diff options
Diffstat (limited to 'thirdparty/openssl/crypto/ts/ts_rsp_sign.c')
| -rw-r--r-- | thirdparty/openssl/crypto/ts/ts_rsp_sign.c | 1020 |
1 files changed, 0 insertions, 1020 deletions
diff --git a/thirdparty/openssl/crypto/ts/ts_rsp_sign.c b/thirdparty/openssl/crypto/ts/ts_rsp_sign.c deleted file mode 100644 index db6ce3241f..0000000000 --- a/thirdparty/openssl/crypto/ts/ts_rsp_sign.c +++ /dev/null @@ -1,1020 +0,0 @@ -/* crypto/ts/ts_resp_sign.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). - * - */ - -#include "cryptlib.h" - -#if defined(OPENSSL_SYS_UNIX) -# include <sys/time.h> -#endif - -#include <openssl/objects.h> -#include <openssl/ts.h> -#include <openssl/pkcs7.h> - -/* Private function declarations. */ - -static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *); -static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec); -static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *); - -static void TS_RESP_CTX_init(TS_RESP_CTX *ctx); -static void TS_RESP_CTX_cleanup(TS_RESP_CTX *ctx); -static int TS_RESP_check_request(TS_RESP_CTX *ctx); -static ASN1_OBJECT *TS_RESP_get_policy(TS_RESP_CTX *ctx); -static TS_TST_INFO *TS_RESP_create_tst_info(TS_RESP_CTX *ctx, - ASN1_OBJECT *policy); -static int TS_RESP_process_extensions(TS_RESP_CTX *ctx); -static int TS_RESP_sign(TS_RESP_CTX *ctx); - -static ESS_SIGNING_CERT *ESS_SIGNING_CERT_new_init(X509 *signcert, - STACK_OF(X509) *certs); -static ESS_CERT_ID *ESS_CERT_ID_new_init(X509 *cert, int issuer_needed); -static int TS_TST_INFO_content_new(PKCS7 *p7); -static int ESS_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc); - -static ASN1_GENERALIZEDTIME -*TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *, long, long, - unsigned); - -/* Default callbacks for response generation. */ - -static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *ctx, void *data) -{ - ASN1_INTEGER *serial = ASN1_INTEGER_new(); - if (!serial) - goto err; - if (!ASN1_INTEGER_set(serial, 1)) - goto err; - return serial; - err: - TSerr(TS_F_DEF_SERIAL_CB, ERR_R_MALLOC_FAILURE); - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Error during serial number generation."); - return NULL; -} - -#if defined(OPENSSL_SYS_UNIX) - -/* Use the gettimeofday function call. */ -static int def_time_cb(struct TS_resp_ctx *ctx, void *data, - long *sec, long *usec) -{ - struct timeval tv; - if (gettimeofday(&tv, NULL) != 0) { - TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR); - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Time is not available."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE); - return 0; - } - /* Return time to caller. */ - *sec = tv.tv_sec; - *usec = tv.tv_usec; - - return 1; -} - -#else - -/* Use the time function call that provides only seconds precision. */ -static int def_time_cb(struct TS_resp_ctx *ctx, void *data, - long *sec, long *usec) -{ - time_t t; - if (time(&t) == (time_t)-1) { - TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR); - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Time is not available."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE); - return 0; - } - /* Return time to caller, only second precision. */ - *sec = (long)t; - *usec = 0; - - return 1; -} - -#endif - -static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext, - void *data) -{ - /* No extensions are processed here. */ - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Unsupported extension."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION); - return 0; -} - -/* TS_RESP_CTX management functions. */ - -TS_RESP_CTX *TS_RESP_CTX_new() -{ - TS_RESP_CTX *ctx; - - if (!