ecdsa.h

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/* crypto/ecdsa/ecdsa.h */
/* ====================================================================
 * Copyright (c) 2000-2003 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
 *    notice, this list of conditions and the following disclaimer.
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 *    distribution.
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 *    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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 *    "This product includes software developed by the OpenSSL Project
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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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 *a);

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

ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **v, 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_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_RANDOM_NUMBER_GENERATION_FAILED     104
#define ECDSA_R_SIGNATURE_MALLOC_FAILED          105

#ifdef  __cplusplus
}
#endif
#endif