-/* crypto/pkcs7/pk7_doit.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
int ret = 0;
size_t eklen;
- pkey = X509_get_pubkey(ri->cert);
+ pkey = X509_get0_pubkey(ri->cert);
if (!pkey)
return 0;
ret = 1;
err:
- if (pkey)
- EVP_PKEY_free(pkey);
- if (pctx)
- EVP_PKEY_CTX_free(pctx);
- if (ek)
- OPENSSL_free(ek);
+ EVP_PKEY_CTX_free(pctx);
+ OPENSSL_free(ek);
return ret;
}
ret = 1;
- if (*pek) {
- OPENSSL_cleanse(*pek, *peklen);
- OPENSSL_free(*pek);
- }
-
+ OPENSSL_clear_free(*pek, *peklen);
*pek = ek;
*peklen = eklen;
err:
- if (pctx)
- EVP_PKEY_CTX_free(pctx);
- if (!ret && ek)
+ EVP_PKEY_CTX_free(pctx);
+ if (!ret)
OPENSSL_free(ek);
return ret;
{
int ret;
ret = X509_NAME_cmp(ri->issuer_and_serial->issuer,
- pcert->cert_info->issuer);
+ X509_get_issuer_name(pcert));
if (ret)
return ret;
- return ASN1_INTEGER_cmp(pcert->cert_info->serialNumber,
- ri->issuer_and_serial->serial);
+ return ASN1_INTEGER_cmp(X509_get_serialNumber(pcert),
+ ri->issuer_and_serial->serial);
}
/* int */
switch (i) {
case NID_pkcs7_signed:
+ /*
+ * p7->d.sign->contents is a PKCS7 structure consisting of a contentType
+ * field and optional content.
+ * data_body is NULL if that structure has no (=detached) content
+ * or if the contentType is wrong (i.e., not "data").
+ */
data_body = PKCS7_get_octet_string(p7->d.sign->contents);
if (!PKCS7_is_detached(p7) && data_body == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
case NID_pkcs7_signedAndEnveloped:
rsk = p7->d.signed_and_enveloped->recipientinfo;
md_sk = p7->d.signed_and_enveloped->md_algs;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
data_body = p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg = p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
case NID_pkcs7_enveloped:
rsk = p7->d.enveloped->recipientinfo;
enc_alg = p7->d.enveloped->enc_data->algorithm;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
data_body = p7->d.enveloped->enc_data->enc_data;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL) {
goto err;
}
+ /* Detached content must be supplied via in_bio instead. */
+ if (data_body == NULL && in_bio == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
+ goto err;
+ }
+
/* We will be checking the signature */
if (md_sk != NULL) {
for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
/* Generate random key as MMA defence */
tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
tkey = OPENSSL_malloc(tkeylen);
- if (!tkey)
+ if (tkey == NULL)
goto err;
if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
goto err;
*/
if (!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen)) {
/* Use random key as MMA defence */
- OPENSSL_cleanse(ek, eklen);
- OPENSSL_free(ek);
+ OPENSSL_clear_free(ek, eklen);
ek = tkey;
eklen = tkeylen;
tkey = NULL;
if (EVP_CipherInit_ex(evp_ctx, NULL, NULL, ek, NULL, 0) <= 0)
goto err;
- if (ek) {
- OPENSSL_cleanse(ek, eklen);
- OPENSSL_free(ek);
- ek = NULL;
- }
- if (tkey) {
- OPENSSL_cleanse(tkey, tkeylen);
- OPENSSL_free(tkey);
- tkey = NULL;
- }
+ OPENSSL_clear_free(ek, eklen);
+ ek = NULL;
+ OPENSSL_clear_free(tkey, tkeylen);
+ tkey = NULL;
if (out == NULL)
out = etmp;
BIO_push(out, etmp);
etmp = NULL;
}
- if (PKCS7_is_detached(p7) || (in_bio != NULL)) {
+ if (in_bio != NULL) {
bio = in_bio;
} else {
if (data_body->length > 0)
bio = BIO_new_mem_buf(data_body->data, data_body->length);
else {
bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
BIO_set_mem_eof_return(bio, 0);
}
if (bio == NULL)
}
BIO_push(out, bio);
bio = NULL;
- if (0) {
+ return out;
+
err:
- if (ek) {
- OPENSSL_cleanse(ek, eklen);
- OPENSSL_free(ek);
- }
- if (tkey) {
