def create_cert(master_sk, signer_pk, cert_start, cert_stop):
assert int(time.time()) < cert_start < cert_stop, 'wrong time setting of cert.'
master_ecc = Encryption()
master_ecc.sk = master_sk
cert_raw = bjson.dumps((master_ecc.pk, signer_pk, cert_start, cert_stop), compress=False)
cert = {
'master': master_ecc.pk,
'start': cert_start,
'stop': cert_stop,
'sign': master_ecc.sign(cert_raw, encode='hex')}
return cert
def remove_file_by_master(self, signer_sk, cert, file_hash):
file_hash = file_hash.lower()
file_path = os.path.join(V.DATA_PATH, 'file.' + file_hash + '.dat')
uuid = random.randint(10, 99999999)
signer_ecc = Encryption()
signer_ecc.sk = signer_sk
try:
os.remove(file_path)
sign_raw = bjson.dumps((file_hash, uuid), compress=False)
send_data = {
'signer': signer_ecc.pk,
'sign': signer_ecc.sign(msg=sign_raw, encode='hex'),
'cert': cert}
dummy, result = self.send_command(ClientCmd.FILE_DELETE, send_data, uuid=uuid)
logging.debug("File delete success.")
except:
logging.debug("Failed delete file.")
pass