+++ /dev/null
-/*
- * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "inner.h"
-
-static int
-sr_choose(const br_ssl_server_policy_class **pctx,
- const br_ssl_server_context *cc,
- br_ssl_server_choices *choices)
-{
- br_ssl_server_policy_rsa_context *pc;
- const br_suite_translated *st;
- size_t u, st_num;
- int hash_id;
-
- pc = (br_ssl_server_policy_rsa_context *)pctx;
- st = br_ssl_server_get_client_suites(cc, &st_num);
- hash_id = br_ssl_choose_hash(br_ssl_server_get_client_hashes(cc));
- if (cc->eng.session.version < BR_TLS12) {
- hash_id = 0;
- }
- choices->chain = pc->chain;
- choices->chain_len = pc->chain_len;
- for (u = 0; u < st_num; u ++) {
- unsigned tt;
-
- tt = st[u][1];
- switch (tt >> 12) {
- case BR_SSLKEYX_RSA:
- if ((pc->allowed_usages & BR_KEYTYPE_KEYX) != 0) {
- choices->cipher_suite = st[u][0];
- return 1;
- }
- break;
- case BR_SSLKEYX_ECDHE_RSA:
- if ((pc->allowed_usages & BR_KEYTYPE_SIGN) != 0
- && hash_id != 0)
- {
- choices->cipher_suite = st[u][0];
- choices->hash_id = hash_id;
- return 1;
- }
- break;
- }
- }
- return 0;
-}
-
-static uint32_t
-sr_do_keyx(const br_ssl_server_policy_class **pctx,
- unsigned char *data, size_t len)
-{
- br_ssl_server_policy_rsa_context *pc;
-
- pc = (br_ssl_server_policy_rsa_context *)pctx;
- return br_rsa_ssl_decrypt(pc->irsacore, pc->sk, data, len);
-}
-
-/*
- * OID for hash functions in RSA signatures.
- */
-static const unsigned char HASH_OID_SHA1[] = {
- 0x05, 0x2B, 0x0E, 0x03, 0x02, 0x1A
-};
-
-static const unsigned char HASH_OID_SHA224[] = {
- 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04
-};
-
-static const unsigned char HASH_OID_SHA256[] = {
- 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01
-};
-
-static const unsigned char HASH_OID_SHA384[] = {
- 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02
-};
-
-static const unsigned char HASH_OID_SHA512[] = {
- 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03
-};
-
-static const unsigned char *HASH_OID[] = {
- HASH_OID_SHA1,
- HASH_OID_SHA224,
- HASH_OID_SHA256,
- HASH_OID_SHA384,
- HASH_OID_SHA512
-};
-
-static size_t
-sr_do_sign(const br_ssl_server_policy_class **pctx,
- int hash_id, size_t hv_len, unsigned char *data, size_t len)
-{
- br_ssl_server_policy_rsa_context *pc;
- unsigned char hv[64];
- size_t sig_len;
- const unsigned char *hash_oid;
-
- pc = (br_ssl_server_policy_rsa_context *)pctx;
- memcpy(hv, data, hv_len);
- if (hash_id == 0) {
- hash_oid = NULL;
- } else if (hash_id >= 2 && hash_id <= 6) {
- hash_oid = HASH_OID[hash_id - 2];
- } else {
- return 0;
- }
- sig_len = (pc->sk->n_bitlen + 7) >> 3;
- if (len < sig_len) {
- return 0;
- }
- return pc->irsasign(hash_oid, hv, hv_len, pc->sk, data) ? sig_len : 0;
-}
-
-static const br_ssl_server_policy_class sr_policy_vtable = {
- sizeof(br_ssl_server_policy_rsa_context),
- sr_choose,
- sr_do_keyx,
- sr_do_sign
-};
-
-/* see bearssl_ssl.h */
-void
-br_ssl_server_set_single_rsa(br_ssl_server_context *cc,
- const br_x509_certificate *chain, size_t chain_len,
- const br_rsa_private_key *sk, unsigned allowed_usages,
- br_rsa_private irsacore, br_rsa_pkcs1_sign irsasign)
-{
- cc->chain_handler.single_rsa.vtable = &sr_policy_vtable;
- cc->chain_handler.single_rsa.chain = chain;
- cc->chain_handler.single_rsa.chain_len = chain_len;
- cc->chain_handler.single_rsa.sk = sk;
- cc->chain_handler.single_rsa.allowed_usages = allowed_usages;
- cc->chain_handler.single_rsa.irsacore = irsacore;
- cc->chain_handler.single_rsa.irsasign = irsasign;
- cc->policy_vtable = &cc->chain_handler.single_rsa.vtable;
-}
projects / BearSSL / blobdiff