OpenCoverage

p12_decr.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/pkcs12/p12_decr.c
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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 <openssl/pkcs12.h>-
13-
14/* Define this to dump decrypted output to files called DERnnn */-
15/*-
16 * #define OPENSSL_DEBUG_DECRYPT-
17 */-
18-
19/*-
20 * Encrypt/Decrypt a buffer based on password and algor, result in a-
21 * OPENSSL_malloc'ed buffer-
22 */-
23unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,-
24 const char *pass, int passlen,-
25 const unsigned char *in, int inlen,-
26 unsigned char **data, int *datalen, int en_de)-
27{-
28 unsigned char *out = NULL;-
29 int outlen, i;-
30 EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();-
31-
32 if (ctx == NULL) {
ctx == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
33 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);-
34 goto err;
never executed: goto err;
0
35 }-
36-
37 /* Decrypt data */-
38 if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
!EVP_PBE_Ciphe...r, ctx, en_de)Description
TRUEnever evaluated
FALSEnever evaluated
0
39 algor->parameter, ctx, en_de)) {
!EVP_PBE_Ciphe...r, ctx, en_de)Description
TRUEnever evaluated
FALSEnever evaluated
0
40 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,-
41 PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR);-
42 goto err;
never executed: goto err;
0
43 }-
44-
45 if ((out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(ctx)))
(out = CRYPTO_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
46 == NULL) {
(out = CRYPTO_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
47 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);-
48 goto err;
never executed: goto err;
0
49 }-
50-
51 if (!EVP_CipherUpdate(ctx, out, &i, in, inlen)) {
!EVP_CipherUpd...&i, in, inlen)Description
TRUEnever evaluated
FALSEnever evaluated
0
52 OPENSSL_free(out);-
53 out = NULL;-
54 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_EVP_LIB);-
55 goto err;
never executed: goto err;
0
56 }-
57-
58 outlen = i;-
59 if (!EVP_CipherFinal_ex(ctx, out + i, &i)) {
!EVP_CipherFin..., out + i, &i)Description
TRUEnever evaluated
FALSEnever evaluated
0
60 OPENSSL_free(out);-
61 out = NULL;-
62 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,-
63 PKCS12_R_PKCS12_CIPHERFINAL_ERROR);-
64 goto err;
never executed: goto err;
0
65 }-
66 outlen += i;-
67 if (datalen)
datalenDescription
TRUEnever evaluated
FALSEnever evaluated
0
68 *datalen = outlen;
never executed: *datalen = outlen;
0
69 if (data)
dataDescription
TRUEnever evaluated
FALSEnever evaluated
0
70 *data = out;
never executed: *data = out;
0
71 err:
code before this statement never executed: err:
0
72 EVP_CIPHER_CTX_free(ctx);-
73 return out;
never executed: return out;
0
74-
75}-
76-
77/*-
78 * Decrypt an OCTET STRING and decode ASN1 structure if zbuf set zero buffer-
79 * after use.-
80 */-
81-
82void *PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,-
83 const char *pass, int passlen,-
84 const ASN1_OCTET_STRING *oct, int zbuf)-
85{-
86 unsigned char *out;-
87 const unsigned char *p;-
88 void *ret;-
89 int outlen;-
90-
91 if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
!PKCS12_pbe_cr...t, &outlen, 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
92 &out, &outlen, 0)) {
!PKCS12_pbe_cr...t, &outlen, 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
93 PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,-
94 PKCS12_R_PKCS12_PBE_CRYPT_ERROR);-
95 return NULL;
never executed: return ((void *)0) ;
0
96 }-
97 p = out;-
98#ifdef OPENSSL_DEBUG_DECRYPT-
99 {-
100 FILE *op;-
101-
102 char fname[30];-
103 static int fnm = 1;-
104 sprintf(fname, "DER%d", fnm++);-
105 op = fopen(fname, "wb");-
106 fwrite(p, 1, outlen, op);-
107 fclose(op);-
108 }-
109#endif-
110 ret = ASN1_item_d2i(NULL, &p, outlen, it);-
111 if (zbuf)
zbufDescription
TRUEnever evaluated
FALSEnever evaluated
0
112 OPENSSL_cleanse(out, outlen);
never executed: OPENSSL_cleanse(out, outlen);
0
113 if (!ret)
!retDescription
TRUEnever evaluated
FALSEnever evaluated
0
114 PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, PKCS12_R_DECODE_ERROR);
never executed: ERR_put_error(35,(106),(101),__FILE__,114);
0
115 OPENSSL_free(out);-
116 return ret;
never executed: return ret;
0
117}-
118-
119/*-
120 * Encode ASN1 structure and encrypt, return OCTET STRING if zbuf set zero-
121 * encoding.-
122 */-
123-
124ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor,-
125 const ASN1_ITEM *it,-
126 const char *pass, int passlen,-
127 void *obj, int zbuf)-
128{-
129 ASN1_OCTET_STRING *oct = NULL;-
130 unsigned char *in = NULL;-
131 int inlen;-
132-
133 if ((oct = ASN1_OCTET_STRING_new()) == NULL) {
(oct = ASN1_OC...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
134 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, ERR_R_MALLOC_FAILURE);-
135 goto err;
never executed: goto err;
0
136 }-
137 inlen = ASN1_item_i2d(obj, &in, it);-
138 if (!in) {
!inDescription
TRUEnever evaluated
FALSEnever evaluated
0
139 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCODE_ERROR);-
140 goto err;
never executed: goto err;
0
141 }-
142 if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data,
!PKCS12_pbe_cr...ct->length, 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
143 &oct->length, 1)) {
!PKCS12_pbe_cr...ct->length, 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
144 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCRYPT_ERROR);-
145 OPENSSL_free(in);-
146 goto err;
never executed: goto err;
0
147 }-
148 if (zbuf)
zbufDescription
TRUEnever evaluated
FALSEnever evaluated
0
149 OPENSSL_cleanse(in, inlen);
never executed: OPENSSL_cleanse(in, inlen);
0
150 OPENSSL_free(in);-
151 return oct;
never executed: return oct;
0
152 err:-
153 ASN1_OCTET_STRING_free(oct);-
154 return NULL;
never executed: return ((void *)0) ;
0
155}-
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