1 /* crypto/ecdsa/ecdsa.h */
2 /* ====================================================================
3 * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * licensing@OpenSSL.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
55 #ifndef HEADER_ECDSA_H
56 #define HEADER_ECDSA_H
58 #ifdef OPENSSL_NO_ECDSA
59 #error ECDSA is disabled.
62 #include <openssl/bn.h>
63 #include <openssl/ec.h>
64 #include <openssl/ossl_typ.h>
70 typedef struct ECDSA_SIG_st
76 typedef struct ecdsa_method
79 ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len,
81 int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
83 int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
84 ECDSA_SIG *sig, EC_KEY *eckey);
86 int (*init)(EC_KEY *eckey);
87 int (*finish)(EC_KEY *eckey);
93 typedef struct ecdsa_data_st {
94 /* EC_KEY_METH_DATA part */
95 int (*init)(EC_KEY *);
96 void (*finish)(EC_KEY *);
97 /* method specific part */
98 BIGNUM *kinv; /* signing pre-calc */
99 BIGNUM *r; /* signing pre-calc */
102 const ECDSA_METHOD *meth;
103 CRYPTO_EX_DATA ex_data;
106 /* signature functions */
107 ECDSA_SIG *ECDSA_SIG_new(void);
108 void ECDSA_SIG_free(ECDSA_SIG *a);
109 int i2d_ECDSA_SIG(const ECDSA_SIG *a, unsigned char **pp);
110 ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **v, const unsigned char **pp, long length);
112 /* ECDSA_DATA functions */
113 ECDSA_DATA *ECDSA_DATA_new(void);
114 ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *);
115 void ECDSA_DATA_free(ECDSA_DATA *);
117 ECDSA_DATA *ecdsa_check(EC_KEY *);
119 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len, EC_KEY *);
120 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, ECDSA_SIG
121 *sig, EC_KEY* eckey);
123 const ECDSA_METHOD *ECDSA_OpenSSL(void);
125 void ECDSA_set_default_method(const ECDSA_METHOD *);
126 const ECDSA_METHOD *ECDSA_get_default_method(void);
127 int ECDSA_set_method(EC_KEY *, const ECDSA_METHOD *);
129 int ECDSA_size(const EC_KEY *);
130 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
132 int ECDSA_sign(int type, const unsigned char *dgst, int dgst_len,
133 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
134 int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
135 const unsigned char *sig, int sig_len, EC_KEY *eckey);
138 int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
139 *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
140 int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
141 void *ECDSA_get_ex_data(EC_KEY *d, int idx);
144 /* BEGIN ERROR CODES */
145 /* The following lines are auto generated by the script mkerr.pl. Any changes
146 * made after this point may be overwritten when the script is next run.
148 void ERR_load_ECDSA_strings(void);
150 /* Error codes for the ECDSA functions. */
152 /* Function codes. */
153 #define ECDSA_F_ECDSA_DATA_NEW 100
154 #define ECDSA_F_ECDSA_DO_SIGN 101
155 #define ECDSA_F_ECDSA_DO_VERIFY 102
156 #define ECDSA_F_ECDSA_SIGN_SETUP 103
159 #define ECDSA_R_BAD_SIGNATURE 100
160 #define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101
161 #define ECDSA_R_ERR_EC_LIB 102
162 #define ECDSA_R_MISSING_PARAMETERS 103
163 #define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104
164 #define ECDSA_R_SIGNATURE_MALLOC_FAILED 105