secp256k1.h

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#ifndef _SECP256K1_
# define _SECP256K1_
 
# ifdef __cplusplus
extern "C" {
# endif
 
# if !defined(SECP256K1_GNUC_PREREQ)
#  if defined(__GNUC__)&&defined(__GNUC_MINOR__)
#   define SECP256K1_GNUC_PREREQ(_maj,_min) \
 ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min))
#  else
#   define SECP256K1_GNUC_PREREQ(_maj,_min) 0
#  endif
# endif
 
# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
#  if SECP256K1_GNUC_PREREQ(2,7)
#   define SECP256K1_INLINE __inline__
#  elif (defined(_MSC_VER))
#   define SECP256K1_INLINE __inline
#  else
#   define SECP256K1_INLINE
#  endif
# else
#  define SECP256K1_INLINE inline
# endif
 
# if defined(__GNUC__) && SECP256K1_GNUC_PREREQ(3, 4)
#  define SECP256K1_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
# else
#  define SECP256K1_WARN_UNUSED_RESULT
# endif
# if !defined(SECP256K1_BUILD) && defined(__GNUC__) && SECP256K1_GNUC_PREREQ(3, 4)
#  define SECP256K1_ARG_NONNULL(_x)  __attribute__ ((__nonnull__(_x)))
# else
#  define SECP256K1_ARG_NONNULL(_x)
# endif
 
 
# define SECP256K1_START_VERIFY (1 << 0)
# define SECP256K1_START_SIGN   (1 << 1)
 
void secp256k1_start(unsigned int flags);
 
void secp256k1_stop(void);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify(
  const unsigned char *msg,
  int msglen,
  const unsigned char *sig,
  int siglen,
  const unsigned char *pubkey,
  int pubkeylen
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_sign(
  const unsigned char *msg,
  int msglen,
  unsigned char *sig,
  int *siglen,
  const unsigned char *seckey,
  const unsigned char *nonce
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(6);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_sign_compact(
  const unsigned char *msg,
  int msglen,
  unsigned char *sig64,
  const unsigned char *seckey,
  const unsigned char *nonce,
  int *recid
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover_compact(
  const unsigned char *msg,
  int msglen,
  const unsigned char *sig64,
  unsigned char *pubkey,
  int *pubkeylen,
  int compressed,
  int recid
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_verify(const unsigned char *seckey) SECP256K1_ARG_NONNULL(1);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_verify(const unsigned char *pubkey, int pubkeylen) SECP256K1_ARG_NONNULL(1);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create(
  unsigned char *pubkey,
  int *pubkeylen,
  const unsigned char *seckey,
  int compressed
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_decompress(
  unsigned char *pubkey,
  int *pubkeylen
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_export(
  const unsigned char *seckey,
  unsigned char *privkey,
  int *privkeylen,
  int compressed
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_import(
  unsigned char *seckey,
  const unsigned char *privkey,
  int privkeylen
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add(
  unsigned char *seckey,
  const unsigned char *tweak
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add(
  unsigned char *pubkey,
  int pubkeylen,
  const unsigned char *tweak
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul(
  unsigned char *seckey,
  const unsigned char *tweak
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul(
  unsigned char *pubkey,
  int pubkeylen,
  const unsigned char *tweak
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3);
 
# ifdef __cplusplus
}
# endif
 
#endif