OpenCoverage

dsa_asn1.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/dsa/dsa_asn1.c
Source codeSwitch to Preprocessed file
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1/*-
2 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
4 * Licensed under the OpenSSL license (the "License"). You may not use-
5 * this file except in compliance with the License. You can obtain a copy-
6 * in the file LICENSE in the source distribution or at-
7 * https://www.openssl.org/source/license.html-
8 */-
9-
10#include <stdio.h>-
11#include "internal/cryptlib.h"-
12#include "dsa_locl.h"-
13#include <openssl/asn1.h>-
14#include <openssl/asn1t.h>-
15#include <openssl/rand.h>-
16-
17ASN1_SEQUENCE(DSA_SIG) = {-
18 ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),-
19 ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)-
20} static_ASN1_SEQUENCE_END(DSA_SIG)-
21-
22IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA_SIG, DSA_SIG, DSA_SIG)
executed 3694 times by 1 test: return (DSA_SIG *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, (&(DSA_SIG_it)));
Executed by:
  • libcrypto.so.1.1
executed 379 times by 1 test: return ASN1_item_i2d((ASN1_VALUE *)a, out, (&(DSA_SIG_it)));
Executed by:
  • libcrypto.so.1.1
379-3694
23-
24DSA_SIG *DSA_SIG_new(void)-
25{-
26 DSA_SIG *sig = OPENSSL_zalloc(sizeof(*sig));-
27 if (sig == NULL)
sig == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 371 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-371
28 DSAerr(DSA_F_DSA_SIG_NEW, ERR_R_MALLOC_FAILURE);
never executed: ERR_put_error(10,(102),((1|64)),__FILE__,28);
0
29 return sig;
executed 371 times by 1 test: return sig;
Executed by:
  • libcrypto.so.1.1
371
30}-
31-
32void DSA_SIG_free(DSA_SIG *sig)-
33{-
34 if (sig == NULL)
sig == ((void *)0)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 400 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-400
35 return;
executed 2 times by 1 test: return;
Executed by:
  • libcrypto.so.1.1
2
36 BN_clear_free(sig->r);-
37 BN_clear_free(sig->s);-
38 OPENSSL_free(sig);-
39}
executed 400 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
400
40-
41void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)-
42{-
43 if (pr != NULL)
pr != ((void *)0)Description
TRUEevaluated 321 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-321
44 *pr = sig->r;
executed 321 times by 1 test: *pr = sig->r;
Executed by:
  • libcrypto.so.1.1
321
45 if (ps != NULL)
ps != ((void *)0)Description
TRUEevaluated 321 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-321
46 *ps = sig->s;
executed 321 times by 1 test: *ps = sig->s;
Executed by:
  • libcrypto.so.1.1
321
47}
executed 321 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
321
48-
49int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s)-
50{-
51 if (r == NULL || s == NULL)
r == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
s == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
52 return 0;
never executed: return 0;
0
53 BN_clear_free(sig->r);-
54 BN_clear_free(sig->s);-
55 sig->r = r;-
56 sig->s = s;-
57 return 1;
never executed: return 1;
0
58}-
59-
60/* Override the default free and new methods */-
61static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,-
62 void *exarg)-
63{-
64 if (operation == ASN1_OP_NEW_PRE) {
operation == 0Description
TRUEevaluated 15092 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 30349 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
15092-30349
65 *pval = (ASN1_VALUE *)DSA_new();-
66 if (*pval != NULL)
*pval != ((void *)0)Description
TRUEevaluated 15092 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-15092
67 return 2;
executed 15092 times by 1 test: return 2;
Executed by:
  • libcrypto.so.1.1
15092
68 return 0;
never executed: return 0;
0
69 } else if (operation == ASN1_OP_FREE_PRE) {
operation == 2Description
TRUEevaluated 10559 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 19790 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
10559-19790
70 DSA_free((DSA *)*pval);-
71 *pval = NULL;-
72 return 2;
executed 10559 times by 1 test: return 2;
Executed by:
  • libcrypto.so.1.1
10559
73 }-
74 return 1;
executed 19790 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
19790
75}-
76-
77ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {-
78 ASN1_EMBED(DSA, version, INT32),-
