def load_public_key(self, from_private=False):
"""
Loads public key from path.
Returns:
True on success, False otherwise
"""
if self.path == '' or self.suffix == '':
return False
file_path = self.path + '/public_%s.pem' % self.suffix
p_file = _libc.fopen(ctypes.c_char_p(file_path.encode('utf-8')),
ctypes.c_char_p(b'r'))
_ssl.PEM_read_RSAPublicKey(p_file, ctypes.byref(self.key), None, None)
# Cleanup
_libc.fclose(p_file)
# Turn on blinding
if not from_private and _ssl.RSA_blinding_on(self.key, None) != 1:
logging.debug('Failed to turn on blinding for RSA key')
return False
self.size = _ssl.RSA_size(self.key)
self.bn_n = self._get_mod()
return True
def generate(self, bits):
"""
Generate RSA key of size bits.
Args:
bits (int): The size of the key. Has to be divisible by 8.
Returns:
True on success, False otherwise
"""
if bits % 8 != 0:
return False
if _ssl.RSA_generate_key_ex(self.key, bits, self.bn_e, None) != 1:
logging.debug("Failed to generate rsa Key")
return False
self.size = _ssl.RSA_size(self.key)
self._get_mod()
self.is_private = True
return True