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ecp_mont.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/ec/ecp_mont.c
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1-
2-
3const EC_METHOD *EC_GFp_mont_method(void)-
4{-
5 static const EC_METHOD ret = {-
6 0x1,-
7 406,-
8 ec_GFp_mont_group_init,-
9 ec_GFp_mont_group_finish,-
10 ec_GFp_mont_group_clear_finish,-
11 ec_GFp_mont_group_copy,-
12 ec_GFp_mont_group_set_curve,-
13 ec_GFp_simple_group_get_curve,-
14 ec_GFp_simple_group_get_degree,-
15 ec_group_simple_order_bits,-
16 ec_GFp_simple_group_check_discriminant,-
17 ec_GFp_simple_point_init,-
18 ec_GFp_simple_point_finish,-
19 ec_GFp_simple_point_clear_finish,-
20 ec_GFp_simple_point_copy,-
21 ec_GFp_simple_point_set_to_infinity,-
22 ec_GFp_simple_set_Jprojective_coordinates_GFp,-
23 ec_GFp_simple_get_Jprojective_coordinates_GFp,-
24 ec_GFp_simple_point_set_affine_coordinates,-
25 ec_GFp_simple_point_get_affine_coordinates,-
26 0, 0, 0,-
27 ec_GFp_simple_add,-
28 ec_GFp_simple_dbl,-
29 ec_GFp_simple_invert,-
30 ec_GFp_simple_is_at_infinity,-
31 ec_GFp_simple_is_on_curve,-
32 ec_GFp_simple_cmp,-
33 ec_GFp_simple_make_affine,-
34 ec_GFp_simple_points_make_affine,-
35 0 ,-
36 0 ,-
37 0 ,-
38 ec_GFp_mont_field_mul,-
39 ec_GFp_mont_field_sqr,-
40 0 ,-
41 ec_GFp_mont_field_encode,-
42 ec_GFp_mont_field_decode,-
43 ec_GFp_mont_field_set_to_one,-
44 ec_key_simple_priv2oct,-
45 ec_key_simple_oct2priv,-
46 0,-
47 ec_key_simple_generate_key,-
48 ec_key_simple_check_key,-
49 ec_key_simple_generate_public_key,-
50 0,-
51 0,-
52 ecdh_simple_compute_key,-
53 0,-
54 ec_GFp_simple_blind_coordinates,-
55 ec_GFp_simple_ladder_pre,-
56 ec_GFp_simple_ladder_step,-
57 ec_GFp_simple_ladder_post-
58 };-
59-
60 return
executed 8288 times by 2 tests: return &ret;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 &ret;
executed 8288 times by 2 tests: return &ret;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
8288
61}-
62-
63int ec_GFp_mont_group_init(EC_GROUP *group)-
64{-
65 int ok;-
66-
67 ok = ec_GFp_simple_group_init(group);-
68 group->field_data1 = -
69 ((void *)0)-
70 ;-
71 group->field_data2 = -
72 ((void *)0)-
73 ;-
74 return
executed 50449 times by 2 tests: return ok;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 ok;
executed 50449 times by 2 tests: return ok;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
50449
75}-
76-
77void ec_GFp_mont_group_finish(EC_GROUP *group)-
78{-
79 BN_MONT_CTX_free(group->field_data1);-
80 group->field_data1 = -
81 ((void *)0)-
82 ;-
83 BN_free(group->field_data2);-
84 group->field_data2 = -
85 ((void *)0)-
86 ;-
87 ec_GFp_simple_group_finish(group);-
88}
executed 49744 times by 2 tests: end of block
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
49744
89-
90void ec_GFp_mont_group_clear_finish(EC_GROUP *group)-
91{-
92 BN_MONT_CTX_free(group->field_data1);-
93 group->field_data1 = -
94 ((void *)0)-
95 ;-
96 BN_clear_free(group->field_data2);-
97 group->field_data2 = -
98 ((void *)0)-
99 ;-
100 ec_GFp_simple_group_clear_finish(group);-
101}
executed 705 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
705
102-
103int ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src)-
104{-
105 BN_MONT_CTX_free(dest->field_data1);-
106 dest->field_data1 = -
107 ((void *)0)-
108 ;-
109 BN_clear_free(dest->field_data2);-
110 dest->field_data2 = -
111 ((void *)0)-
112 ;-
113-
114 if (!ec_GFp_simple_group_copy(dest, src)
!ec_GFp_simple...opy(dest, src)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
)		0-24081
115 return
never executed: return 0;
 0;
never executed: return 0;
0
116-
117 if (src->field_data1 !=
src->field_dat...!= ((void *)0)Description
TRUEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEnever evaluated
0-24081
118 ((void *)0)
src->field_dat...!= ((void *)0)Description
TRUEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEnever evaluated
0-24081
119 ) {-
120 dest->field_data1 = BN_MONT_CTX_new();-
121 if (dest->field_data1 ==
dest->field_da...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-24081
122 ((void *)0)
dest->field_da...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-24081
123 )-
124 return
never executed: return 0;
 0;
never executed: return 0;
0
125 if (!BN_MONT_CTX_copy(dest->field_data1, src->field_data1)
!BN_MONT_CTX_c...->field_data1)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
)		0-24081
126 goto
never executed: goto err;
 err;
never executed: goto err;
0
127 }
executed 24081 times by 2 tests: end of block
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
24081
128 if (src->field_data2 !=
src->field_dat...!= ((void *)0)Description
TRUEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEnever evaluated
0-24081
129 ((void *)0)
src->field_dat...!= ((void *)0)Description
TRUEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEnever evaluated
0-24081
130 ) {-
131 dest->field_data2 = BN_dup(src->field_data2);-
132 if (dest->field_data2 ==
dest->field_da...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-24081
133 ((void *)0)
dest->field_da...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 24081 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-24081
134 )-
135 goto
never executed: goto err;
 err;
never executed: goto err;
0
136 }
executed 24081 times by 2 tests: end of block
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
24081
137-
138 return
executed 24081 times by 2 tests: return 1;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 1;
executed 24081 times by 2 tests: return 1;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
24081
139-
140 err:-
141 BN_MONT_CTX_free(dest->field_data1);-
142 dest->field_data1 = -
143 ((void *)0)-
144 ;-
145 return
never executed: return 0;
 0;
never executed: return 0;
0
146}-
147-
148int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,-
149 const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)-
150{-
151 BN_CTX *new_ctx = -
152 ((void *)0)-
153 ;-
154 BN_MONT_CTX *mont = -
155 ((void *)0)-
156 ;-
157 BIGNUM *one = -
158 ((void *)0)-
159 ;-
160 int ret = 0;-
161-
162 BN_MONT_CTX_free(group->field_data1);-
163 group->field_data1 = -
164 ((void *)0)-
165 ;-
166 BN_free(group->field_data2);-
167 group->field_data2 = -
168 ((void *)0)-
169 ;-
170-
171 if (ctx ==
ctx == ((void *)0)Description
TRUEevaluated 901 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEevaluated 25473 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
901-25473
172 ((void *)0)
ctx == ((void *)0)Description
TRUEevaluated 901 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
FALSEevaluated 25473 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
901-25473
173 ) {-
174 ctx = new_ctx = BN_CTX_new();-
175 if (ctx ==
ctx == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 901 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-901
176 ((void *)0)
ctx == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 901 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-901
177 )-
178 return
never executed: return 0;
 0;
never executed: return 0;
0
179 }
executed 901 times by 2 tests: end of block
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
901
180-
181 mont = BN_MONT_CTX_new();-
182 if (mont ==
mont == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 26374 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-26374
183 ((void *)0)
mont == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 26374 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-26374
184 )-
185 goto
never executed: goto err;
 err;
never executed: goto err;
0
186 if (!BN_MONT_CTX_set(mont, p, ctx)
!BN_MONT_CTX_set(mont, p, ctx)Description
TRUEevaluated 422 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 25952 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
) {		422-25952
187 ERR_put_error(16,(189),(3),__FILE__,157);-
188 goto
executed 422 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
 err;
executed 422 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
422
189 }-
190 one = BN_new();-
191 if (one ==
one == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 25952 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-25952
192 ((void *)0)
one == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 25952 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-25952
193 )-
194 goto
never executed: goto err;
 err;
never executed: goto err;
0
195 if (!BN_to_montgomery(one, BN_value_one(), mont, ctx)
!BN_to_montgom...(), mont, ctx)Description
TRUEnever evaluated
FALSEevaluated 25952 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
)		0-25952
196 goto
never executed: goto err;
 err;
never executed: goto err;
0
197-
198 group->field_data1 = mont;-
199 mont = -
200 ((void *)0)-
201 ;-
202 group->field_data2 = one;-
203 one = -
204 ((void *)0)-
205 ;-
206-
207 ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx);-
208-
209 if (!ret
!retDescription
TRUEnever evaluated
FALSEevaluated 25952 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
) {		0-25952
210 BN_MONT_CTX_free(group->field_data1);-
211 group->field_data1 = -
212 ((void *)0)-
213 ;-
214 BN_free(group->field_data2);-
215 group->field_data2 = -
216 ((void *)0)-
217 ;-
218 }
never executed: end of block
0
219-
220 err:
code before this statement executed 25952 times by 2 tests: err:
