ecdsa.h

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#ifndef POLARSSL_ECDSA_H
#define POLARSSL_ECDSA_H

#include "ecp.h"

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 );

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 );

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

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