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Merge remote-tracking branch 'origin/master'

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# Conflicts:
#	README.md
This commit is contained in:
Zhi Guan
2017-02-14 16:12:29 +08:00
parent d2254170b8
commit 43fed1108d
3503 changed files with 320546 additions and 408546 deletions
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437
crypto/ts/ts_rsp_verify.c
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@@ -1,99 +1,54 @@
/* crypto/ts/ts_resp_verify.c */
/*
* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
* 2002.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
* Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* 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/objects.h>
#include <openssl/ts.h>
#include <openssl/pkcs7.h>
#include "ts_lcl.h"
/* Private function declarations. */
static int TS_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
static int ts_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
X509 *signer, STACK_OF(X509) **chain);
static int TS_check_signing_certs(PKCS7_SIGNER_INFO *si,
static int ts_check_signing_certs(PKCS7_SIGNER_INFO *si,
STACK_OF(X509) *chain);
static ESS_SIGNING_CERT *ESS_get_signing_cert(PKCS7_SIGNER_INFO *si);
static int TS_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert);
static int TS_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509_CINF *cinfo);
static int int_TS_RESP_verify_token(TS_VERIFY_CTX *ctx,
static ESS_SIGNING_CERT *ess_get_signing_cert(PKCS7_SIGNER_INFO *si);
static int ts_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert);
static int ts_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509 *cert);
static int int_ts_RESP_verify_token(TS_VERIFY_CTX *ctx,
PKCS7 *token, TS_TST_INFO *tst_info);
static int TS_check_status_info(TS_RESP *response);
static char *TS_get_status_text(STACK_OF(ASN1_UTF8STRING) *text);
static int TS_check_policy(ASN1_OBJECT *req_oid, TS_TST_INFO *tst_info);
static int TS_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
static int ts_check_status_info(TS_RESP *response);
static char *ts_get_status_text(STACK_OF(ASN1_UTF8STRING) *text);
static int ts_check_policy(const ASN1_OBJECT *req_oid,
const TS_TST_INFO *tst_info);
static int ts_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
X509_ALGOR **md_alg,
unsigned char **imprint, unsigned *imprint_len);
static int TS_check_imprints(X509_ALGOR *algor_a,
unsigned char *imprint_a, unsigned len_a,
static int ts_check_imprints(X509_ALGOR *algor_a,
const unsigned char *imprint_a, unsigned len_a,
TS_TST_INFO *tst_info);
static int TS_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info);
static int TS_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer);
static int TS_find_name(STACK_OF(GENERAL_NAME) *gen_names,
static int ts_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info);
static int ts_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer);
static int ts_find_name(STACK_OF(GENERAL_NAME) *gen_names,
GENERAL_NAME *name);
/*
* Local mapping between response codes and descriptions.
* Don't forget to change TS_STATUS_BUF_SIZE when modifying
* the elements of this array.
* This must be large enough to hold all values in ts_status_text (with
* comma separator) or all text fields in ts_failure_info (also with comma).
*/
static const char *TS_status_text[] = { "granted",
#define TS_STATUS_BUF_SIZE 256
/*
* Local mapping between response codes and descriptions.
*/
static const char *ts_status_text[] = {
"granted",
"grantedWithMods",
"rejection",
"waiting",
@@ -101,48 +56,22 @@ static const char *TS_status_text[] = { "granted",
"revocationNotification"
};
#define TS_STATUS_TEXT_SIZE (sizeof(TS_status_text)/sizeof(*TS_status_text))
/*
* This must be greater or equal to the sum of the strings in TS_status_text
* plus the number of its elements.
