from ctypes import create_string_buffer,c_char_p,c_void_p,c_int,c_long,byref,POINTER
from ctypescrypto import libcrypto
from ctypescrypto.exception import LibCryptoError
from ctypes import create_string_buffer,c_char_p,c_void_p,c_int,c_long,byref,POINTER
from ctypescrypto import libcrypto
from ctypescrypto.exception import LibCryptoError