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