(ctx = (TS_RESP_CTX *)OPENSSL_malloc(sizeof(TS_RESP_CTX)))) { - TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE); - return NULL; - } - memset(ctx, 0, sizeof(TS_RESP_CTX)); - - /* Setting default callbacks. */ - ctx->serial_cb = def_serial_cb; - ctx->time_cb = def_time_cb; - ctx->extension_cb = def_extension_cb; - - return ctx; -} - -void TS_RESP_CTX_free(TS_RESP_CTX *ctx) -{ - if (!ctx) - return; - - X509_free(ctx->signer_cert); - EVP_PKEY_free(ctx->signer_key); - sk_X509_pop_free(ctx->certs, X509_free); - sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free); - ASN1_OBJECT_free(ctx->default_policy); - sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */ - ASN1_INTEGER_free(ctx->seconds); - ASN1_INTEGER_free(ctx->millis); - ASN1_INTEGER_free(ctx->micros); - OPENSSL_free(ctx); -} - -int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer) -{ - if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) { - TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT, - TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE); - return 0; - } - if (ctx->signer_cert) - X509_free(ctx->signer_cert); - ctx->signer_cert = signer; - CRYPTO_add(&ctx->signer_cert->references, +1, CRYPTO_LOCK_X509); - return 1; -} - -int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key) -{ - if (ctx->signer_key) - EVP_PKEY_free(ctx->signer_key); - ctx->signer_key = key; - CRYPTO_add(&ctx->signer_key->references, +1, CRYPTO_LOCK_EVP_PKEY); - - return 1; -} - -int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, ASN1_OBJECT *def_policy) -{ - if (ctx->default_policy) - ASN1_OBJECT_free(ctx->default_policy); - if (!(ctx->default_policy = OBJ_dup(def_policy))) - goto err; - return 1; - err: - TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE); - return 0; -} - -int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs) -{ - - if (ctx->certs) { - sk_X509_pop_free(ctx->certs, X509_free); - ctx->certs = NULL; - } - if (!certs) - return 1; - if (!(ctx->certs = X509_chain_up_ref(certs))) { - TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE); - return 0; - } - - return 1; -} - -int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, ASN1_OBJECT *policy) -{ - ASN1_OBJECT *copy = NULL; - - /* Create new policy stack if necessary. */ - if (!ctx->policies && !(ctx->policies = sk_ASN1_OBJECT_new_null())) - goto err; - if (!(copy = OBJ_dup(policy))) - goto err; - if (!sk_ASN1_OBJECT_push(ctx->policies, copy)) - goto err; - - return 1; - err: - TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE); - ASN1_OBJECT_free(copy); - return 0; -} - -int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md) -{ - /* Create new md stack if necessary. */ - if (!ctx->mds && !(ctx->mds = sk_EVP_MD_new_null())) - goto err; - /* Add the shared md, no copy needed. */ - if (!sk_EVP_MD_push(ctx->mds, (EVP_MD *)md)) - goto err; - - return 1; - err: - TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE); - return 0; -} - -#define TS_RESP_CTX_accuracy_free(ctx) \ - ASN1_INTEGER_free(ctx->seconds); \ - ctx->seconds = NULL; \ - ASN1_INTEGER_free(ctx->millis); \ - ctx->millis = NULL; \ - ASN1_INTEGER_free(ctx->micros); \ - ctx->micros = NULL; - -int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx, - int secs, int millis, int micros) -{ - - TS_RESP_CTX_accuracy_free(ctx); - if (secs && (!(ctx->seconds = ASN1_INTEGER_new()) - || !ASN1_INTEGER_set(ctx->seconds, secs))) - goto err; - if (millis && (!(ctx->millis = ASN1_INTEGER_new()) - || !ASN1_INTEGER_set(ctx->millis, millis))) - goto err; - if (micros && (!(ctx->micros = ASN1_INTEGER_new()) - || !ASN1_INTEGER_set(ctx->micros, micros))) - goto err; - - return 1; - err: - TS_RESP_CTX_accuracy_free(ctx); - TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE); - return 0; -} - -void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags) -{ - ctx->flags |= flags; -} - -void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data) -{ - ctx->serial_cb = cb; - ctx->serial_cb_data = data; -} - -void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data) -{ - ctx->time_cb = cb; - ctx->time_cb_data = data; -} - -void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx, - TS_extension_cb cb, void *data) -{ - ctx->extension_cb = cb; - ctx->extension_cb_data = data; -} - -int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx, - int status, const char *text) -{ - TS_STATUS_INFO *si = NULL; - ASN1_UTF8STRING *utf8_text = NULL; - int ret = 0; - - if (!