -

23 done |= lt | gt; -

}

executed 2929930 times by 8 tests: end of block

Executed by:

aeadtest
bytestringtest
rsa_test
ssltest
timingsafe
tlsexttest
tlstest
x25519test

2929930

25 -

return

executed 362069 times by 8 tests: return (res);

Executed by:

aeadtest
bytestringtest
rsa_test
ssltest
timingsafe
tlsexttest
tlstest
x25519test

(res);

executed 362069 times by 8 tests: return (res);

Executed by:

aeadtest
bytestringtest
rsa_test
ssltest
timingsafe
tlsexttest
tlstest
x25519test

362069

27 } -

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