Check PKCS7 structures in PKCS#12 files are of type data.
[openssl.git] / crypto / pkcs12 / p12_crpt.c
index ae516ee..bbc13e5 100644 (file)
 
 void PKCS12_PBE_add(void)
 {
-#ifndef NO_RC4
+#ifndef OPENSSL_NO_RC4
 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
                                                         PKCS12_PBE_keyivgen);
 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
                                                         PKCS12_PBE_keyivgen);
 #endif
+#ifndef OPENSSL_NO_DES
 EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
                        EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
 EVP_PBE_alg_add(NID_pbe_WithSHA1And2_Key_TripleDES_CBC, 
                        EVP_des_ede_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
-#ifndef NO_RC2
+#endif
+#ifndef OPENSSL_NO_RC2
 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
                                        EVP_sha1(), PKCS12_PBE_keyivgen);
 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
@@ -82,19 +84,20 @@ EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
 #endif
 }
 
-int PKCS12_PBE_keyivgen (EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
-               ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md, int en_de)
+int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
+               ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de)
 {
        PBEPARAM *pbe;
-       int saltlen, iter;
-       unsigned char *salt, *pbuf;
+       int saltlen, iter, ret;
+       unsigned char *salt;
+       const unsigned char *pbuf;
        unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
 
        /* Extract useful info from parameter */
        pbuf = param->value.sequence->data;
-       if (!(pbe = d2i_PBEPARAM (NULL, &pbuf,
-                                       param->value.sequence->length))) {
-               EVPerr(PKCS12_F_PKCS12_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
+       if (!param || (param->type != V_ASN1_SEQUENCE) ||
+          !(pbe = d2i_PBEPARAM (NULL, &pbuf, param->value.sequence->length))) {
+               PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_DECODE_ERROR);
                return 0;
        }
 
@@ -115,8 +118,8 @@ int PKCS12_PBE_keyivgen (EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
                return 0;
        }
        PBEPARAM_free(pbe);
-       EVP_CipherInit(ctx, cipher, key, iv, en_de);
-       memset(key, 0, EVP_MAX_KEY_LENGTH);
-       memset(iv, 0, EVP_MAX_IV_LENGTH);
-       return 1;
+       ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
+       OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
+       OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
+       return ret;
 }