/* * Copyright (c) 2006 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. 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. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 THE INSTITUTE OR CONTRIBUTORS 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. */ /* * $Id$ */ #ifndef _HEIM_DH_H #define _HEIM_DH_H 1 /* symbol renaming */ #define DH_null_method hc_DH_null_method #define DH_imath_method hc_DH_imath_method #define DH_new hc_DH_new #define DH_new_method hc_DH_new_method #define DH_free hc_DH_free #define DH_up_ref hc_DH_up_ref #define DH_size hc_DH_size #define DH_set_default_method hc_DH_set_default_method #define DH_get_default_method hc_DH_get_default_method #define DH_set_method hc_DH_set_method #define DH_get_method hc_DH_get_method #define DH_set_ex_data hc_DH_set_ex_data #define DH_get_ex_data hc_DH_get_ex_data #define DH_generate_parameters_ex hc_DH_generate_parameters_ex #define DH_check_pubkey hc_DH_check_pubkey #define DH_generate_key hc_DH_generate_key #define DH_compute_key hc_DH_compute_key /* * */ typedef struct DH DH; typedef struct DH_METHOD DH_METHOD; #include <hcrypto/bn.h> #include <hcrypto/engine.h> struct DH_METHOD { const char *name; int (*generate_key)(DH *); int (*compute_key)(unsigned char *,const BIGNUM *,DH *); int (*bn_mod_exp)(const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *, BN_MONT_CTX *); int (*init)(DH *); int (*finish)(DH *); int flags; void *app_data; int (*generate_params)(DH *, int, int, BN_GENCB *); }; struct DH { int pad; int version; BIGNUM *p; BIGNUM *g; long length; BIGNUM *pub_key; BIGNUM *priv_key; int flags; void *method_mont_p; BIGNUM *q; BIGNUM *j; void *seed; int seedlen; BIGNUM *counter; int references; struct CRYPTO_EX_DATA { void *sk; int dummy; } ex_data; const DH_METHOD *meth; ENGINE *engine; }; /* DH_check_pubkey return codes in `codes' argument. */ #define DH_CHECK_PUBKEY_TOO_SMALL 1 #define DH_CHECK_PUBKEY_TOO_LARGE 2 /* * */ const DH_METHOD *DH_null_method(void); const DH_METHOD *DH_imath_method(void); DH * DH_new(void); DH * DH_new_method(ENGINE *); void DH_free(DH *); int DH_up_ref(DH *); int DH_size(const DH *); void DH_set_default_method(const DH_METHOD *); const DH_METHOD * DH_get_default_method(void); int DH_set_method(DH *, const DH_METHOD *); int DH_set_ex_data(DH *, int, void *); void * DH_get_ex_data(DH *, int); int DH_generate_parameters_ex(DH *, int, int, BN_GENCB *); int DH_check_pubkey(const DH *, const BIGNUM *, int *); int DH_generate_key(DH *); int DH_compute_key(unsigned char *,const BIGNUM *,DH *); #endif /* _HEIM_DH_H */