(si = TS_STATUS_INFO_new())) - goto err; - if (!ASN1_INTEGER_set(si->status, status)) - goto err; - if (text) { - if (!(utf8_text = ASN1_UTF8STRING_new()) - || !ASN1_STRING_set(utf8_text, text, strlen(text))) - goto err; - if (!si->text && !(si->text = sk_ASN1_UTF8STRING_new_null())) - goto err; - if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text)) - goto err; - utf8_text = NULL; /* Ownership is lost. */ - } - if (!TS_RESP_set_status_info(ctx->response, si)) - goto err; - ret = 1; - err: - if (!ret) - TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE); - TS_STATUS_INFO_free(si); - ASN1_UTF8STRING_free(utf8_text); - return ret; -} - -int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx, - int status, const char *text) -{ - int ret = 1; - TS_STATUS_INFO *si = TS_RESP_get_status_info(ctx->response); - - if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) { - /* Status has not been set, set it now. */ - ret = TS_RESP_CTX_set_status_info(ctx, status, text); - } - return ret; -} - -int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure) -{ - TS_STATUS_INFO *si = TS_RESP_get_status_info(ctx->response); - if (!si->failure_info && !(si->failure_info = ASN1_BIT_STRING_new())) - goto err; - if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1)) - goto err; - return 1; - err: - TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE); - return 0; -} - -TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx) -{ - return ctx->request; -} - -TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx) -{ - return ctx->tst_info; -} - -int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx, - unsigned precision) -{ - if (precision > TS_MAX_CLOCK_PRECISION_DIGITS) - return 0; - ctx->clock_precision_digits = precision; - return 1; -} - -/* Main entry method of the response generation. */ -TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio) -{ - ASN1_OBJECT *policy; - TS_RESP *response; - int result = 0; - - TS_RESP_CTX_init(ctx); - - /* Creating the response object. */ - if (!(ctx->response = TS_RESP_new())) { - TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE); - goto end; - } - - /* Parsing DER request. */ - if (!(ctx->request = d2i_TS_REQ_bio(req_bio, NULL))) { - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Bad request format or " "system error."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT); - goto end; - } - - /* Setting default status info. */ - if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL)) - goto end; - - /* Checking the request format. */ - if (!TS_RESP_check_request(ctx)) - goto end; - - /* Checking acceptable policies. */ - if (!(policy = TS_RESP_get_policy(ctx))) - goto end; - - /* Creating the TS_TST_INFO object. */ - if (!(ctx->tst_info = TS_RESP_create_tst_info(ctx, policy))) - goto end; - - /* Processing extensions. */ - if (!TS_RESP_process_extensions(ctx)) - goto end; - - /* Generating the signature. */ - if (!TS_RESP_sign(ctx)) - goto end; - - /* Everything was successful. */ - result = 1; - end: - if (!result) { - TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR); - if (ctx->response != NULL) { - if (TS_RESP_CTX_set_status_info_cond(ctx, - TS_STATUS_REJECTION, - "Error during response " - "generation.") == 0) { - TS_RESP_free(ctx->response); - ctx->response = NULL; - } - } - } - response = ctx->response; - ctx->response = NULL; /* Ownership will be returned to