*/
#define TS_STATUS_BUF_SIZE 256
#define TS_STATUS_TEXT_SIZE OSSL_NELEM(ts_status_text)
static struct {
int code;
const char *text;
} TS_failure_info[] = {
{
TS_INFO_BAD_ALG, "badAlg"
},
{
TS_INFO_BAD_REQUEST, "badRequest"
},
{
TS_INFO_BAD_DATA_FORMAT, "badDataFormat"
},
{
TS_INFO_TIME_NOT_AVAILABLE, "timeNotAvailable"
},
{
TS_INFO_UNACCEPTED_POLICY, "unacceptedPolicy"
},
{
TS_INFO_UNACCEPTED_EXTENSION, "unacceptedExtension"
},
{
TS_INFO_ADD_INFO_NOT_AVAILABLE, "addInfoNotAvailable"
},
{
TS_INFO_SYSTEM_FAILURE, "systemFailure"
}
} ts_failure_info[] = {
{TS_INFO_BAD_ALG, "badAlg"},
{TS_INFO_BAD_REQUEST, "badRequest"},
{TS_INFO_BAD_DATA_FORMAT, "badDataFormat"},
{TS_INFO_TIME_NOT_AVAILABLE, "timeNotAvailable"},
{TS_INFO_UNACCEPTED_POLICY, "unacceptedPolicy"},
{TS_INFO_UNACCEPTED_EXTENSION, "unacceptedExtension"},
{TS_INFO_ADD_INFO_NOT_AVAILABLE, "addInfoNotAvailable"},
{TS_INFO_SYSTEM_FAILURE, "systemFailure"}
};
#define TS_FAILURE_INFO_SIZE (sizeof(TS_failure_info) / \
sizeof(*TS_failure_info))
/* Functions for verifying a signed TS_TST_INFO structure. */
/*-
* This function carries out the following tasks:
@@ -173,22 +102,16 @@ int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_INVALID_NULL_POINTER);
goto err;
}
/* Check for the correct content type */
if (!PKCS7_type_is_signed(token)) {
TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_WRONG_CONTENT_TYPE);
goto err;
}
/* Check if there is one and only one signer. */
sinfos = PKCS7_get_signer_info(token);
if (!sinfos || sk_PKCS7_SIGNER_INFO_num(sinfos) != 1) {
TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_THERE_MUST_BE_ONE_SIGNER);
goto err;
}
si = sk_PKCS7_SIGNER_INFO_value(sinfos, 0);
/* Check for no content: no data to verify signature. */
if (PKCS7_get_detached(token)) {
TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_NO_CONTENT);
goto err;
@@ -203,35 +126,26 @@ int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
goto err;
signer = sk_X509_value(signers, 0);
/* Now verify the certificate. */
if (!TS_verify_cert(store, certs, signer, &chain))
if (!ts_verify_cert(store, certs, signer, &chain))
goto err;
/*
* Check if the signer certificate is consistent with the ESS extension.
*/
if (!TS_check_signing_certs(si, chain))
if (!ts_check_signing_certs(si, chain))
goto err;
/* Creating the message digest. */
p7bio = PKCS7_dataInit(token, NULL);
/* We now have to 'read' from p7bio to calculate digests etc. */
while ((i = BIO_read(p7bio, buf, sizeof(buf))) > 0) ;
while ((i = BIO_read(p7bio, buf, sizeof(buf))) > 0)
continue;
/* Verifying the signature. */
j = PKCS7_signatureVerify(p7bio, token, si, signer);
if (j <= 0) {
TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_SIGNATURE_FAILURE);
goto err;
}
/* Return the signer certificate if needed. */
if (signer_out) {
*signer_out = signer;
CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
X509_up_ref(signer);
}
ret = 1;
err:
@@ -246,38 +160,46 @@ int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
* The certificate chain is returned in chain. Caller is responsible for
* freeing the vector.
