2 * Copyright (c) 2012, JANET(UK)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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10 * notice, this list of conditions and the following disclaimer.
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14 * documentation and/or other materials provided with the distribution.
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17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
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21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31 * OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <openssl/dh.h>
39 #include <openssl/bn.h>
40 #include <trust_router/tr_versioning.h>
41 #include <trust_router/tid.h>
43 TR_EXPORT DH *tr_dh_new(void);
44 TR_EXPORT void tr_dh_destroy(DH *dh); /* called destroy because free is already used */
45 TR_EXPORT DH *tr_create_dh_params(unsigned char *key, size_t len);
46 TR_EXPORT DH *tr_create_matching_dh(unsigned char *key, size_t len, DH *in_dh);
47 TR_EXPORT void tr_destroy_dh_params(DH *dh);
48 TR_EXPORT DH *tr_dh_dup(DH *in);
49 TR_EXPORT int tr_compute_dh_key(unsigned char **pbuf, BIGNUM *pub_key, DH *priv_dh);
51 TR_EXPORT void tr_dh_free(unsigned char *dh_buf);
52 int TR_EXPORT tr_dh_pub_hash(TID_REQ *request,
53 unsigned char **out_digest,
56 TR_EXPORT void tr_bin_to_hex(const unsigned char * bin, size_t binlen,
57 char * hex_out, size_t hex_len);