def run(self):
try:
# Logger.log("Encrypting focus : page = " + str(self.page) + " count = " + str(self.count) + " guid = " + str(int(m.hexdigest(), 16)))
m = hashlib.md5()
m.update((self.fileName + ":" + str(self.page) + ":" +
str(self.count)).encode('utf-8'))
getChord = self.chord.locateSuccessor(int(m.hexdigest(), 16), True)
#Check to make sure the file guid is located in the respective node.
if getChord.guid == self.chord.guid:
# Logger.printLog("Encrypt page = " + str(self.page) + " count = " + str(self.count) + " guid = " + str(int(m.hexdigest(), 16)))
#No need for chain encryption if count is a total of 1, if it's greater then it'll do a chain encryption
if self.count == 1:
# Logger.log("page = " + str(self.page) + " count = initial")
RSACipher, cipherText, IV, tag = Encryptor.initialize(
self.data)
else:
# Logger.log("page = " + str(self.page) + " count =" + str(count))
for y in self.chord.keychain:
if y["Chord"] == self.prevKey:
for x in self.chainEncryption:
if x["Set"] == self.count - 1:
RSACipher, cipherText, IV, tag = Encryptor.chainInitialize(
b64decode(x["RSACipher"]),
b64decode(self.data),
b64decode(x["IV"]),
b64decode(x["Tag"]), y["Key"])
self.chainEncryption.append({
'Set': self.count,
'RSACipher': RSACipher,
'IV': IV,
'Tag': tag
})
#If the encryption happens the MAX_CHAIN_ENCRPYTION amount of times, then it will be finished, else it will chainEncrpyt again
if self.count == constant.MAX_CHAIN_ENCRYPTION:
tokenHash = hashlib.md5()
combo = str(int(m.hexdigest(), 16)) + ":" + str(self.token)
tokenHash.update(combo.encode('utf-8'))
getChord.createPage(cipherText, int(int(m.hexdigest(),
16)),
int(tokenHash.hexdigest(), 16),
self.chainEncryption)
else:
getChord.chainEncrypt(self.fileName, cipherText,
self.count + 1, self.chainEncryption,
self.page, self.token,
self.chord._guid)
else:
getChord.chainEncrypt(self.fileName, self.data, self.count,
self.chainEncryption, self.page,
self.token, self.prevKey)
except Exception as e:
print(str(e))
