/*
- * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (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 "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/ts.h>
#include <openssl/pkcs7.h>
-#include "ts_lcl.h"
+#include "internal/cryptlib.h"
+#include "internal/sizes.h"
+#include "crypto/ess.h"
+#include "ts_local.h"
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,
- 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 *cert);
+static int ts_check_signing_certs(const PKCS7_SIGNER_INFO *si,
+ const STACK_OF(X509) *chain);
+
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_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,
+ 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);
{
STACK_OF(PKCS7_SIGNER_INFO) *sinfos = NULL;
PKCS7_SIGNER_INFO *si;
+ STACK_OF(X509) *untrusted = NULL;
STACK_OF(X509) *signers = NULL;
X509 *signer;
STACK_OF(X509) *chain = NULL;
/* Some sanity checks first. */
if (!token) {
- TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_INVALID_NULL_POINTER);
+ ERR_raise(ERR_LIB_TS, TS_R_INVALID_NULL_POINTER);
goto err;
}
if (!PKCS7_type_is_signed(token)) {
- TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_WRONG_CONTENT_TYPE);
+ ERR_raise(ERR_LIB_TS, TS_R_WRONG_CONTENT_TYPE);
goto err;
}
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);
+ ERR_raise(ERR_LIB_TS, TS_R_THERE_MUST_BE_ONE_SIGNER);
goto err;
}
si = sk_PKCS7_SIGNER_INFO_value(sinfos, 0);
if (PKCS7_get_detached(token)) {
- TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_NO_CONTENT);
+ ERR_raise(ERR_LIB_TS, TS_R_NO_CONTENT);
goto err;
}
goto err;
signer = sk_X509_value(signers, 0);
- if (!ts_verify_cert(store, certs, signer, &chain))
+ untrusted = sk_X509_new_reserve(NULL, sk_X509_num(certs)
+ + sk_X509_num(token->d.sign->cert));
+ if (untrusted == NULL
+ || !X509_add_certs(untrusted, certs, 0)
+ || !X509_add_certs(untrusted, token->d.sign->cert, 0))
+ goto err;
+ if (!ts_verify_cert(store, untrusted, signer, &chain))
goto err;
if (!ts_check_signing_certs(si, chain))
goto err;
j = PKCS7_signatureVerify(p7bio, token, si, signer);
if (j <= 0) {
- TSerr(TS_F_TS_RESP_VERIFY_SIGNATURE, TS_R_SIGNATURE_FAILURE);
+ ERR_raise(ERR_LIB_TS, TS_R_SIGNATURE_FAILURE);
goto err;
}
err:
BIO_free_all(p7bio);
- sk_X509_pop_free(chain, X509_free);
+ sk_X509_free(untrusted);
+ OSSL_STACK_OF_X509_free(chain);
sk_X509_free(signers);
return ret;
*chain = NULL;
cert_ctx = X509_STORE_CTX_new();
if (cert_ctx == NULL) {
- TSerr(TS_F_TS_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_TS, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!X509_STORE_CTX_init(cert_ctx, store, signer, untrusted))
i = X509_verify_cert(cert_ctx);
if (i <= 0) {
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));
+ ERR_raise_data(ERR_LIB_TS, TS_R_CERTIFICATE_VERIFY_ERROR,
+ "Verify error:%s", X509_verify_cert_error_string(j));
goto err;
}
*chain = X509_STORE_CTX_get1_chain(cert_ctx);
return ret;
}
-static int ts_check_signing_certs(PKCS7_SIGNER_INFO *si,
- STACK_OF(X509) *chain)
-{
- ESS_SIGNING_CERT *ss = ess_get_signing_cert(si);
- STACK_OF(ESS_CERT_ID) *cert_ids = NULL;
- X509 *cert;
- int i = 0;
- int ret = 0;
-
- if (!ss)
- goto err;
- cert_ids = ss->cert_ids;
- cert = sk_X509_value(chain, 0);
- if (ts_find_cert(cert_ids, cert) != 0)
- goto err;
-
- /*
- * Check the other certificates of the chain if there are more than one
- * certificate ids in cert_ids.