*/
static int TS_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
static int ts_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
X509 *signer, STACK_OF(X509) **chain)
{
X509_STORE_CTX cert_ctx;
X509_STORE_CTX *cert_ctx = NULL;
int i;
int ret = 1;
int ret = 0;
/* chain is an out argument. */
*chain = NULL;
X509_STORE_CTX_init(&cert_ctx, store, signer, untrusted);
X509_STORE_CTX_set_purpose(&cert_ctx, X509_PURPOSE_TIMESTAMP_SIGN);
i = X509_verify_cert(&cert_ctx);
cert_ctx = X509_STORE_CTX_new();
if (cert_ctx == NULL) {
TSerr(TS_F_TS_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!X509_STORE_CTX_init(cert_ctx, store, signer, untrusted))
goto end;
X509_STORE_CTX_set_purpose(cert_ctx, X509_PURPOSE_TIMESTAMP_SIGN);
i = X509_verify_cert(cert_ctx);
if (i <= 0) {
int j = X509_STORE_CTX_get_error(&cert_ctx);
int j = X509_STORE_CTX_get_error(cert_ctx);
TSerr(TS_F_TS_VERIFY_CERT, TS_R_CERTIFICATE_VERIFY_ERROR);
ERR_add_error_data(2, "Verify error:",
X509_verify_cert_error_string(j));
ret = 0;
} else {
/* Get a copy of the certificate chain. */
*chain = X509_STORE_CTX_get1_chain(&cert_ctx);
goto err;
}
*chain = X509_STORE_CTX_get1_chain(cert_ctx);
ret = 1;
goto end;
X509_STORE_CTX_cleanup(&cert_ctx);
err:
ret = 0;
end:
X509_STORE_CTX_free(cert_ctx);
return ret;
}
static int TS_check_signing_certs(PKCS7_SIGNER_INFO *si,
static int ts_check_signing_certs(PKCS7_SIGNER_INFO *si,
STACK_OF(X509) *chain)
{
ESS_SIGNING_CERT *ss = ESS_get_signing_cert(si);
ESS_SIGNING_CERT *ss = ess_get_signing_cert(si);
STACK_OF(ESS_CERT_ID) *cert_ids = NULL;
X509 *cert;
int i = 0;
@@ -286,9 +208,8 @@ static int TS_check_signing_certs(PKCS7_SIGNER_INFO *si,
if (!ss)
goto err;
cert_ids = ss->cert_ids;
/* The signer certificate must be the first in cert_ids. */
cert = sk_X509_value(chain, 0);
if (TS_find_cert(cert_ids, cert) != 0)
if (ts_find_cert(cert_ids, cert) != 0)
goto err;
/*
@@ -296,10 +217,9 @@ static int TS_check_signing_certs(PKCS7_SIGNER_INFO *si,
* certificate ids in cert_ids.
*/
if (sk_ESS_CERT_ID_num(cert_ids) > 1) {
/* All the certificates of the chain must be in cert_ids. */
for (i = 1; i < sk_X509_num(chain); ++i) {
cert = sk_X509_value(chain, i);
if (TS_find_cert(cert_ids, cert) < 0)
if (ts_find_cert(cert_ids, cert) < 0)
goto err;
}
}
@@ -312,7 +232,7 @@ static int TS_check_signing_certs(PKCS7_SIGNER_INFO *si,
return ret;
}
static ESS_SIGNING_CERT *ESS_get_signing_cert(PKCS7_SIGNER_INFO *si)
static ESS_SIGNING_CERT *ess_get_signing_cert(PKCS7_SIGNER_INFO *si)
{
ASN1_TYPE *attr;
const unsigned char *p;
@@ -324,13 +244,16 @@ static ESS_SIGNING_CERT *ESS_get_signing_cert(PKCS7_SIGNER_INFO *si)
}
/* Returns < 0 if certificate is not found, certificate index otherwise. */
static int TS_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert)
static int ts_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert)
{
int i;
unsigned char cert_sha1[SHA_DIGEST_LENGTH];
if (!cert_ids || !cert)
return -1;
X509_digest(cert, EVP_sha1(), cert_sha1, NULL);
/* Recompute SHA1 hash of certificate if necessary (side effect). */
X509_check_purpose(cert, -1, 0);
@@ -338,13 +261,10 @@ static int TS_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert)
for (i = 0; i < sk_ESS_CERT_ID_num(cert_ids); ++i) {
ESS_CERT_ID *cid = sk_ESS_CERT_ID_value(cert_ids, i);
/* Check the SHA-1 hash first. */
if (cid->hash->length == sizeof(cert->sha1_hash)
