ecdsa.h

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#ifndef POLARSSL_ECDSA_H
#define POLARSSL_ECDSA_H
 
#include "ecp.h"
 
#if defined(POLARSSL_ECDSA_DETERMINISTIC)
#include "md.h"
#endif
 
typedef struct
{
    ecp_group grp;      
    mpi d;              
    ecp_point Q;        
    mpi r;              
    mpi s;              
}
ecdsa_context;
 
#ifdef __cplusplus
extern "C" {
#endif
 
int ecdsa_sign( ecp_group *grp, mpi *r, mpi *s,
                const mpi *d, const unsigned char *buf, size_t blen,
                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
 
#if defined(POLARSSL_ECDSA_DETERMINISTIC)
int ecdsa_sign_det( ecp_group *grp, mpi *r, mpi *s,
                    const mpi *d, const unsigned char *buf, size_t blen,
                    md_type_t md_alg );
#endif /* POLARSSL_ECDSA_DETERMINISTIC */
 
int ecdsa_verify( ecp_group *grp,
                  const unsigned char *buf, size_t blen,
                  const ecp_point *Q, const mpi *r, const mpi *s);
 
int ecdsa_write_signature( ecdsa_context *ctx,
                           const unsigned char *hash, size_t hlen,
                           unsigned char *sig, size_t *slen,
                           int (*f_rng)(void *, unsigned char *, size_t),
                           void *p_rng );
 
#if defined(POLARSSL_ECDSA_DETERMINISTIC)
int ecdsa_write_signature_det( ecdsa_context *ctx,
                               const unsigned char *hash, size_t hlen,
                               unsigned char *sig, size_t *slen,
                               md_type_t md_alg );
#endif /* POLARSSL_ECDSA_DETERMINISTIC */
 
int ecdsa_read_signature( ecdsa_context *ctx,
                          const unsigned char *hash, size_t hlen,
                          const unsigned char *sig, size_t slen );
 
int ecdsa_genkey( ecdsa_context *ctx, ecp_group_id gid,
                  int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
 
int ecdsa_from_keypair( ecdsa_context *ctx, const ecp_keypair *key );
 
void ecdsa_init( ecdsa_context *ctx );
 
void ecdsa_free( ecdsa_context *ctx );
 
int ecdsa_self_test( int verbose );
 
#ifdef __cplusplus
}
#endif
 
#endif /* ecdsa.h */