1*0957b409SSimon J. Gerraty /*
2*0957b409SSimon J. Gerraty * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
3*0957b409SSimon J. Gerraty *
4*0957b409SSimon J. Gerraty * Permission is hereby granted, free of charge, to any person obtaining
5*0957b409SSimon J. Gerraty * a copy of this software and associated documentation files (the
6*0957b409SSimon J. Gerraty * "Software"), to deal in the Software without restriction, including
7*0957b409SSimon J. Gerraty * without limitation the rights to use, copy, modify, merge, publish,
8*0957b409SSimon J. Gerraty * distribute, sublicense, and/or sell copies of the Software, and to
9*0957b409SSimon J. Gerraty * permit persons to whom the Software is furnished to do so, subject to
10*0957b409SSimon J. Gerraty * the following conditions:
11*0957b409SSimon J. Gerraty *
12*0957b409SSimon J. Gerraty * The above copyright notice and this permission notice shall be
13*0957b409SSimon J. Gerraty * included in all copies or substantial portions of the Software.
14*0957b409SSimon J. Gerraty *
15*0957b409SSimon J. Gerraty * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16*0957b409SSimon J. Gerraty * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17*0957b409SSimon J. Gerraty * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18*0957b409SSimon J. Gerraty * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19*0957b409SSimon J. Gerraty * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20*0957b409SSimon J. Gerraty * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21*0957b409SSimon J. Gerraty * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22*0957b409SSimon J. Gerraty * SOFTWARE.
23*0957b409SSimon J. Gerraty */
24*0957b409SSimon J. Gerraty
25*0957b409SSimon J. Gerraty #include "inner.h"
26*0957b409SSimon J. Gerraty
27*0957b409SSimon J. Gerraty static void
cc_none0(const br_ssl_client_certificate_class ** pctx)28*0957b409SSimon J. Gerraty cc_none0(const br_ssl_client_certificate_class **pctx)
29*0957b409SSimon J. Gerraty {
30*0957b409SSimon J. Gerraty (void)pctx;
31*0957b409SSimon J. Gerraty }
32*0957b409SSimon J. Gerraty
33*0957b409SSimon J. Gerraty static void
cc_none1(const br_ssl_client_certificate_class ** pctx,size_t len)34*0957b409SSimon J. Gerraty cc_none1(const br_ssl_client_certificate_class **pctx, size_t len)
35*0957b409SSimon J. Gerraty {
36*0957b409SSimon J. Gerraty (void)pctx;
37*0957b409SSimon J. Gerraty (void)len;
38*0957b409SSimon J. Gerraty }
39*0957b409SSimon J. Gerraty
40*0957b409SSimon J. Gerraty static void
cc_none2(const br_ssl_client_certificate_class ** pctx,const unsigned char * data,size_t len)41*0957b409SSimon J. Gerraty cc_none2(const br_ssl_client_certificate_class **pctx,
42*0957b409SSimon J. Gerraty const unsigned char *data, size_t len)
43*0957b409SSimon J. Gerraty {
44*0957b409SSimon J. Gerraty (void)pctx;
45*0957b409SSimon J. Gerraty (void)data;
46*0957b409SSimon J. Gerraty (void)len;
47*0957b409SSimon J. Gerraty }
48*0957b409SSimon J. Gerraty
49*0957b409SSimon J. Gerraty 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)50*0957b409SSimon J. Gerraty cc_choose(const br_ssl_client_certificate_class **pctx,
51*0957b409SSimon J. Gerraty const br_ssl_client_context *cc, uint32_t auth_types,
52*0957b409SSimon J. Gerraty br_ssl_client_certificate *choices)
53*0957b409SSimon J. Gerraty {
54*0957b409SSimon J. Gerraty br_ssl_client_certificate_rsa_context *zc;
55*0957b409SSimon J. Gerraty int x;
56*0957b409SSimon J. Gerraty
57*0957b409SSimon J. Gerraty (void)cc;
58*0957b409SSimon J. Gerraty zc = (br_ssl_client_certificate_rsa_context *)pctx;
59*0957b409SSimon J. Gerraty x = br_ssl_choose_hash((unsigned)auth_types);
60*0957b409SSimon J. Gerraty if (x == 0 && (auth_types & 1) == 0) {
61*0957b409SSimon J. Gerraty memset(choices, 0, sizeof *choices);
62*0957b409SSimon J. Gerraty }
63*0957b409SSimon J. Gerraty choices->auth_type = BR_AUTH_RSA;
64*0957b409SSimon J. Gerraty choices->hash_id = x;
65*0957b409SSimon J. Gerraty choices->chain = zc->chain;
66*0957b409SSimon J. Gerraty choices->chain_len = zc->chain_len;
67*0957b409SSimon J. Gerraty }
68*0957b409SSimon J. Gerraty
69*0957b409SSimon J. Gerraty /*
70*0957b409SSimon J. Gerraty * OID for hash functions in RSA signatures.