&& !memcmp(cid->hash->data, cert->sha1_hash,
sizeof(cert->sha1_hash))) {
/* Check the issuer/serial as well if specified. */
if (cid->hash->length == SHA_DIGEST_LENGTH
&& memcmp(cid->hash->data, cert_sha1, SHA_DIGEST_LENGTH) == 0) {
ESS_ISSUER_SERIAL *is = cid->issuer_serial;
if (!is || !TS_issuer_serial_cmp(is, cert->cert_info))
if (!is || !ts_issuer_serial_cmp(is, cert))
return i;
}
}
@@ -352,21 +272,19 @@ static int TS_find_cert(STACK_OF(ESS_CERT_ID) *cert_ids, X509 *cert)
return -1;
}
static int TS_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509_CINF *cinfo)
static int ts_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509 *cert)
{
GENERAL_NAME *issuer;
if (!is || !cinfo || sk_GENERAL_NAME_num(is->issuer) != 1)
if (!is || !cert || sk_GENERAL_NAME_num(is->issuer) != 1)
return -1;
/* Check the issuer first. It must be a directory name. */
issuer = sk_GENERAL_NAME_value(is->issuer, 0);
if (issuer->type != GEN_DIRNAME
|| X509_NAME_cmp(issuer->d.dirn, cinfo->issuer))
|| X509_NAME_cmp(issuer->d.dirn, X509_get_issuer_name(cert)))
return -1;
/* Check the serial number, too. */
if (ASN1_INTEGER_cmp(is->serial, cinfo->serialNumber))
if (ASN1_INTEGER_cmp(is->serial, X509_get_serialNumber(cert)))
return -1;
return 0;
@@ -380,19 +298,16 @@ static int TS_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509_CINF *cinfo)
*/
int TS_RESP_verify_response(TS_VERIFY_CTX *ctx, TS_RESP *response)
{
PKCS7 *token = TS_RESP_get_token(response);
TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response);
PKCS7 *token = response->token;
TS_TST_INFO *tst_info = response->tst_info;
int ret = 0;
/* Check if we have a successful TS_TST_INFO object in place. */
if (!TS_check_status_info(response))
if (!ts_check_status_info(response))
goto err;
/* Check the contents of the time stamp token. */
if (!int_TS_RESP_verify_token(ctx, token, tst_info))
if (!int_ts_RESP_verify_token(ctx, token, tst_info))
goto err;
ret = 1;
err:
return ret;
}
@@ -406,7 +321,7 @@ int TS_RESP_verify_token(TS_VERIFY_CTX *ctx, PKCS7 *token)
TS_TST_INFO *tst_info = PKCS7_to_TS_TST_INFO(token);
int ret = 0;
if (tst_info) {
ret = int_TS_RESP_verify_token(ctx, token, tst_info);
ret = int_ts_RESP_verify_token(ctx, token, tst_info);
TS_TST_INFO_free(tst_info);
}
return ret;
@@ -424,66 +339,58 @@ int TS_RESP_verify_token(TS_VERIFY_CTX *ctx, PKCS7 *token)
* - Check if the TSA name matches the signer.
* - Check if the TSA name is the expected TSA.
*/
static int int_TS_RESP_verify_token(TS_VERIFY_CTX *ctx,
static int int_ts_RESP_verify_token(TS_VERIFY_CTX *ctx,
PKCS7 *token, TS_TST_INFO *tst_info)
{
X509 *signer = NULL;
GENERAL_NAME *tsa_name = TS_TST_INFO_get_tsa(tst_info);
GENERAL_NAME *tsa_name = tst_info->tsa;
X509_ALGOR *md_alg = NULL;
unsigned char *imprint = NULL;
unsigned imprint_len = 0;
int ret = 0;
int flags = ctx->flags;
/* Verify the signature. */
if ((ctx->flags & TS_VFY_SIGNATURE)
/* Some options require us to also check the signature */
if (((flags & TS_VFY_SIGNER) && tsa_name != NULL)
|| (flags & TS_VFY_TSA_NAME)) {
flags |= TS_VFY_SIGNATURE;
}
if ((flags & TS_VFY_SIGNATURE)
&& !TS_RESP_verify_signature(token, ctx->certs, ctx->store, &signer))
goto err;
/* Check version number of response. */
if ((ctx->flags & TS_VFY_VERSION)
if ((flags & TS_VFY_VERSION)
&& TS_TST_INFO_get_version(tst_info) != 1) {
