ecdsa.h

/* crypto/ecdsa/ecdsa.h */
/* ====================================================================
 * Copyright (c) 2000-2005 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 *    distribution.
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 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
#ifndef HEADER_ECDSA_H
#define HEADER_ECDSA_H

#include <openssl/opensslconf.h>

#ifdef OPENSSL_NO_ECDSA
#error ECDSA is disabled.
#endif

#include <openssl/ec.h>
#include <openssl/ossl_typ.h>
#ifndef OPENSSL_NO_DEPRECATED
#include <openssl/bn.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef struct ECDSA_SIG_st
    {
    BIGNUM *r;
    BIGNUM *s;
    } ECDSA_SIG;

ECDSA_SIG *ECDSA_SIG_new(void);

void      ECDSA_SIG_free(ECDSA_SIG *sig);

int   i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);

ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);

ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,int dgst_len,EC_KEY *eckey);

ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, 
        const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);

int   ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
        const ECDSA_SIG *sig, EC_KEY* eckey);

const ECDSA_METHOD *ECDSA_OpenSSL(void);

void      ECDSA_set_default_method(const ECDSA_METHOD *meth);

const ECDSA_METHOD *ECDSA_get_default_method(void);

int       ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth);

int   ECDSA_size(const EC_KEY *eckey);

int       ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, 
        BIGNUM **rp);

int   ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, 
        unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);


int   ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, 
        unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv,
        const BIGNUM *rp, EC_KEY *eckey);

int       ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, 
        const unsigned char *sig, int siglen, EC_KEY *eckey);

/* the standard ex_data functions */
int       ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new 
        *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int       ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
void      *ECDSA_get_ex_data(EC_KEY *d, int idx);


/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_ECDSA_strings(void);

/* Error codes for the ECDSA functions. */

/* Function codes. */
#define ECDSA_F_ECDSA_CHECK              104
#define ECDSA_F_ECDSA_DATA_NEW_METHOD            100
#define ECDSA_F_ECDSA_DO_SIGN                101
#define ECDSA_F_ECDSA_DO_VERIFY              102
#define ECDSA_F_ECDSA_SIGN_SETUP             103

/* Reason codes. */
#define ECDSA_R_BAD_SIGNATURE                100
#define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE      101
#define ECDSA_R_ERR_EC_LIB               102
#define ECDSA_R_MISSING_PARAMETERS           103
#define ECDSA_R_NEED_NEW_SETUP_VALUES            106
#define ECDSA_R_NON_FIPS_METHOD              107
#define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED      104
#define ECDSA_R_SIGNATURE_MALLOC_FAILED          105

#ifdef  __cplusplus
}
#endif
#endif