caller. */ - TS_RESP_CTX_cleanup(ctx); - return response; -} - -/* Initializes the variable part of the context. */ -static void TS_RESP_CTX_init(TS_RESP_CTX *ctx) -{ - ctx->request = NULL; - ctx->response = NULL; - ctx->tst_info = NULL; -} - -/* Cleans up the variable part of the context. */ -static void TS_RESP_CTX_cleanup(TS_RESP_CTX *ctx) -{ - TS_REQ_free(ctx->request); - ctx->request = NULL; - TS_RESP_free(ctx->response); - ctx->response = NULL; - TS_TST_INFO_free(ctx->tst_info); - ctx->tst_info = NULL; -} - -/* Checks the format and content of the request. */ -static int TS_RESP_check_request(TS_RESP_CTX *ctx) -{ - TS_REQ *request = ctx->request; - TS_MSG_IMPRINT *msg_imprint; - X509_ALGOR *md_alg; - int md_alg_id; - const ASN1_OCTET_STRING *digest; - EVP_MD *md = NULL; - int i; - - /* Checking request version. */ - if (TS_REQ_get_version(request) != 1) { - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Bad request version."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST); - return 0; - } - - /* Checking message digest algorithm. */ - msg_imprint = TS_REQ_get_msg_imprint(request); - md_alg = TS_MSG_IMPRINT_get_algo(msg_imprint); - md_alg_id = OBJ_obj2nid(md_alg->algorithm); - for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) { - EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i); - if (md_alg_id == EVP_MD_type(current_md)) - md = current_md; - } - if (!md) { - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Message digest algorithm is " - "not supported."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG); - return 0; - } - - /* No message digest takes parameter. */ - if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) { - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Superfluous message digest " - "parameter."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG); - return 0; - } - /* Checking message digest size. */ - digest = TS_MSG_IMPRINT_get_msg(msg_imprint); - if (digest->length != EVP_MD_size(md)) { - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Bad message digest."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT); - return 0; - } - - return 1; -} - -/* Returns the TSA policy based on the requested and acceptable policies. */ -static ASN1_OBJECT *TS_RESP_get_policy(TS_RESP_CTX *ctx) -{ - ASN1_OBJECT *requested = TS_REQ_get_policy_id(ctx->request); - ASN1_OBJECT *policy = NULL; - int i; - - if (ctx->default_policy == NULL) { - TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER); - return NULL; - } - /* - * Return the default policy if none is requested or the default is - * requested. - */ - if (!requested || !OBJ_cmp(requested, ctx->default_policy)) - policy = ctx->default_policy; - - /* Check if the policy is acceptable. */ - for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) { - ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i); - if (!OBJ_cmp(requested, current)) - policy = current; - } - if (!policy) { - TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY); - TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, - "Requested policy is not " "supported."); - TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY); - } - return policy; -} - -/* Creates the TS_TST_INFO object based on the settings of the context. */ -static TS_TST_INFO *TS_RESP_create_tst_info(TS_RESP_CTX *ctx, - ASN1_OBJECT *policy) -{ - int result = 0; - TS_TST_INFO *tst_info = NULL; - ASN1_INTEGER *serial = NULL; - ASN1_GENERALIZEDTIME *asn1_time = NULL; - long sec, usec; - TS_ACCURACY *accuracy = NULL; - const ASN1_INTEGER *nonce; - GENERAL_NAME *tsa_name = NULL; - - if (!(tst_info = TS_TST_INFO_new())) - goto end; - if (!TS_TST_INFO_set_version(tst_info, 1)) - goto end; - if (!TS_TST_INFO_set_policy_id(tst_info, policy)) - goto end; - if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint)) - goto end; - if (!