1/* 2 * Copyright (c) 2006 Kungliga Tekniska H��gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34/* 35 * $Id: dsa.h,v 1.1.1.1 2011/06/10 09:34:43 andrew Exp $ 36 */ 37 38#ifndef _HEIM_DSA_H 39#define _HEIM_DSA_H 1 40 41#include <hcrypto/bn.h> 42 43/* symbol renaming */ 44#define DSA_null_method hc_DSA_null_method 45#define DSA_new hc_DSA_new 46#define DSA_free hc_DSA_free 47#define DSA_up_ref hc_DSA_up_ref 48#define DSA_set_default_method hc_DSA_set_default_method 49#define DSA_get_default_method hc_DSA_get_default_method 50#define DSA_set_method hc_DSA_set_method 51#define DSA_get_method hc_DSA_get_method 52#define DSA_set_app_data hc_DSA_set_app_data 53#define DSA_get_app_data hc_DSA_get_app_data 54#define DSA_size hc_DSA_size 55#define DSA_verify hc_DSA_verify 56 57/* 58 * 59 */ 60 61 62typedef struct DSA DSA; 63typedef struct DSA_METHOD DSA_METHOD; 64typedef struct DSA_SIG DSA_SIG; 65 66struct DSA_SIG { 67 BIGNUM *r; 68 BIGNUM *s; 69}; 70 71struct DSA_METHOD { 72 const char *name; 73 DSA_SIG * (*dsa_do_sign)(const unsigned char *, int, DSA *); 74 int (*dsa_sign_setup)(DSA *, BN_CTX *, BIGNUM **, BIGNUM **); 75 int (*dsa_do_verify)(const unsigned char *, int, DSA_SIG *, DSA *); 76 int (*dsa_mod_exp)(DSA *, BIGNUM *, BIGNUM *, BIGNUM *, 77 BIGNUM *, BIGNUM *, BIGNUM *, BN_CTX *, 78 BN_MONT_CTX *); 79 int (*bn_mod_exp)(DSA *, BIGNUM *, BIGNUM *, const BIGNUM *, 80 const BIGNUM *, BN_CTX *, 81 BN_MONT_CTX *); 82 int (*init)(DSA *); 83 int (*finish)(DSA *); 84 int flags; 85 void *app_data; 86}; 87 88struct DSA { 89 int pad; 90 long version; 91 int write_params; 92 BIGNUM *p; 93 BIGNUM *q; 94 BIGNUM *g; 95 96 BIGNUM *pub_key; 97 BIGNUM *priv_key; 98 99 BIGNUM *kinv; 100 BIGNUM *r; 101 int flags; 102 void *method_mont_p; 103 int references; 104 struct dsa_CRYPTO_EX_DATA { 105 void *sk; 106 int dummy; 107 } ex_data; 108 const DSA_METHOD *meth; 109 void *engine; 110}; 111 112/* 113 * 114 */ 115 116const DSA_METHOD *DSA_null_method(void); 117 118/* 119 * 120 */ 121 122DSA * DSA_new(void); 123void DSA_free(DSA *); 124int DSA_up_ref(DSA *); 125 126void DSA_set_default_method(const DSA_METHOD *); 127const DSA_METHOD * DSA_get_default_method(void); 128 129const DSA_METHOD * DSA_get_method(const DSA *); 130int DSA_set_method(DSA *, const DSA_METHOD *); 131 132void DSA_set_app_data(DSA *, void *arg); 133void * DSA_get_app_data(DSA *); 134 135int DSA_size(const DSA *); 136 137int DSA_verify(int, const unsigned char *, int, 138 const unsigned char *, int, DSA *); 139 140#endif /* _HEIM_DSA_H */ 141