/*

 * Dropbear - a SSH2 server

 * 

 * Copyright (c) 2002,2003 Matt Johnston

 * All rights reserved.

 * 

 * 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. */

#ifndef DROPBEAR_DSS_H_

#define DROPBEAR_DSS_H_

#include "includes.h"

#include "buffer.h"

#if DROPBEAR_DSS 

typedef struct dropbear_DSS_Key {

  mp_int* p;

  mp_int* q;

  mp_int* g;

  mp_int* y;

  /* x is the private part */

  mp_int* x;

} dropbear_dss_key;

#define DSS_P_BITS 1024

#define DSS_Q_BITS 160

void buf_put_dss_sign(buffer* buf, const dropbear_dss_key *key, const buffer *data_buf);

#if DROPBEAR_SIGNKEY_VERIFY

int buf_dss_verify(buffer* buf, const dropbear_dss_key *key, const buffer *data_buf);

#endif

int buf_get_dss_pub_key(buffer* buf, dropbear_dss_key *key);

int buf_get_dss_priv_key(buffer* buf, dropbear_dss_key *key);

void buf_put_dss_pub_key(buffer* buf, const dropbear_dss_key *key);

void buf_put_dss_priv_key(buffer* buf, const dropbear_dss_key *key);

void dss_key_free(dropbear_dss_key *key);

#endif /* DROPBEAR_DSS */

#endif /* DROPBEAR_DSS_H_ */