(serial = (*ctx->serial_cb) (ctx, ctx->serial_cb_data)) - || !TS_TST_INFO_set_serial(tst_info, serial)) - goto end; - if (!(*ctx->time_cb) (ctx, ctx->time_cb_data, &sec, &usec) - || !(asn1_time = TS_RESP_set_genTime_with_precision(NULL, - sec, usec, - ctx->clock_precision_digits)) - || !TS_TST_INFO_set_time(tst_info, asn1_time)) - goto end; - - /* Setting accuracy if needed. */ - if ((ctx->seconds || ctx->millis || ctx->micros) - && !(accuracy = TS_ACCURACY_new())) - goto end; - - if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds)) - goto end; - if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis)) - goto end; - if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros)) - goto end; - if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy)) - goto end; - - /* Setting ordering. */ - if ((ctx->flags & TS_ORDERING) - && !TS_TST_INFO_set_ordering(tst_info, 1)) - goto end; - - /* Setting nonce if needed. */ - if ((nonce = TS_REQ_get_nonce(ctx->request)) != NULL - && !TS_TST_INFO_set_nonce(tst_info, nonce)) - goto end; - - /* Setting TSA name to subject of signer certificate. */ - if (ctx->flags & TS_TSA_NAME) { - if (!(tsa_name = GENERAL_NAME_new())) - goto end; - tsa_name->type = GEN_DIRNAME; - tsa_name->d.dirn = - X509_NAME_dup(ctx->signer_cert->cert_info->subject); - if (!tsa_name->d.dirn) - goto end; - if (!TS_TST_INFO_set_tsa(tst_info, tsa_name)) - goto end; - } - - result = 1; - end: - if (!result) { - TS_TST_INFO_free(tst_info); - tst_info = NULL; - TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR); - TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION, - "Error during TSTInfo " - "generation."); - } - GENERAL_NAME_free(tsa_name); - TS_ACCURACY_free(accuracy); - ASN1_GENERALIZEDTIME_free(asn1_time); - ASN1_INTEGER_free(serial); - - return tst_info; -} - -/* Processing the extensions of the request. */ -static int TS_RESP_process_extensions(TS_RESP_CTX *ctx) -{ - STACK_OF(X509_EXTENSION) *exts = TS_REQ_get_exts(ctx->request); - int i; - int ok = 1; - - for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) { - X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); - /* - * XXXXX The last argument was previously (void *)ctx->extension_cb, - * but ISO C doesn't permit converting a function pointer to void *. - * For lack of better information, I'm placing a NULL there instead. - * The callback can pick its own address out from the ctx anyway... - */ - ok = (*ctx->extension_cb) (ctx, ext, NULL); - } - - return ok; -} - -/* Functions for signing the TS_TST_INFO structure of the context. */ -static int TS_RESP_sign(TS_RESP_CTX *ctx) -{ - int ret = 0; - PKCS7 *p7 = NULL; - PKCS7_SIGNER_INFO *si; - STACK_OF(X509) *certs; /* Certificates to include in sc. */ - ESS_SIGNING_CERT *sc = NULL; - ASN1_OBJECT *oid; - BIO *p7bio = NULL; - int i; - - /* Check if signcert and pkey match. */ - if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE); - goto err; - } - - /* Create a new PKCS7 signed object. */ - if (!(p7 = PKCS7_new())) { - TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE); - goto err; - } - if (!PKCS7_set_type(p7, NID_pkcs7_signed)) - goto err; - - /* Force SignedData version to be 3 instead of the default 1. */ - if (!ASN1_INTEGER_set(p7->d.sign->version, 3)) - goto err; - - /* Add signer certificate and optional certificate chain. */ - if (TS_REQ_get_cert_req(ctx->request)) { - PKCS7_add_certificate(p7, ctx->signer_cert); - if (ctx->certs) { - for (i = 0; i < sk_X509_num(ctx->certs); ++i) { - X509 *cert = sk_X509_value(ctx->certs, i); - PKCS7_add_certificate(p7, cert); - } - } - } - - /* Add a new signer info. */ - if (!