diff options
Diffstat (limited to 'test/monniaux/BearSSL/src/ssl/ssl_ccert_single_ec.c')
| -rw-r--r-- | test/monniaux/BearSSL/src/ssl/ssl_ccert_single_ec.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/test/monniaux/BearSSL/src/ssl/ssl_ccert_single_ec.c b/test/monniaux/BearSSL/src/ssl/ssl_ccert_single_ec.c new file mode 100644 index 00000000..93ebcde6 --- /dev/null +++ b/test/monniaux/BearSSL/src/ssl/ssl_ccert_single_ec.c @@ -0,0 +1,156 @@ +/* + * 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 void +cc_none0(const br_ssl_client_certificate_class **pctx) +{ + (void)pctx; +} + +static void +cc_none1(const br_ssl_client_certificate_class **pctx, size_t len) +{ + (void)pctx; + (void)len; +} + +static void +cc_none2(const br_ssl_client_certificate_class **pctx, + const unsigned char *data, size_t len) +{ + (void)pctx; + (void)data; + (void)len; +} + +static void +cc_choose(const br_ssl_client_certificate_class **pctx, + const br_ssl_client_context *cc, uint32_t auth_types, + br_ssl_client_certificate *choices) +{ + br_ssl_client_certificate_ec_context *zc; + int x; + int scurve; + + zc = (br_ssl_client_certificate_ec_context *)pctx; + scurve = br_ssl_client_get_server_curve(cc); + + if ((zc->allowed_usages & BR_KEYTYPE_KEYX) != 0 + && scurve == zc->sk->curve) + { + int x; + + x = (zc->issuer_key_type == BR_KEYTYPE_RSA) ? 16 : 17; + if (((auth_types >> x) & 1) != 0) { + choices->auth_type = BR_AUTH_ECDH; + choices->hash_id = -1; + choices->chain = zc->chain; + choices->chain_len = zc->chain_len; + } + } + + /* + * For ECDSA authentication, we must choose an appropriate + * hash function. + */ + x = br_ssl_choose_hash((unsigned)(auth_types >> 8)); + if (x == 0 || (zc->allowed_usages & BR_KEYTYPE_SIGN) == 0) { + memset(choices, 0, sizeof *choices); + return; + } + choices->auth_type = BR_AUTH_ECDSA; + choices->hash_id = x; + choices->chain = zc->chain; + choices->chain_len = zc->chain_len; +} + +static uint32_t +cc_do_keyx(const br_ssl_client_certificate_class **pctx, + unsigned char *data, size_t *len) +{ + br_ssl_client_certificate_ec_context *zc; + uint32_t r; + size_t xoff, xlen; + + zc = (br_ssl_client_certificate_ec_context *)pctx; + r = zc->iec->mul(data, *len, zc->sk->x, zc->sk->xlen, zc->sk->curve); + xoff = zc->iec->xoff(zc->sk->curve, &xlen); + memmove(data, data + xoff, xlen); + *len = xlen; + return r; +} + +static size_t +cc_do_sign(const br_ssl_client_certificate_class **pctx, + int hash_id, size_t hv_len, unsigned char *data, size_t len) +{ + br_ssl_client_certificate_ec_context *zc; + unsigned char hv[64]; + const br_hash_class *hc; + + zc = (br_ssl_client_certificate_ec_context *)pctx; + memcpy(hv, data, hv_len); + hc = br_multihash_getimpl(zc->mhash, hash_id); + if (hc == NULL) { + return 0; + } + if (len < 139) { + return 0; + } + return zc->iecdsa(zc->iec, hc, hv, zc->sk, data); +} + +static const br_ssl_client_certificate_class ccert_vtable = { + sizeof(br_ssl_client_certificate_ec_context), + cc_none0, /* start_name_list */ + cc_none1, /* start_name */ + cc_none2, /* append_name */ + cc_none0, /* end_name */ + cc_none0, /* end_name_list */ + cc_choose, + cc_do_keyx, + cc_do_sign +}; + +/* see bearssl_ssl.h */ +void +br_ssl_client_set_single_ec(br_ssl_client_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->client_auth.single_ec.vtable = &ccert_vtable; + cc->client_auth.single_ec.chain = chain; + cc->client_auth.single_ec.chain_len = chain_len; + cc->client_auth.single_ec.sk = sk; + cc->client_auth.single_ec.allowed_usages = allowed_usages; + cc->client_auth.single_ec.issuer_key_type = cert_issuer_key_type; + cc->client_auth.single_ec.mhash = &cc->eng.mhash; + cc->client_auth.single_ec.iec = iec; + cc->client_auth.single_ec.iecdsa = iecdsa; + cc->client_auth_vtable = &cc->client_auth.single_ec.vtable; +} |