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bn_kron.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/bn/bn_kron.c
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6int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)-
7{-
8 int i;-
9 int ret = -2;-
10 int err = 0;-
11 BIGNUM *A, *B, *tmp;-
12-
13-
14-
15-
16-
17-
18-
19 static const int tab[8] = { 0, 1, 0, -1, 0, -1, 0, 1 };-
20-
21 ;-
22 ;-
23-
24 BN_CTX_start(ctx);-
25 A = BN_CTX_get(ctx);-
26 B = BN_CTX_get(ctx);-
27 if (B ==
B == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-21124
28 ((void *)0)
B == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-21124
29 )-
30 goto
never executed: goto end;
 end;
never executed: goto end;
0
31-
32 err = !BN_copy(A, a);-
33 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-21124
34 goto
never executed: goto end;
 end;
never executed: goto end;
0
35 err = !BN_copy(B, b);-
36 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-21124
37 goto
never executed: goto end;
 end;
never executed: goto end;
0
38 if (BN_is_zero(B)
BN_is_zero(B)Description
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		0-21124
39 ret = BN_abs_is_word(A, 1);-
40 goto
never executed: goto end;
 end;
never executed: goto end;
0
41 }-
42-
43-
44-
45 if (!BN_is_odd(A)
!BN_is_odd(A)Description
TRUEevaluated 10723 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 10401 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
 && !BN_is_odd(B)
!BN_is_odd(B)Description
TRUEnever evaluated
FALSEevaluated 10723 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		0-10723
46 ret = 0;-
47 goto
never executed: goto end;
 end;
never executed: goto end;
0
48 }-
49-
50-
51 i = 0;-
52 while (!BN_is_bit_set(B, i)
!BN_is_bit_set(B, i)Description
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-21124
53 i++;
never executed: i++;
0
54 err = !BN_rshift(B, B, i);-
55 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-21124
56 goto
never executed: goto end;
 end;
never executed: goto end;
0
57 if (i & 1
i & 1Description
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		0-21124
58-
59-
60-
61-
62 ret = tab[(((A)->top == 0) ? (unsigned long) 0 : (A)->d[0]) & 7];-
63 }
never executed: end of block
 else {		0
64-
65 ret = 1;-
66 }
executed 21124 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
21124
67-
68 if (B->neg
B->negDescription
TRUEevaluated 100 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 21024 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		100-21024
69 B->neg = 0;-
70 if (A->neg
A->negDescription
TRUEevaluated 50 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 50 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		50
71 ret = -ret;
executed 50 times by 1 test: ret = -ret;
Executed by:
  • libcrypto.so.1.1
50
72 }
executed 100 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
100
73-
74-
75-
76-
77-
78-
79 while (1) {-
80-
81-
82-
83-
84 if (BN_is_zero(A)
BN_is_zero(A)Description
TRUEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 101152 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		21124-101152
85 ret = BN_is_one(B)
BN_is_one(B)Description
TRUEevaluated 21119 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 5 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
 ? ret : 0;		5-21119
86 goto
executed 21124 times by 1 test: goto end;
Executed by:
  • libcrypto.so.1.1
 end;
executed 21124 times by 1 test: goto end;
Executed by:
  • libcrypto.so.1.1
21124
87 }-
88-
89-
90 i = 0;-
91 while (!BN_is_bit_set(A, i)
!BN_is_bit_set(A, i)Description
TRUEevaluated 100720 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 101152 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		100720-101152
92 i++;
executed 100720 times by 1 test: i++;
Executed by:
  • libcrypto.so.1.1
100720
93 err = !BN_rshift(A, A, i);-
94 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 101152 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-101152
95 goto
never executed: goto end;
 end;
never executed: goto end;
0
96 if (i & 1
i & 1Description
TRUEevaluated 33446 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 67706 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
) {		33446-67706
97-
98-
99 ret = ret * tab[(((B)->top == 0) ? (unsigned long) 0 : (B)->d[0]) & 7];-
100 }
executed 33446 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
33446
101-
102-
103-
104 if ((
(A->neg ? ~(((...(B)->d[0]) & 2Description
TRUEevaluated 16549 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 84603 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
A->neg
A->negDescription
TRUEevaluated 50 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 101102 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
 ? ~(((A)->top == 0) ? (unsigned long) 0 : (A)->d[0]) : (((
((A)->top == 0)Description
TRUEnever evaluated
FALSEevaluated 101102 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
A)->top == 0)
((A)->top == 0)Description
TRUEnever evaluated
FALSEevaluated 101102 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
 ? (unsigned long) 0 : (A)->d[0])) & (((B)->top == 0) ? (unsigned long) 0 : (B)->d[0]) & 2
(A->neg ? ~(((...(B)->d[0]) & 2Description
TRUEevaluated 16549 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 84603 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-101102
105 ret = -ret;
executed 16549 times by 1 test: ret = -ret;
Executed by:
  • libcrypto.so.1.1
16549
106-
107-
108 err = !BN_nnmod(B, B, A, ctx);-
109 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 101152 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-101152
110 goto
never executed: goto end;
 end;
never executed: goto end;
0
111 tmp = A;-
112 A = B;-
113 B = tmp;-
114 tmp->neg = 0;-
115 }
executed 101152 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
101152
116 end:
code before this statement never executed: end:
0
117 BN_CTX_end(ctx);-
118 if (err
errDescription
TRUEnever evaluated
FALSEevaluated 21124 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
)		0-21124
119 return
never executed: return -2;
 -2;
never executed: return -2;
0
120 else-
121 return
executed 21124 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
 ret;
executed 21124 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
21124
122}-
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