(si = PKCS7_add_signature(p7, ctx->signer_cert, - ctx->signer_key, EVP_sha1()))) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR); - goto err; - } - - /* Add content type signed attribute to the signer info. */ - oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo); - if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType, - V_ASN1_OBJECT, oid)) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR); - goto err; - } - - /* - * Create the ESS SigningCertificate attribute which contains the signer - * certificate id and optionally the certificate chain. - */ - certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL; - if (!(sc = ESS_SIGNING_CERT_new_init(ctx->signer_cert, certs))) - goto err; - - /* Add SigningCertificate signed attribute to the signer info. */ - if (!ESS_add_signing_cert(si, sc)) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR); - goto err; - } - - /* Add a new empty NID_id_smime_ct_TSTInfo encapsulated content. */ - if (!TS_TST_INFO_content_new(p7)) - goto err; - - /* Add the DER encoded tst_info to the PKCS7 structure. */ - if (!(p7bio = PKCS7_dataInit(p7, NULL))) { - TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE); - goto err; - } - - /* Convert tst_info to DER. */ - if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN); - goto err; - } - - /* Create the signature and add it to the signer info. */ - if (!PKCS7_dataFinal(p7, p7bio)) { - TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN); - goto err; - } - - /* Set new PKCS7 and TST_INFO objects. */ - TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info); - p7 = NULL; /* Ownership is lost. */ - ctx->tst_info = NULL; /* Ownership is lost. */ - - ret = 1; - err: - if (!ret) - TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION, - "Error during signature " - "generation."); - BIO_free_all(p7bio); - ESS_SIGNING_CERT_free(sc); - PKCS7_free(p7); - return ret; -} - -static ESS_SIGNING_CERT *ESS_SIGNING_CERT_new_init(X509 *signcert, - STACK_OF(X509) *certs) -{ - ESS_CERT_ID *cid; - ESS_SIGNING_CERT *sc = NULL; - int i; - - /* Creating the ESS_CERT_ID stack. */ - if (!(sc = ESS_SIGNING_CERT_new())) - goto err; - if (!sc->cert_ids && !(sc->cert_ids = sk_ESS_CERT_ID_new_null())) - goto err; - - /* Adding the signing certificate id. */ - if (!(cid = ESS_CERT_ID_new_init(signcert, 0)) - || !sk_ESS_CERT_ID_push(sc->cert_ids, cid)) - goto err; - /* Adding the certificate chain ids. */ - for (i = 0; i < sk_X509_num(certs); ++i) { - X509 *cert = sk_X509_value(certs, i); - if (!(cid = ESS_CERT_ID_new_init(cert, 1)) - || !sk_ESS_CERT_ID_push(sc->cert_ids, cid)) - goto err; - } - - return sc; - err: - ESS_SIGNING_CERT_free(sc); - TSerr(TS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE); - return NULL; -} - -static ESS_CERT_ID *ESS_CERT_ID_new_init(X509 *cert, int issuer_needed) -{ - ESS_CERT_ID *cid = NULL; - GENERAL_NAME *name = NULL; - - /* Recompute SHA1 hash of certificate if necessary (side effect). */ - X509_check_purpose(cert, -1, 0); - - if (!(cid = ESS_CERT_ID_new())) - goto err; - if (!ASN1_OCTET_STRING_set(cid->hash, cert->sha1_hash, - sizeof(cert->sha1_hash))) - goto err; - - /* Setting the issuer/serial if requested. */ - if (issuer_needed) { - /* Creating issuer/serial structure. */ - if (!cid->issuer_serial - && !(cid->issuer_serial = ESS_ISSUER_SERIAL_new())) - goto err; - /* Creating general name from the certificate issuer. */ - if (!(name = GENERAL_NAME_new())) - goto err; - name->type = GEN_DIRNAME; - if (!(name->d.dirn = X509_NAME_dup(cert->cert_info->issuer))) - goto err; - if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name)) - goto err; - name = NULL; /* Ownership is lost. */ - /* Setting the serial number. */ - ASN1_INTEGER_free(cid->issuer_serial->serial); - if (!(cid->issuer_serial->serial = - ASN1_INTEGER_dup(cert->cert_info->serialNumber))) - goto err; - } - - return cid; - err: - GENERAL_NAME_free(name); - ESS_CERT_ID_free(cid); - TSerr(TS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE); - return NULL; -} - -static int TS_TST_INFO_content_new(PKCS7 *p7) -{ - PKCS7 *ret = NULL; - ASN1_OCTET_STRING *octet_string = NULL; - - /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */ - if (!