- OPENSSL_cleanse(tkey, tkeylen);
- OPENSSL_free(tkey);
- }
- BIO_free_all(out);
- BIO_free_all(btmp);
- BIO_free_all(etmp);
- BIO_free_all(bio);
- out = NULL;
- }
- return (out);
+ OPENSSL_clear_free(ek, eklen);
+ OPENSSL_clear_free(tkey, tkeylen);
+ BIO_free_all(out);
+ BIO_free_all(btmp);
+ BIO_free_all(etmp);
+ BIO_free_all(bio);
+ return NULL;
}
static BIO *PKCS7_find_digest(EVP_MD_CTX **pmd, BIO *bio, int nid)
int i, j;
BIO *btmp;
PKCS7_SIGNER_INFO *si;
- EVP_MD_CTX *mdc, ctx_tmp;
+ EVP_MD_CTX *mdc, *ctx_tmp;
STACK_OF(X509_ATTRIBUTE) *sk;
STACK_OF(PKCS7_SIGNER_INFO) *si_sk = NULL;
ASN1_OCTET_STRING *os = NULL;
return 0;
}
- EVP_MD_CTX_init(&ctx_tmp);
+ ctx_tmp = EVP_MD_CTX_new();
+ if (ctx_tmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
i = OBJ_obj2nid(p7->type);
p7->state = PKCS7_S_HEADER;
/* XXXXXXXXXXXXXXXX */
si_sk = p7->d.signed_and_enveloped->signer_info;
os = p7->d.signed_and_enveloped->enc_data->enc_data;
- if (!os) {
+ if (os == NULL) {
os = ASN1_OCTET_STRING_new();
- if (!os) {
+ if (os == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
goto err;
}
case NID_pkcs7_enveloped:
/* XXXXXXXXXXXXXXXX */
os = p7->d.enveloped->enc_data->enc_data;
- if (!os) {
+ if (os == NULL) {
os = ASN1_OCTET_STRING_new();
- if (!os) {
+ if (os == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
goto err;
}
/*
* We now have the EVP_MD_CTX, lets do the signing.
*/
- if (!EVP_MD_CTX_copy_ex(&ctx_tmp, mdc))
+ if (!EVP_MD_CTX_copy_ex(ctx_tmp, mdc))
goto err;
sk = si->auth_attr;
* sign the attributes
*/
if (sk_X509_ATTRIBUTE_num(sk) > 0) {
- if (!do_pkcs7_signed_attrib(si, &ctx_tmp))
+ if (!do_pkcs7_signed_attrib(si, ctx_tmp))
goto err;
} else {
unsigned char *abuf = NULL;
unsigned int abuflen;
abuflen = EVP_PKEY_size(si->pkey);
abuf = OPENSSL_malloc(abuflen);
- if (!abuf)
+ if (abuf == NULL)
goto err;
- if (!EVP_SignFinal(&ctx_tmp, abuf, &abuflen, si->pkey)) {
+ if (!EVP_SignFinal(ctx_tmp, abuf, &abuflen, si->pkey)) {
+ OPENSSL_free(abuf);
PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_EVP_LIB);
goto err;
}
goto err;
if (!EVP_DigestFinal_ex(mdc, md_data, &md_len))
goto err;
- ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len);
+ if (!ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len))
+ goto err;
}
if (!PKCS7_is_detached(p7)) {
}
ret = 1;
err:
- EVP_MD_CTX_cleanup(&ctx_tmp);
+ EVP_MD_CTX_free(ctx_tmp);
return (ret);
}
int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si)
{
- EVP_MD_CTX mctx;
+ EVP_MD_CTX *mctx;
EVP_PKEY_CTX *pctx;
unsigned char *abuf = NULL;
int alen;
if (md == NULL)
return 0;
- EVP_MD_CTX_init(&mctx);
- if (EVP_DigestSignInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
+ mctx = EVP_MD_CTX_new();
+ if (mctx == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_DigestSignInit(mctx, &pctx, md, NULL, si->pkey) <= 0)
goto err;
if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
ASN1_ITEM_rptr(PKCS7_ATTR_SIGN));
if (!abuf)
goto err;
- if (EVP_DigestSignUpdate(&mctx, abuf, alen) <= 0)
+ if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0)
goto err;
OPENSSL_free(abuf);
abuf = NULL;
- if (EVP_DigestSignFinal(&mctx, NULL, &siglen) <= 0)
+ if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0)
goto err;
abuf = OPENSSL_malloc(siglen);
- if (!abuf)
+ if (abuf == NULL)
goto err;
- if (EVP_DigestSignFinal(&mctx, abuf, &siglen) <= 0)
+ if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0)
goto err;
if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
goto err;
}
- EVP_MD_CTX_cleanup(&mctx);
+ EVP_MD_CTX_free(mctx);
ASN1_STRING_set0(si->enc_digest, abuf, siglen);
return 1;
err:
- if (abuf)