71*0957b409SSimon J. Gerraty */
72*0957b409SSimon J. Gerraty static const unsigned char HASH_OID_SHA1[] = {
73*0957b409SSimon J. Gerraty 0x05, 0x2B, 0x0E, 0x03, 0x02, 0x1A
74*0957b409SSimon J. Gerraty };
75*0957b409SSimon J. Gerraty
76*0957b409SSimon J. Gerraty static const unsigned char HASH_OID_SHA224[] = {
77*0957b409SSimon J. Gerraty 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04
78*0957b409SSimon J. Gerraty };
79*0957b409SSimon J. Gerraty
80*0957b409SSimon J. Gerraty static const unsigned char HASH_OID_SHA256[] = {
81*0957b409SSimon J. Gerraty 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01
82*0957b409SSimon J. Gerraty };
83*0957b409SSimon J. Gerraty
84*0957b409SSimon J. Gerraty static const unsigned char HASH_OID_SHA384[] = {
85*0957b409SSimon J. Gerraty 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02
86*0957b409SSimon J. Gerraty };
87*0957b409SSimon J. Gerraty
88*0957b409SSimon J. Gerraty static const unsigned char HASH_OID_SHA512[] = {
89*0957b409SSimon J. Gerraty 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03
90*0957b409SSimon J. Gerraty };
91*0957b409SSimon J. Gerraty
92*0957b409SSimon J. Gerraty static const unsigned char *HASH_OID[] = {
93*0957b409SSimon J. Gerraty HASH_OID_SHA1,
94*0957b409SSimon J. Gerraty HASH_OID_SHA224,
95*0957b409SSimon J. Gerraty HASH_OID_SHA256,
96*0957b409SSimon J. Gerraty HASH_OID_SHA384,
97*0957b409SSimon J. Gerraty HASH_OID_SHA512
98*0957b409SSimon J. Gerraty };
99*0957b409SSimon J. Gerraty
100*0957b409SSimon J. Gerraty 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)101*0957b409SSimon J. Gerraty cc_do_sign(const br_ssl_client_certificate_class **pctx,
102*0957b409SSimon J. Gerraty int hash_id, size_t hv_len, unsigned char *data, size_t len)
103*0957b409SSimon J. Gerraty {
104*0957b409SSimon J. Gerraty br_ssl_client_certificate_rsa_context *zc;
105*0957b409SSimon J. Gerraty unsigned char hv[64];
106*0957b409SSimon J. Gerraty const unsigned char *hash_oid;
107*0957b409SSimon J. Gerraty size_t sig_len;
108*0957b409SSimon J. Gerraty
109*0957b409SSimon J. Gerraty zc = (br_ssl_client_certificate_rsa_context *)pctx;
110*0957b409SSimon J. Gerraty memcpy(hv, data, hv_len);
111*0957b409SSimon J. Gerraty if (hash_id == 0) {
112*0957b409SSimon J. Gerraty hash_oid = NULL;
113*0957b409SSimon J. Gerraty } else if (hash_id >= 2 && hash_id <= 6) {
114*0957b409SSimon J. Gerraty hash_oid = HASH_OID[hash_id - 2];
115*0957b409SSimon J. Gerraty } else {
116*0957b409SSimon J. Gerraty return 0;
117*0957b409SSimon J. Gerraty }
118*0957b409SSimon J. Gerraty sig_len = (zc->sk->n_bitlen + 7) >> 3;
119*0957b409SSimon J. Gerraty if (len < sig_len) {
120*0957b409SSimon J. Gerraty return 0;
121*0957b409SSimon J. Gerraty }
122*0957b409SSimon J. Gerraty return zc->irsasign(hash_oid, hv, hv_len, zc->sk, data) ? sig_len : 0;
123*0957b409SSimon J. Gerraty }
124*0957b409SSimon J. Gerraty
125*0957b409SSimon J. Gerraty static const br_ssl_client_certificate_class ccert_vtable = {
126*0957b409SSimon J. Gerraty sizeof(br_ssl_client_certificate_rsa_context),
127*0957b409SSimon J. Gerraty cc_none0, /* start_name_list */
128*0957b409SSimon J. Gerraty cc_none1, /* start_name */
129*0957b409SSimon J. Gerraty cc_none2, /* append_name */
130*0957b409SSimon J. Gerraty cc_none0, /* end_name */
131*0957b409SSimon J. Gerraty cc_none0, /* end_name_list */
132*0957b409SSimon J. Gerraty cc_choose,
133*0957b409SSimon J. Gerraty 0,
134*0957b409SSimon J. Gerraty cc_do_sign
135*0957b409SSimon J. Gerraty };
136*0957b409SSimon J. Gerraty
137*0957b409SSimon J. Gerraty /* see bearssl_ssl.h */
138*0957b409SSimon J. Gerraty void
br_ssl_client_set_single_rsa(br_ssl_client_context * cc,const br_x509_certificate * chain,size_t chain_len,const br_rsa_private_key * sk,br_rsa_pkcs1_sign irsasign)139*0957b409SSimon J. Gerraty br_ssl_client_set_single_rsa(br_ssl_client_context *cc,
140*0957b409SSimon J. Gerraty const br_x509_certificate *chain, size_t chain_len,
141*0957b409SSimon J. Gerraty const br_rsa_private_key *sk, br_rsa_pkcs1_sign irsasign)
142*0957b409SSimon J. Gerraty {
143*0957b409SSimon J. Gerraty cc->client_auth.single_rsa.vtable = &ccert_vtable;
144*0957b409SSimon J. Gerraty cc->client_auth.single_rsa.chain = chain;
145*0957b409SSimon J. Gerraty cc->client_auth.single_rsa.chain_len = chain_len;
146*0957b409SSimon J. Gerraty cc->client_auth.single_rsa.sk = sk;
147*0957b409SSimon J. Gerraty cc->client_auth.single_rsa.irsasign = irsasign;
148*0957b409SSimon J. Gerraty cc->client_auth_vtable = &cc->client_auth.single_rsa.vtable;
149*0957b409SSimon J. Gerraty }
150