(ret = PKCS7_new())) - goto err; - if (!(ret->d.other = ASN1_TYPE_new())) - goto err; - ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo); - if (!(octet_string = ASN1_OCTET_STRING_new())) - goto err; - ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string); - octet_string = NULL; - - /* Add encapsulated content to signed PKCS7 structure. */ - if (!PKCS7_set_content(p7, ret)) - goto err; - - return 1; - err: - ASN1_OCTET_STRING_free(octet_string); - PKCS7_free(ret); - return 0; -} - -static int ESS_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc) -{ - ASN1_STRING *seq = NULL; - unsigned char *p, *pp = NULL; - int len; - - len = i2d_ESS_SIGNING_CERT(sc, NULL); - if (!(pp = (unsigned char *)OPENSSL_malloc(len))) { - TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE); - goto err; - } - p = pp; - i2d_ESS_SIGNING_CERT(sc, &p); - if (!(seq = ASN1_STRING_new()) || !ASN1_STRING_set(seq, pp, len)) { - TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE); - goto err; - } - OPENSSL_free(pp); - pp = NULL; - return PKCS7_add_signed_attribute(si, - NID_id_smime_aa_signingCertificate, - V_ASN1_SEQUENCE, seq); - err: - ASN1_STRING_free(seq); - OPENSSL_free(pp); - - return 0; -} - -static ASN1_GENERALIZEDTIME -*TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *asn1_time, - long sec, long usec, unsigned precision) -{ - time_t time_sec = (time_t)sec; - struct tm *tm = NULL; - char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS]; - char *p = genTime_str; - char *p_end = genTime_str + sizeof(genTime_str); - - if (precision > TS_MAX_CLOCK_PRECISION_DIGITS) - goto err; - - if (!(tm = gmtime(&time_sec))) - goto err; - - /* - * Put "genTime_str" in GeneralizedTime format. We work around the - * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST - * NOT include fractional seconds") and OpenSSL related functions to - * meet the rfc3161 requirement: "GeneralizedTime syntax can include - * fraction-of-second details". - */ - p += BIO_snprintf(p, p_end - p, - "%04d%02d%02d%02d%02d%02d", - tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, - tm->tm_hour, tm->tm_min, tm->tm_sec); - if (precision > 0) { - /* Add fraction of seconds (leave space for dot and null). */ - BIO_snprintf(p, 2 + precision, ".%06ld", usec); - /* - * We cannot use the snprintf return value, because it might have - * been truncated. - */ - p += strlen(p); - - /* - * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the - * following restrictions for a DER-encoding, which OpenSSL - * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't - * support: "The encoding MUST terminate with a "Z" (which means - * "Zulu" time). The decimal point element, if present, MUST be the - * point option ".". The fractional-seconds elements, if present, - * MUST omit all trailing 0's; if the elements correspond to 0, they - * MUST be wholly omitted, and the decimal point element also MUST be - * omitted." - */ - /* - * Remove trailing zeros. The dot guarantees the exit condition of - * this loop even if all the digits are zero. - */ - while (*--p == '0') - /* - * empty - */ ; - /* p points to either the dot or the last non-zero digit. */ - if (*p != '.') - ++p; - } - /* Add the trailing Z and the terminating null. */ - *p++ = 'Z'; - *p++ = '\0'; - - /* Now call OpenSSL to check and set our genTime value */ - if (!asn1_time && !(asn1_time = M_ASN1_GENERALIZEDTIME_new())) - goto err; - if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) { - ASN1_GENERALIZEDTIME_free(asn1_time); - goto err; - } - - return asn1_time; - err: - TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME); - return NULL; -} |