diff options
Diffstat (limited to 'test/monniaux/BearSSL/src/ssl/ssl_scert_single_ec.c')
| -rw-r--r-- | test/monniaux/BearSSL/src/ssl/ssl_scert_single_ec.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/test/monniaux/BearSSL/src/ssl/ssl_scert_single_ec.c b/test/monniaux/BearSSL/src/ssl/ssl_scert_single_ec.c new file mode 100644 index 00000000..ce8d7539 --- /dev/null +++ b/test/monniaux/BearSSL/src/ssl/ssl_scert_single_ec.c @@ -0,0 +1,142 @@ +/* + * 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; + unsigned 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) >> 8); + 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->algo_id = hash_id + 0xFF00; + 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; + uint32_t r; + size_t xoff, xlen; + + pc = (br_ssl_server_policy_ec_context *)pctx; + r = pc->iec->mul(data, *len, pc->sk->x, pc->sk->xlen, pc->sk->curve); + xoff = pc->iec->xoff(pc->sk->curve, &xlen); + memmove(data, data + xoff, xlen); + *len = xlen; + return r; +} + +static size_t +se_do_sign(const br_ssl_server_policy_class **pctx, + unsigned algo_id, unsigned char *data, size_t hv_len, size_t len) +{ + br_ssl_server_policy_ec_context *pc; + unsigned char hv[64]; + const br_hash_class *hc; + + algo_id &= 0xFF; + pc = (br_ssl_server_policy_ec_context *)pctx; + hc = br_multihash_getimpl(pc->mhash, algo_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; +} |