lws-jwk.h

/*
 * libwebsockets - small server side websockets and web server implementation
 *
 * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation:
 *  version 2.1 of the License.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA  02110-1301  USA
 *
 * included from libwebsockets.h
 */
 
 
enum enum_jwk_meta_tok {
        JWK_META_KTY,
        JWK_META_KID,
        JWK_META_USE,
        JWK_META_KEY_OPS,
        JWK_META_X5C,
        JWK_META_ALG,
 
        LWS_COUNT_JWK_ELEMENTS
};
 
struct lws_jwk {
        /* key data elements */
        struct lws_gencrypto_keyelem e[LWS_GENCRYPTO_MAX_KEYEL_COUNT];
        /* generic meta key elements, like KID */
        struct lws_gencrypto_keyelem meta[LWS_COUNT_JWK_ELEMENTS];
        int kty;                        
        char private_key; /* nonzero = has private key elements */
};
 
typedef int (*lws_jwk_key_import_callback)(struct lws_jwk *s, void *user);
 
struct lws_jwk_parse_state {
        struct lws_jwk *jwk;
        char b64[(((8192 / 8) * 4) / 3) + 1]; /* enough for 8Kb key */
        lws_jwk_key_import_callback per_key_cb;
        void *user;
        int pos;
        unsigned short possible;
};
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_import(struct lws_jwk *jwk, lws_jwk_key_import_callback cb, void *user,
               const char *in, size_t len);
 
LWS_VISIBLE LWS_EXTERN void
lws_jwk_destroy(struct lws_jwk *jwk);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_dup_oct(struct lws_jwk *jwk, const void *key, int len);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_export(struct lws_jwk *jwk, int _private, char *p, int *len);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_load(struct lws_jwk *jwk, const char *filename,
             lws_jwk_key_import_callback cb, void *user);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_save(struct lws_jwk *jwk, const char *filename);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_rfc7638_fingerprint(struct lws_jwk *jwk, char *digest32);
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_strdup_meta(struct lws_jwk *jwk, enum enum_jwk_meta_tok idx,
                    const char *in, int len);
 
 
LWS_VISIBLE LWS_EXTERN int
lws_jwk_dump(struct lws_jwk *jwk);
 
LWS_VISIBLE int
lws_jwk_generate(struct lws_context *context, struct lws_jwk *jwk,
                 enum lws_gencrypto_kty kty, int bits, const char *curve);