secp256k1_ecdh.h

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#ifndef SECP256K1_ECDH_H
#define SECP256K1_ECDH_H
 
#include "secp256k1.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef int (*secp256k1_ecdh_hash_function)(
  unsigned char *output,
  const unsigned char *x32,
  const unsigned char *y32,
  void *data
);

SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256;

SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default;

SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh(
  const secp256k1_context *ctx,
  unsigned char *output,
  const secp256k1_pubkey *pubkey,
  const unsigned char *seckey,
  secp256k1_ecdh_hash_function hashfp,
  void *data
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);
 
#ifdef __cplusplus
}
#endif
 
#endif /* SECP256K1_ECDH_H */