+++ /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
-se_choose(const br_ssl_server_policy_class **pctx,
- const br_ssl_server_context *cc,
- br_ssl_server_choices *choices)
-{
- br_ssl_server_policy_ec_context *pc;
- const br_suite_translated *st;
- size_t u, st_num;
- int hash_id;
-
- pc = (br_ssl_server_policy_ec_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 = br_sha1_ID;
- }
- 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_ECDH_RSA:
- if ((pc->allowed_usages & BR_KEYTYPE_KEYX) != 0
- && pc->cert_issuer_key_type == BR_KEYTYPE_RSA)
- {
- choices->cipher_suite = st[u][0];
- return 1;
- }
- break;
- case BR_SSLKEYX_ECDH_ECDSA:
- if ((pc->allowed_usages & BR_KEYTYPE_KEYX) != 0
- && pc->cert_issuer_key_type == BR_KEYTYPE_EC)
- {
- choices->cipher_suite = st[u][0];
- return 1;
- }
- break;
- case BR_SSLKEYX_ECDHE_ECDSA:
- 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
-se_do_keyx(const br_ssl_server_policy_class **pctx,
- unsigned char *data, size_t len)
-{
- br_ssl_server_policy_ec_context *pc;
-
- pc = (br_ssl_server_policy_ec_context *)pctx;
- return pc->iec->mul(data, len, pc->sk->x, pc->sk->xlen, pc->sk->curve);
-}
-
-static size_t
-se_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_ec_context *pc;
- unsigned char hv[64];
- const br_hash_class *hc;
-
- pc = (br_ssl_server_policy_ec_context *)pctx;
- hc = br_multihash_getimpl(pc->mhash, hash_id);
- if (hc == NULL) {
- return 0;
- }
- memcpy(hv, data, hv_len);
- if (len < 139) {
- return 0;
- }
- return pc->iecdsa(pc->iec, hc, hv, pc->sk, data);
-}
-
-static const br_ssl_server_policy_class se_policy_vtable = {
- sizeof(br_ssl_server_policy_ec_context),
- se_choose,
- se_do_keyx,
- se_do_sign
-};
-
-/* see bearssl_ssl.h */
-void
-br_ssl_server_set_single_ec(br_ssl_server_context *cc,
- const br_x509_certificate *chain, size_t chain_len,
- const br_ec_private_key *sk, unsigned allowed_usages,
- unsigned cert_issuer_key_type,
- const br_ec_impl *iec, br_ecdsa_sign iecdsa)
-{
- cc->chain_handler.single_ec.vtable = &se_policy_vtable;
- cc->chain_handler.single_ec.chain = chain;
- cc->chain_handler.single_ec.chain_len = chain_len;
- cc->chain_handler.single_ec.sk = sk;
- cc->chain_handler.single_ec.allowed_usages = allowed_usages;
- cc->chain_handler.single_ec.cert_issuer_key_type = cert_issuer_key_type;
- cc->chain_handler.single_ec.mhash = &cc->eng.mhash;
- cc->chain_handler.single_ec.iec = iec;
- cc->chain_handler.single_ec.iecdsa = iecdsa;
- cc->policy_vtable = &cc->chain_handler.single_ec.vtable;
-}