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
25952
221 BN_free(one);-
222 BN_CTX_free(new_ctx);-
223 BN_MONT_CTX_free(mont);-
224 return
executed 26374 times by 2 tests: return ret;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 ret;
executed 26374 times by 2 tests: return ret;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
26374
225}-
226-
227int ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,-
228 const BIGNUM *b, BN_CTX *ctx)-
229{-
230 if (group->field_data1 ==
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 10812907 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-10812907
231 ((void *)0)
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 10812907 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-10812907
232 ) {-
233 ERR_put_error(16,(131),(111),__FILE__,191);-
234 return
never executed: return 0;
 0;
never executed: return 0;
0
235 }-
236-
237 return
executed 10812907 times by 2 tests: return BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx);
executed 10812907 times by 2 tests: return BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
10812907
238}-
239-
240int ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,-
241 BN_CTX *ctx)-
242{-
243 if (group->field_data1 ==
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 5415687 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-5415687
244 ((void *)0)
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 5415687 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-5415687
245 ) {-
246 ERR_put_error(16,(132),(111),__FILE__,202);-
247 return
never executed: return 0;
 0;
never executed: return 0;
0
248 }-
249-
250 return
executed 5415687 times by 2 tests: return BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx);
executed 5415687 times by 2 tests: return BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
5415687
251}-
252-
253int ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r,-
254 const BIGNUM *a, BN_CTX *ctx)-
255{-
256 if (group->field_data1 ==
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 150556 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-150556
257 ((void *)0)
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 150556 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-150556
258 ) {-
259 ERR_put_error(16,(134),(111),__FILE__,213);-
260 return
never executed: return 0;
 0;
never executed: return 0;
0
261 }-
262-
263 return
executed 150556 times by 2 tests: return BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx);
executed 150556 times by 2 tests: return BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
150556
264}-
265-
266int ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r,-
267 const BIGNUM *a, BN_CTX *ctx)-
268{-
269 if (group->field_data1 ==
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 27487 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-27487
270 ((void *)0)
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 27487 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-27487
271 ) {-
272 ERR_put_error(16,(133),(111),__FILE__,224);-
273 return
never executed: return 0;
 0;
never executed: return 0;
0
274 }-
275-
276 return
executed 27487 times by 2 tests: return BN_from_montgomery(r, a, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 BN_from_montgomery(r, a, group->field_data1, ctx);
executed 27487 times by 2 tests: return BN_from_montgomery(r, a, group->field_data1, ctx);
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
27487
277}-
278-
279int ec_GFp_mont_field_set_to_one(const EC_GROUP *group, BIGNUM *r,-
280 BN_CTX *ctx)-
281{-
282 if (group->field_data2 ==
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 63607 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-63607
283 ((void *)0)
group->field_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 63607 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
0-63607
284 ) {-
285 ERR_put_error(16,(209),(111),__FILE__,235);-
286 return
never executed: return 0;
 0;
never executed: return 0;
0
287 }-
288-
289 if (!BN_copy(r, group->field_data2)
!BN_copy(r, gr...->field_data2)Description
TRUEnever evaluated
FALSEevaluated 63607 times by 2 tests
Evaluated by:
  • libcrypto.so.1.1
  • sm2_internal_test
)		0-63607
290 return
never executed: return 0;
 0;
never executed: return 0;
0
291 return
executed 63607 times by 2 tests: return 1;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
 1;
executed 63607 times by 2 tests: return 1;
Executed by:
  • libcrypto.so.1.1
  • sm2_internal_test
63607
292}-
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