TSerr(TS_F_INT_TS_RESP_VERIFY_TOKEN, TS_R_UNSUPPORTED_VERSION);
goto err;
}
/* Check policies. */
if ((ctx->flags & TS_VFY_POLICY)
&& !TS_check_policy(ctx->policy, tst_info))
if ((flags & TS_VFY_POLICY)
&& !ts_check_policy(ctx->policy, tst_info))
goto err;
/* Check message imprints. */
if ((ctx->flags & TS_VFY_IMPRINT)
&& !TS_check_imprints(ctx->md_alg, ctx->imprint, ctx->imprint_len,
if ((flags & TS_VFY_IMPRINT)
&& !ts_check_imprints(ctx->md_alg, ctx->imprint, ctx->imprint_len,
tst_info))
goto err;
/* Compute and check message imprints. */
if ((ctx->flags & TS_VFY_DATA)
&& (!TS_compute_imprint(ctx->data, tst_info,
if ((flags & TS_VFY_DATA)
&& (!ts_compute_imprint(ctx->data, tst_info,
&md_alg, &imprint, &imprint_len)
|| !TS_check_imprints(md_alg, imprint, imprint_len, tst_info)))
|| !ts_check_imprints(md_alg, imprint, imprint_len, tst_info)))
goto err;
/* Check nonces. */
if ((ctx->flags & TS_VFY_NONCE)
&& !TS_check_nonces(ctx->nonce, tst_info))
if ((flags & TS_VFY_NONCE)
&& !ts_check_nonces(ctx->nonce, tst_info))
goto err;
/* Check whether TSA name and signer certificate match. */
if ((ctx->flags & TS_VFY_SIGNER)
&& tsa_name && !TS_check_signer_name(tsa_name, signer)) {
if ((flags & TS_VFY_SIGNER)
&& tsa_name && !ts_check_signer_name(tsa_name, signer)) {
TSerr(TS_F_INT_TS_RESP_VERIFY_TOKEN, TS_R_TSA_NAME_MISMATCH);
goto err;
}
/* Check whether the TSA is the expected one. */
if ((ctx->flags & TS_VFY_TSA_NAME)
&& !TS_check_signer_name(ctx->tsa_name, signer)) {
if ((flags & TS_VFY_TSA_NAME)
&& !ts_check_signer_name(ctx->tsa_name, signer)) {
TSerr(TS_F_INT_TS_RESP_VERIFY_TOKEN, TS_R_TSA_UNTRUSTED);
goto err;
}
ret = 1;
err:
X509_free(signer);
X509_ALGOR_free(md_alg);
@@ -491,48 +398,45 @@ static int int_TS_RESP_verify_token(TS_VERIFY_CTX *ctx,
return ret;
}
static int TS_check_status_info(TS_RESP *response)
static int ts_check_status_info(TS_RESP *response)
{
TS_STATUS_INFO *info = TS_RESP_get_status_info(response);
TS_STATUS_INFO *info = response->status_info;
long status = ASN1_INTEGER_get(info->status);
const char *status_text = NULL;
char *embedded_status_text = NULL;
char failure_text[TS_STATUS_BUF_SIZE] = "";
/* Check if everything went fine. */
if (status == 0 || status == 1)
return 1;
/* There was an error, get the description in status_text. */
if (0 <= status && status < (long)TS_STATUS_TEXT_SIZE)
status_text = TS_status_text[status];
if (0 <= status && status < (long) OSSL_NELEM(ts_status_text))
status_text = ts_status_text[status];
else
status_text = "unknown code";
/* Set the embedded_status_text to the returned description. */
if (sk_ASN1_UTF8STRING_num(info->text) > 0
&& !(embedded_status_text = TS_get_status_text(info->text)))
&& (embedded_status_text = ts_get_status_text(info->text)) == NULL)
return 0;
/* Filling in failure_text with the failure information. */
/* Fill in failure_text with the failure information. */
if (info->failure_info) {
int i;
int first = 1;
for (i = 0; i < (int)TS_FAILURE_INFO_SIZE; ++i) {
for (i = 0; i < (int)OSSL_NELEM(ts_failure_info); ++i) {
if (ASN1_BIT_STRING_get_bit(info->failure_info,
TS_failure_info[i].code)) {
ts_failure_info[i].code)) {
if (!first)
strcpy(failure_text, ",");
strcat(failure_text, ",");
else
first = 0;
strcat(failure_text, TS_failure_info[i].text);
strcat(failure_text, ts_failure_info[i].text);
}
}
}
if (failure_text[0] == '\0')
strcpy(failure_text, "unspecified");
