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 #include <openssl/opensslconf.h>
60 #ifdef OPENSSL_NO_ECDSA
61 #error ECDSA is disabled.
64 #include <openssl/bn.h>
65 #include <openssl/ec.h>
66 #include <openssl/ossl_typ.h>
72 typedef struct ECDSA_SIG_st
78 typedef struct ecdsa_method
81 ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len,
83 int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
85 int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
86 ECDSA_SIG *sig, EC_KEY *eckey);
88 int (*init)(EC_KEY *eckey);
89 int (*finish)(EC_KEY *eckey);
95 typedef struct ecdsa_data_st {
96 /* EC_KEY_METH_DATA part */
97 int (*init)(EC_KEY *);
98 void (*finish)(EC_KEY *);
99 /* method specific part */
100 BIGNUM *kinv; /* signing pre-calc */
101 BIGNUM *r; /* signing pre-calc */
104 const ECDSA_METHOD *meth;
105 CRYPTO_EX_DATA ex_data;
108 /* signature functions */
109 ECDSA_SIG *ECDSA_SIG_new(void);
110 void ECDSA_SIG_free(ECDSA_SIG *a);
111 int i2d_ECDSA_SIG(const ECDSA_SIG *a, unsigned char **pp);
112 ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **v, const unsigned char **pp, long length);
114 /* ECDSA_DATA functions */
115 ECDSA_DATA *ECDSA_DATA_new(void);
116 ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *);
117 void ECDSA_DATA_free(ECDSA_DATA *);
119 ECDSA_DATA *ecdsa_check(EC_KEY *);
121 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len, EC_KEY *);
122 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, ECDSA_SIG
123 *sig, EC_KEY* eckey);
125 const ECDSA_METHOD *ECDSA_OpenSSL(void);
127 void ECDSA_set_default_method(const ECDSA_METHOD *);
128 const ECDSA_METHOD *ECDSA_get_default_method(void);
129 int ECDSA_set_method(EC_KEY *, const ECDSA_METHOD *);
131 int ECDSA_size(const EC_KEY *);
132 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
134 int ECDSA_sign(int type, const unsigned char *dgst, int dgst_len,
135 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
136 int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
137 const unsigned char *sig, int sig_len, EC_KEY *eckey);
140 int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
141 *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
142 int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
143 void *ECDSA_get_ex_data(EC_KEY *d, int idx);
146 /* BEGIN ERROR CODES */
147 /* The following lines are auto generated by the script mkerr.pl. Any changes
148 * made after this point may be overwritten when the script is next run.
150 void ERR_load_ECDSA_strings(void);
152 /* Error codes for the ECDSA functions. */
154 /* Function codes. */
155 #define ECDSA_F_ECDSA_DATA_NEW 100
156 #define ECDSA_F_ECDSA_DO_SIGN 101
157 #define ECDSA_F_ECDSA_DO_VERIFY 102
158 #define ECDSA_F_ECDSA_SIGN_SETUP 103
161 #define ECDSA_R_BAD_SIGNATURE 100
162 #define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101
163 #define ECDSA_R_ERR_EC_LIB 102
164 #define ECDSA_R_MISSING_PARAMETERS 103
165 #define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104
166 #define ECDSA_R_SIGNATURE_MALLOC_FAILED 105