79 ASN1_SIMPLE(DSA, p, BIGNUM),-
80 ASN1_SIMPLE(DSA, q, BIGNUM),-
81 ASN1_SIMPLE(DSA, g, BIGNUM),-
82 ASN1_SIMPLE(DSA, pub_key, BIGNUM),-
83 ASN1_SIMPLE(DSA, priv_key, CBIGNUM)-
84} static_ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey)-
85-
86IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey)
executed 5360 times by 1 test: return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, (&(DSAPrivateKey_it)));
Executed by:
  • libcrypto.so.1.1
executed 27 times by 1 test: return ASN1_item_i2d((ASN1_VALUE *)a, out, (&(DSAPrivateKey_it)));
Executed by:
  • libcrypto.so.1.1
27-5360
87-
88ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {-
89 ASN1_SIMPLE(DSA, p, BIGNUM),-
90 ASN1_SIMPLE(DSA, q, BIGNUM),-
91 ASN1_SIMPLE(DSA, g, BIGNUM),-
92} static_ASN1_SEQUENCE_END_cb(DSA, DSAparams)-
93-
94IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams)
executed 7493 times by 1 test: return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, (&(DSAparams_it)));
Executed by:
  • libcrypto.so.1.1
executed 35 times by 1 test: return ASN1_item_i2d((ASN1_VALUE *)a, out, (&(DSAparams_it)));
Executed by:
  • libcrypto.so.1.1
35-7493
95-
96ASN1_SEQUENCE_cb(DSAPublicKey, dsa_cb) = {-
97 ASN1_SIMPLE(DSA, pub_key, BIGNUM),-
98 ASN1_SIMPLE(DSA, p, BIGNUM),-
99 ASN1_SIMPLE(DSA, q, BIGNUM),-
100 ASN1_SIMPLE(DSA, g, BIGNUM)-
101} static_ASN1_SEQUENCE_END_cb(DSA, DSAPublicKey)-
102-
103IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey)
executed 3323 times by 1 test: return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, (&(DSAPublicKey_it)));
Executed by:
  • libcrypto.so.1.1
executed 3 times by 1 test: return ASN1_item_i2d((ASN1_VALUE *)a, out, (&(DSAPublicKey_it)));
Executed by:
  • libcrypto.so.1.1
3-3323
104-
105DSA *DSAparams_dup(DSA *dsa)-
106{-
107 return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa);
never executed: return ASN1_item_dup((&(DSAparams_it)), dsa);
0
108}-
109-
110int DSA_sign(int type, const unsigned char *dgst, int dlen,-
111 unsigned char *sig, unsigned int *siglen, DSA *dsa)-
112{-
113 DSA_SIG *s;-
114-
115 s = DSA_do_sign(dgst, dlen, dsa);-
116 if (s == NULL) {
s == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 64 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-64
117 *siglen = 0;-
118 return 0;
never executed: return 0;
0
119 }-
120 *siglen = i2d_DSA_SIG(s, &sig);-
121 DSA_SIG_free(s);-
122 return 1;
executed 64 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
64
123}-
124-
125/* data has already been hashed (probably with SHA or SHA-1). */-
126/*--
127 * returns-
128 * 1: correct signature-
129 * 0: incorrect signature-
130 * -1: error-
131 */-
132int DSA_verify(int type, const unsigned char *dgst, int dgst_len,-
133 const unsigned char *sigbuf, int siglen, DSA *dsa)-
134{-
135 DSA_SIG *s;-
136 const unsigned char *p = sigbuf;-
137 unsigned char *der = NULL;-
138 int derlen = -1;-
139 int ret = -1;-
140-
141 s = DSA_SIG_new();-
142 if (s == NULL)
s == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 307 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-307
143 return ret;
never executed: return ret;
0
144 if (d2i_DSA_SIG(&s, &p, siglen) == NULL)
d2i_DSA_SIG(&s...== ((void *)0)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 305 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-305
145 goto err;
executed 2 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
2
146 /* Ensure signature uses DER and doesn't have trailing garbage */-
147 derlen = i2d_DSA_SIG(s, &der);-
148 if (derlen != siglen || memcmp(sigbuf, der, derlen))
derlen != siglenDescription
TRUEevaluated 3 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 302 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
memcmp(sigbuf, der, derlen)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 301 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
1-302
149 goto err;
executed 4 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
4
150 ret = DSA_do_verify(dgst, dgst_len, s, dsa);-
151 err:
code before this statement executed 301 times by 1 test: err:
Executed by:
  • libcrypto.so.1.1
301
152 OPENSSL_clear_free(der, derlen);-
153 DSA_SIG_free(s);-
154 return ret;
executed 307 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
307
155}-
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