/* Making up the error string. */
TSerr(TS_F_TS_CHECK_STATUS_INFO, TS_R_NO_TIME_STAMP_TOKEN);
ERR_add_error_data(6,
"status code: ", status_text,
@@ -544,42 +448,42 @@ static int TS_check_status_info(TS_RESP *response)
return 0;
}
static char *TS_get_status_text(STACK_OF(ASN1_UTF8STRING) *text)
static char *ts_get_status_text(STACK_OF(ASN1_UTF8STRING) *text)
{
int i;
unsigned int length = 0;
int length = 0;
char *result = NULL;
char *p;
/* Determine length first. */
for (i = 0; i < sk_ASN1_UTF8STRING_num(text); ++i) {
ASN1_UTF8STRING *current = sk_ASN1_UTF8STRING_value(text, i);
if (ASN1_STRING_length(current) > TS_MAX_STATUS_LENGTH - length - 1)
return NULL;
length += ASN1_STRING_length(current);
length += 1; /* separator character */
}
/* Allocate memory (closing '\0' included). */
if (!(result = OPENSSL_malloc(length))) {
if ((result = OPENSSL_malloc(length)) == NULL) {
TSerr(TS_F_TS_GET_STATUS_TEXT, ERR_R_MALLOC_FAILURE);
return NULL;
}
/* Concatenate the descriptions. */
for (i = 0, p = result; i < sk_ASN1_UTF8STRING_num(text); ++i) {
ASN1_UTF8STRING *current = sk_ASN1_UTF8STRING_value(text, i);
length = ASN1_STRING_length(current);
if (i > 0)
*p++ = '/';
strncpy(p, (const char *)ASN1_STRING_data(current), length);
strncpy(p, (const char *)ASN1_STRING_get0_data(current), length);
p += length;
}
/* We do have space for this, too. */
*p = '\0';
return result;
}
static int TS_check_policy(ASN1_OBJECT *req_oid, TS_TST_INFO *tst_info)
static int ts_check_policy(const ASN1_OBJECT *req_oid,
const TS_TST_INFO *tst_info)
{
ASN1_OBJECT *resp_oid = TS_TST_INFO_get_policy_id(tst_info);
const ASN1_OBJECT *resp_oid = tst_info->policy_id;
if (OBJ_cmp(req_oid, resp_oid) != 0) {
TSerr(TS_F_TS_CHECK_POLICY, TS_R_POLICY_MISMATCH);
@@ -589,51 +493,53 @@ static int TS_check_policy(ASN1_OBJECT *req_oid, TS_TST_INFO *tst_info)
return 1;
}
static int TS_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
static int ts_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
X509_ALGOR **md_alg,
unsigned char **imprint, unsigned *imprint_len)
{
TS_MSG_IMPRINT *msg_imprint = TS_TST_INFO_get_msg_imprint(tst_info);
X509_ALGOR *md_alg_resp = TS_MSG_IMPRINT_get_algo(msg_imprint);
TS_MSG_IMPRINT *msg_imprint = tst_info->msg_imprint;
X509_ALGOR *md_alg_resp = msg_imprint->hash_algo;
const EVP_MD *md;
EVP_MD_CTX md_ctx;
EVP_MD_CTX *md_ctx = NULL;
unsigned char buffer[4096];
int length;
*md_alg = NULL;
*imprint = NULL;
/* Return the MD algorithm of the response. */
if (!(*md_alg = X509_ALGOR_dup(md_alg_resp)))
if ((*md_alg = X509_ALGOR_dup(md_alg_resp)) == NULL)
goto err;
/* Getting the MD object. */
if (!(md = EVP_get_digestbyobj((*md_alg)->algorithm))) {
if ((md = EVP_get_digestbyobj((*md_alg)->algorithm)) == NULL) {
TSerr(TS_F_TS_COMPUTE_IMPRINT, TS_R_UNSUPPORTED_MD_ALGORITHM);
goto err;
}
/* Compute message digest. */
length = EVP_MD_size(md);
if (length < 0)
goto err;
*imprint_len = length;
if (!(*imprint = OPENSSL_malloc(*imprint_len))) {
if ((*imprint = OPENSSL_malloc(*imprint_len)) == NULL) {
TSerr(TS_F_TS_COMPUTE_IMPRINT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_DigestInit(&md_ctx, md))
md_ctx = EVP_MD_CTX_new();
if (md_ctx == NULL) {
TSerr(TS_F_TS_COMPUTE_IMPRINT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_DigestInit(md_ctx, md))
goto err;
while ((length = BIO_read(data, buffer, sizeof(buffer))) > 0) {