- */
- if (sk_ESS_CERT_ID_num(cert_ids) > 1) {
- for (i = 1; i < sk_X509_num(chain); ++i) {
- cert = sk_X509_value(chain, i);
- if (ts_find_cert(cert_ids, cert) < 0)
- goto err;
- }
- }
- ret = 1;
- err:
- if (!ret)
- TSerr(TS_F_TS_CHECK_SIGNING_CERTS,
- TS_R_ESS_SIGNING_CERTIFICATE_ERROR);
- ESS_SIGNING_CERT_free(ss);
- return ret;
-}
-
-static ESS_SIGNING_CERT *ess_get_signing_cert(PKCS7_SIGNER_INFO *si)
+static ESS_SIGNING_CERT *ossl_ess_get_signing_cert(const PKCS7_SIGNER_INFO *si)
{
ASN1_TYPE *attr;
const unsigned char *p;
+
attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificate);
- if (!attr)
+ if (attr == NULL)
return NULL;
p = attr->value.sequence->data;
return d2i_ESS_SIGNING_CERT(NULL, &p, attr->value.sequence->length);
}
-/* 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
+ESS_SIGNING_CERT_V2 *ossl_ess_get_signing_cert_v2(const PKCS7_SIGNER_INFO *si)
{
- 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);
-
- /* Look for cert in the cert_ids vector. */
- for (i = 0; i < sk_ESS_CERT_ID_num(cert_ids); ++i) {
- ESS_CERT_ID *cid = sk_ESS_CERT_ID_value(cert_ids, i);
-
- 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))
- return i;
- }
- }
+ ASN1_TYPE *attr;
+ const unsigned char *p;
- return -1;
+ attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificateV2);
+ if (attr == NULL)
+ return NULL;
+ p = attr->value.sequence->data;
+ return d2i_ESS_SIGNING_CERT_V2(NULL, &p, attr->value.sequence->length);
}
-static int ts_issuer_serial_cmp(ESS_ISSUER_SERIAL *is, X509 *cert)
+static int ts_check_signing_certs(const PKCS7_SIGNER_INFO *si,
+ const STACK_OF(X509) *chain)
{
- GENERAL_NAME *issuer;
-
- if (!is || !cert || sk_GENERAL_NAME_num(is->issuer) != 1)
- return -1;
-
- issuer = sk_GENERAL_NAME_value(is->issuer, 0);
- if (issuer->type != GEN_DIRNAME
- || X509_NAME_cmp(issuer->d.dirn, X509_get_issuer_name(cert)))
- return -1;
+ ESS_SIGNING_CERT *ss = ossl_ess_get_signing_cert(si);
+ ESS_SIGNING_CERT_V2 *ssv2 = ossl_ess_get_signing_cert_v2(si);
+ int ret = OSSL_ESS_check_signing_certs(ss, ssv2, chain, 1) > 0;
- if (ASN1_INTEGER_cmp(is->serial, X509_get_serialNumber(cert)))
- return -1;
-
- return 0;
+ ESS_SIGNING_CERT_free(ss);
+ ESS_SIGNING_CERT_V2_free(ssv2);
+ return ret;
}
/*-
goto err;
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);
+ ERR_raise(ERR_LIB_TS, TS_R_UNSUPPORTED_VERSION);
goto err;
}
if ((flags & TS_VFY_POLICY)
goto err;
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);
+ ERR_raise(ERR_LIB_TS, TS_R_TSA_NAME_MISMATCH);
goto err;
}
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);
+ ERR_raise(ERR_LIB_TS, TS_R_TSA_UNTRUSTED);
goto err;
}
ret = 1;
if (failure_text[0] == '\0')
strcpy(failure_text, "unspecified");
- TSerr(TS_F_TS_CHECK_STATUS_INFO, TS_R_NO_TIME_STAMP_TOKEN);
- ERR_add_error_data(6,
- "status code: ", status_text,
- ", status text: ", embedded_status_text ?