- OPENSSL_free(abuf);
- EVP_MD_CTX_cleanup(&mctx);
+ OPENSSL_free(abuf);
+ EVP_MD_CTX_free(mctx);
return 0;
}
X509 *x509)
{
ASN1_OCTET_STRING *os;
- EVP_MD_CTX mdc_tmp, *mdc;
+ EVP_MD_CTX *mdc_tmp, *mdc;
int ret = 0, i;
int md_type;
STACK_OF(X509_ATTRIBUTE) *sk;
BIO *btmp;
EVP_PKEY *pkey;
- EVP_MD_CTX_init(&mdc_tmp);
+ mdc_tmp = EVP_MD_CTX_new();
+ if (mdc_tmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
if (!PKCS7_type_is_signed(p7) && !PKCS7_type_is_signedAndEnveloped(p7)) {
PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_WRONG_PKCS7_TYPE);
* mdc is the digest ctx that we want, unless there are attributes, in
* which case the digest is the signed attributes
*/
- if (!EVP_MD_CTX_copy_ex(&mdc_tmp, mdc))
+ if (!EVP_MD_CTX_copy_ex(mdc_tmp, mdc))
goto err;
sk = si->auth_attr;
int alen;
ASN1_OCTET_STRING *message_digest;
- if (!EVP_DigestFinal_ex(&mdc_tmp, md_dat, &md_len))
+ if (!EVP_DigestFinal_ex(mdc_tmp, md_dat, &md_len))
goto err;
message_digest = PKCS7_digest_from_attributes(sk);
if (!message_digest) {
goto err;
}
- if (!EVP_VerifyInit_ex(&mdc_tmp, EVP_get_digestbynid(md_type), NULL))
+ if (!EVP_VerifyInit_ex(mdc_tmp, EVP_get_digestbynid(md_type), NULL))
goto err;
alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf,
ret = -1;
goto err;
}
- if (!EVP_VerifyUpdate(&mdc_tmp, abuf, alen))
+ if (!EVP_VerifyUpdate(mdc_tmp, abuf, alen))
goto err;
OPENSSL_free(abuf);
}
os = si->enc_digest;
- pkey = X509_get_pubkey(x509);
+ pkey = X509_get0_pubkey(x509);
if (!pkey) {
ret = -1;
goto err;
}
- i = EVP_VerifyFinal(&mdc_tmp, os->data, os->length, pkey);
- EVP_PKEY_free(pkey);
+ i = EVP_VerifyFinal(mdc_tmp, os->data, os->length, pkey);
if (i <= 0) {
PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_SIGNATURE_FAILURE);
ret = -1;
goto err;
- } else
- ret = 1;
+ }
+ ret = 1;
err:
- EVP_MD_CTX_cleanup(&mdc_tmp);
+ EVP_MD_CTX_free(mdc_tmp);
return (ret);
}
rsk = p7->d.signed_and_enveloped->recipientinfo;
if (rsk == NULL)
return NULL;
- ri = sk_PKCS7_RECIP_INFO_value(rsk, 0);
if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx)
return (NULL);
ri = sk_PKCS7_RECIP_INFO_value(rsk, idx);
ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk)
{
ASN1_TYPE *astype;
- if (!(astype = get_attribute(sk, NID_pkcs9_messageDigest)))
+ if ((astype = get_attribute(sk, NID_pkcs9_messageDigest)) == NULL)
return NULL;
return astype->value.octet_string;
}
{
int i;
- if (p7si->auth_attr != NULL)
- sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr, X509_ATTRIBUTE_free);
+ sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr, X509_ATTRIBUTE_free);
p7si->auth_attr = sk_X509_ATTRIBUTE_dup(sk);
if (p7si->auth_attr == NULL)
return 0;
== NULL)
return (0);
}
- return (1);
+ return 1;
}
int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si,
{
int i;
- if (p7si->unauth_attr != NULL)
- sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr, X509_ATTRIBUTE_free);
+ sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr, X509_ATTRIBUTE_free);
p7si->unauth_attr = sk_X509_ATTRIBUTE_dup(sk);
if (p7si->unauth_attr == NULL)
return 0;
== NULL)
return (0);
}
- return (1);
+ return 1;
}
int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
X509_ATTRIBUTE *attr = NULL;
if (*sk == NULL) {
- *sk = sk_X509_ATTRIBUTE_new_null();
- if (*sk == NULL)
+ if ((*sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
return 0;
new_attrib:
- if (!(attr = X509_ATTRIBUTE_create(nid, atrtype, value)))
+ if ((attr = X509_ATTRIBUTE_create(nid, atrtype, value)) == NULL)
return 0;
if (!sk_X509_ATTRIBUTE_push(*sk, attr)) {
X509_ATTRIBUTE_free(attr);
goto new_attrib;
}
end:
- return (1);
+ return 1;
}