if (!EVP_DigestUpdate(&md_ctx, buffer, length))
if (!EVP_DigestUpdate(md_ctx, buffer, length))
goto err;
}
if (!EVP_DigestFinal(&md_ctx, *imprint, NULL))
if (!EVP_DigestFinal(md_ctx, *imprint, NULL))
goto err;
EVP_MD_CTX_free(md_ctx);
return 1;
err:
EVP_MD_CTX_free(md_ctx);
X509_ALGOR_free(*md_alg);
OPENSSL_free(*imprint);
*imprint_len = 0;
@@ -641,17 +547,15 @@ static int TS_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
return 0;
}
static int TS_check_imprints(X509_ALGOR *algor_a,
unsigned char *imprint_a, unsigned len_a,
static int ts_check_imprints(X509_ALGOR *algor_a,
const unsigned char *imprint_a, unsigned len_a,
TS_TST_INFO *tst_info)
{
TS_MSG_IMPRINT *b = TS_TST_INFO_get_msg_imprint(tst_info);
X509_ALGOR *algor_b = TS_MSG_IMPRINT_get_algo(b);
TS_MSG_IMPRINT *b = tst_info->msg_imprint;
X509_ALGOR *algor_b = b->hash_algo;
int ret = 0;
/* algor_a is optional. */
if (algor_a) {
/* Compare algorithm OIDs. */
if (OBJ_cmp(algor_a->algorithm, algor_b->algorithm))
goto err;
@@ -663,20 +567,18 @@ static int TS_check_imprints(X509_ALGOR *algor_a,
goto err;
}
/* Compare octet strings. */
ret = len_a == (unsigned)ASN1_STRING_length(b->hashed_msg) &&
memcmp(imprint_a, ASN1_STRING_data(b->hashed_msg), len_a) == 0;
memcmp(imprint_a, ASN1_STRING_get0_data(b->hashed_msg), len_a) == 0;
err:
if (!ret)
TSerr(TS_F_TS_CHECK_IMPRINTS, TS_R_MESSAGE_IMPRINT_MISMATCH);
return ret;
}
static int TS_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info)
static int ts_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info)
{
const ASN1_INTEGER *b = TS_TST_INFO_get_nonce(tst_info);
const ASN1_INTEGER *b = tst_info->nonce;
/* Error if nonce is missing. */
if (!b) {
TSerr(TS_F_TS_CHECK_NONCES, TS_R_NONCE_NOT_RETURNED);
return 0;
@@ -695,37 +597,34 @@ static int TS_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info)
* Check if the specified TSA name matches either the subject or one of the
* subject alternative names of the TSA certificate.
*/
static int TS_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer)
static int ts_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer)
{
STACK_OF(GENERAL_NAME) *gen_names = NULL;
int idx = -1;
int found = 0;
/* Check the subject name first. */
if (tsa_name->type == GEN_DIRNAME
&& X509_name_cmp(tsa_name->d.dirn, signer->cert_info->subject) == 0)
&& X509_name_cmp(tsa_name->d.dirn, X509_get_subject_name(signer)) == 0)
return 1;
/* Check all the alternative names. */
gen_names = X509_get_ext_d2i(signer, NID_subject_alt_name, NULL, &idx);
while (gen_names != NULL
&& !(found = TS_find_name(gen_names, tsa_name) >= 0)) {
while (gen_names != NULL) {
found = ts_find_name(gen_names, tsa_name) >= 0;
if (found)
break;
/*
* Get the next subject alternative name, although there should be no
* more than one.
*/
GENERAL_NAMES_free(gen_names);
gen_names = X509_get_ext_d2i(signer, NID_subject_alt_name,
NULL, &idx);
gen_names = X509_get_ext_d2i(signer, NID_subject_alt_name, NULL, &idx);
}
if (gen_names)
GENERAL_NAMES_free(gen_names);
GENERAL_NAMES_free(gen_names);
return found;
}
/* Returns 1 if name is in gen_names, 0 otherwise. */
static int TS_find_name(STACK_OF(GENERAL_NAME) *gen_names, GENERAL_NAME *name)
static int ts_find_name(STACK_OF(GENERAL_NAME) *gen_names, GENERAL_NAME *name)
{
int i, found;
for (i = 0, found = 0; !found && i < sk_GENERAL_NAME_num(gen_names); ++i) {