- embedded_status_text : "unspecified",
- ", failure codes: ", failure_text);
+ ERR_raise_data(ERR_LIB_TS, TS_R_NO_TIME_STAMP_TOKEN,
+ "status code: %s, status text: %s, failure codes: %s",
+ status_text,
+ embedded_status_text ? embedded_status_text : "unspecified",
+ failure_text);
OPENSSL_free(embedded_status_text);
return 0;
static char *ts_get_status_text(STACK_OF(ASN1_UTF8STRING) *text)
{
- int i;
- unsigned int length = 0;
- char *result = NULL;
- char *p;
-
- for (i = 0; i < sk_ASN1_UTF8STRING_num(text); ++i) {
- ASN1_UTF8STRING *current = sk_ASN1_UTF8STRING_value(text, i);
- length += ASN1_STRING_length(current);
- length += 1; /* separator character */
- }
- if ((result = OPENSSL_malloc(length)) == NULL) {
- TSerr(TS_F_TS_GET_STATUS_TEXT, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- 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);
- p += length;
- }
- *p = '\0';
-
- return result;
+ return ossl_sk_ASN1_UTF8STRING2text(text, "/", TS_MAX_STATUS_LENGTH);
}
-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 = tst_info->policy_id;
+ 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);
+ ERR_raise(ERR_LIB_TS, TS_R_POLICY_MISMATCH);
return 0;
}
{
TS_MSG_IMPRINT *msg_imprint = tst_info->msg_imprint;
X509_ALGOR *md_alg_resp = msg_imprint->hash_algo;
- const EVP_MD *md;
+ EVP_MD *md = NULL;
EVP_MD_CTX *md_ctx = NULL;
unsigned char buffer[4096];
+ char name[OSSL_MAX_NAME_SIZE];
int length;
*md_alg = NULL;
if ((*md_alg = X509_ALGOR_dup(md_alg_resp)) == NULL)
goto err;
- if ((md = EVP_get_digestbyobj((*md_alg)->algorithm)) == NULL) {
- TSerr(TS_F_TS_COMPUTE_IMPRINT, TS_R_UNSUPPORTED_MD_ALGORITHM);
+
+ OBJ_obj2txt(name, sizeof(name), md_alg_resp->algorithm, 0);
+
+ (void)ERR_set_mark();
+ md = EVP_MD_fetch(NULL, name, NULL);
+
+ if (md == NULL)
+ md = (EVP_MD *)EVP_get_digestbyname(name);
+
+ if (md == NULL) {
+ (void)ERR_clear_last_mark();
goto err;
}
- length = EVP_MD_size(md);
+ (void)ERR_pop_to_mark();
+
+ length = EVP_MD_get_size(md);
if (length < 0)
goto err;
*imprint_len = length;
if ((*imprint = OPENSSL_malloc(*imprint_len)) == NULL) {
- TSerr(TS_F_TS_COMPUTE_IMPRINT, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_TS, ERR_R_MALLOC_FAILURE);
goto err;
}
md_ctx = EVP_MD_CTX_new();
if (md_ctx == NULL) {
- TSerr(TS_F_TS_COMPUTE_IMPRINT, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_TS, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_DigestInit(md_ctx, md))
goto err;
+ EVP_MD_free(md);
+ md = NULL;
while ((length = BIO_read(data, buffer, sizeof(buffer))) > 0) {
if (!EVP_DigestUpdate(md_ctx, buffer, length))
goto err;
return 1;
err:
EVP_MD_CTX_free(md_ctx);
+ EVP_MD_free(md);
X509_ALGOR_free(*md_alg);
+ *md_alg = NULL;
OPENSSL_free(*imprint);
*imprint_len = 0;
*imprint = 0;
}
static int ts_check_imprints(X509_ALGOR *algor_a,
- unsigned char *imprint_a, unsigned len_a,
+ const unsigned char *imprint_a, unsigned len_a,
TS_TST_INFO *tst_info)
{
TS_MSG_IMPRINT *b = tst_info->msg_imprint;
}
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);
+ ERR_raise(ERR_LIB_TS, TS_R_MESSAGE_IMPRINT_MISMATCH);
return ret;
}
const ASN1_INTEGER *b = tst_info->nonce;
if (!b) {
- TSerr(TS_F_TS_CHECK_NONCES, TS_R_NONCE_NOT_RETURNED);
+ ERR_raise(ERR_LIB_TS, TS_R_NONCE_NOT_RETURNED);
return 0;
}
/* No error if a nonce is returned without being requested. */
if (ASN1_INTEGER_cmp(a, b) != 0) {
- TSerr(TS_F_TS_CHECK_NONCES, TS_R_NONCE_MISMATCH);
+ ERR_raise(ERR_LIB_TS, TS_R_NONCE_MISMATCH);
return 0;
}
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