OpenCoverage

pem_seal.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/pem/pem_seal.c
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LineSourceCount
1-
2-
3-
4-
5-
6-
7-
8-
9static void-
10PEM_ENCODE_SEAL_CTX_cleanup(PEM_ENCODE_SEAL_CTX *ctx)-
11{-
12 EVP_CIPHER_CTX_cleanup(&ctx->cipher);-
13 EVP_MD_CTX_cleanup(&ctx->md);-
14 explicit_bzero(&ctx->encode, sizeof(ctx->encode));-
15}
never executed: end of block
0
16-
17int-
18PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type, EVP_MD *md_type,-
19 unsigned char **ek, int *ekl, unsigned char *iv, EVP_PKEY **pubk, int npubk)-
20{-
21 unsigned char key[64];-
22 int ret = -1;-
23 int i, j, max = 0;-
24 char *s = -
25 ((void *)0)-
26 ;-
27-
28-
29-
30-
31-
32 EVP_EncodeInit(&ctx->encode);-
33 EVP_MD_CTX_init(&ctx->md);-
34 EVP_CIPHER_CTX_init(&ctx->cipher);-
35-
36 for (i = 0; i < npubk
i < npubkDescription
TRUEnever evaluated
FALSEnever evaluated
; i++) {		0
37 if (pubk[i]->type != 6
pubk[i]->type != 6Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
38 ERR_put_error(9,(0xfff),(110),__FILE__,100);-
39 goto
never executed: goto err;
 err;
never executed: goto err;
0
40 }-
41 j = RSA_size(pubk[i]->pkey.rsa);-
42 if (j > max
j > maxDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
43 max = j;
never executed: max = j;
0
44 }
never executed: end of block
0
45 s = reallocarray(-
46 ((void *)0)-
47 , max, 2);-
48 if (s ==
s == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
49 ((void *)0)
s == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
50 ) {-
51 ERR_put_error(9,(0xfff),((1|64)),__FILE__,109);-
52 goto
never executed: goto err;
 err;
never executed: goto err;
0
53 }-
54-
55 if (!EVP_DigestInit(&ctx->md,md_type)
!EVP_DigestIni...x->md,md_type)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
56 goto
never executed: goto err;
 err;
never executed: goto err;
0
57-
58 ret = EVP_SealInit(&ctx->cipher, type, ek, ekl, iv, pubk, npubk);-
59 if (ret <= 0
ret <= 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
60 goto
never executed: goto err;
 err;
never executed: goto err;
0
61-
62-
63 for (i = 0; i < npubk
i < npubkDescription
TRUEnever evaluated
FALSEnever evaluated
; i++) {		0
64 j = EVP_EncodeBlock((unsigned char *)s, ek[i],-
65 RSA_size(pubk[i]->pkey.rsa));-
66 ekl[i] = j;-
67 memcpy(ek[i], s, j + 1);-
68 }
never executed: end of block
0
69-
70 ret = npubk;-
71-
72 if (0) {-
73err:-
74 PEM_ENCODE_SEAL_CTX_cleanup(ctx);-
75 }
never executed: end of block
0
76 free(s);-
77 explicit_bzero(key, sizeof(key));-
78 return
never executed: return (ret);
 (ret);
never executed: return (ret);
0
79}-
80-
81void-
82PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl,-
83 unsigned char *in, int inl)-
84{-
85 unsigned char buffer[1600];-
86 int i, j;-
87-
88 *outl = 0;-
89 EVP_DigestUpdate(&ctx->md,in,inl);-
90 for (;;) {-
91 if (inl <= 0
inl <= 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
92 break;
never executed: break;
0
93 if (inl > 1200
inl > 1200Description
TRUEnever evaluated
FALSEnever evaluated
)		0
94 i = 1200;
never executed: i = 1200;
0
95 else-
96 i = inl;
never executed: i = inl;
0
97 EVP_EncryptUpdate(&ctx->cipher, buffer, &j, in, i);-
98 EVP_EncodeUpdate(&ctx->encode, out, &j, buffer, j);-
99 *outl += j;-
100 out += j;-
101 in += i;-
102 inl -= i;-
103 }
never executed: end of block
0
104}
never executed: end of block
0
105-
106int-
107PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl,-
108 unsigned char *out, int *outl, EVP_PKEY *priv)-
109{-
110 unsigned char *s = -
111 ((void *)0)-
112 ;-
113 int ret = 0, j;-
114 unsigned int i;-
115-
116 if (priv->type != 6
priv->type != 6Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
117 ERR_put_error(9,(0xfff),(110),__FILE__,173);-
118 goto
never executed: goto err;
 err;
never executed: goto err;
0
119 }-
120 i = RSA_size(priv->pkey.rsa);-
121 if (i < 100
i < 100Description
TRUEnever evaluated
FALSEnever evaluated
)		0
122 i = 100;
never executed: i = 100;
0
123 s = reallocarray(-
124 ((void *)0)-
125 , i, 2);-
126 if (s ==
s == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
127 ((void *)0)
s == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
128 ) {-
129 ERR_put_error(9,(0xfff),((1|64)),__FILE__,181);-
130 goto
never executed: goto err;
 err;
never executed: goto err;
0
131 }-
132-
133 if (!EVP_EncryptFinal_ex(&ctx->cipher, s, (int *)&i)
!EVP_EncryptFi... s, (int *)&i)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
134 goto
never executed: goto err;
 err;
never executed: goto err;
0
135 EVP_EncodeUpdate(&ctx->encode, out, &j, s, i);-
136 *outl = j;-
137 out += j;-
138 EVP_EncodeFinal(&ctx->encode, out, &j);-
139 *outl += j;-
140-
141 if (!EVP_SignFinal(&ctx->md, s, &i, priv)
!EVP_SignFinal..., s, &i, priv)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
142 goto
never executed: goto err;
 err;
never executed: goto err;
0
143 *sigl = EVP_EncodeBlock(sig, s, i);-
144-
145 ret = 1;-
146-
147err:
code before this statement never executed: err:
0
148 PEM_ENCODE_SEAL_CTX_cleanup(ctx);-
149 free(s);-
150 return
never executed: return (ret);
 (ret);
never executed: return (ret);
0
151}-
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