secp256k1.secp256k1_ec_pubkey_tweak_mul.argtypes = [c_void_p, | 🎩BLACK HAT🎩

secp256k1.secp256k1_ec_pubkey_tweak_mul.argtypes = [c_void_p, c_char_p, c_char_p]
secp256k1.secp256k1_ec_pubkey_tweak_mul.restype = c_int

secp256k1.secp256k1_ec_pubkey_combine.argtypes = [c_void_p, c_char_p, c_void_p, c_size_t]
secp256k1.secp256k1_ec_pubkey_combine.restype = c_int

# --enable-module-recovery
try:
secp256k1.secp256k1_ecdsa_recover.argtypes = [c_void_p, c_char_p, c_char_p, c_char_p]
secp256k1.secp256k1_ecdsa_recover.restype = c_int

secp256k1.secp256k1_ecdsa_recoverable_signature_parse_compact.argtypes = [c_void_p, c_char_p, c_char_p, c_int]
secp256k1.secp256k1_ecdsa_recoverable_signature_parse_compact.restype = c_int
except (OSError, AttributeError):
raise LibModuleMissing('libsecp256k1 library found but it was built '
'without required module (--enable-module-recovery)')

secp256k1.ctx = secp256k1.secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY)
ret = secp256k1.secp256k1_context_randomize(secp256k1.ctx, os.urandom(32))
if not ret:
print('secp256k1_context_randomize failed')
return None

return secp256k1
except (OSError, AttributeError) as e:
print(f'libsecp256k1 library was found and loaded but there was an error when using it: {repr(e)}')
return None


_libsecp256k1 = None
try:
_libsecp256k1 = load_library()
except BaseException as e:
print(f'failed to load libsecp256k1: {repr(e)}')


if _libsecp256k1 is None:
# hard fail:
sys.exit(f"Error: Failed to load libsecp256k1.")