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/*
* Copyright (c) 2014, Vsevolod Stakhov
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef RDNS_CURVE_H_
#define RDNS_CURVE_H_
#ifdef __cplusplus
extern "C" {
#endif
struct rdns_curve_ctx;
/**
* Create new dnscurve ctx
* @return
*/
struct rdns_curve_ctx* rdns_curve_ctx_new (double rekey_interval);
/**
* Add key for server `name`
* @param ctx curve context
* @param name name of server (ip address)
* @param pubkey pubkey bytes (must be `RDSN_CURVE_PUBKEY_LEN`)
*/
void rdns_curve_ctx_add_key (struct rdns_curve_ctx *ctx,
const char *name, const unsigned char *pubkey);
/**
* Destroy curve context
* @param ctx
*/
void rdns_curve_ctx_destroy (struct rdns_curve_ctx *ctx);
/**
* Register DNSCurve plugin (libsodium should be enabled for this)
* @param resolver
* @param ctx
*/
void rdns_curve_register_plugin (struct rdns_resolver *resolver,
struct rdns_curve_ctx *ctx);
/**
* Create DNSCurve key from the base16 encoded string
* @param hex input hex (must be NULL terminated)
* @return a key or NULL (not NULL terminated)
*/
unsigned char * rdns_curve_key_from_hex (const char *hex);
#ifdef __cplusplus
}
#endif
#endif /* RDNS_CURVE_H_ */
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