def decodeDustPacket(self, key, packet):
self.key=key
self.packet=packet
self.ciphertext=self.payload
self.encrypted=self.ciphertext
self.payload=decrypt(self.key, self.iv, self.encrypted)
self.data=self.payload
self.ciphertext=self.data
def decodeDustPacket(self, key, packet):
self.key=key
self.packet=packet
self.mac, self.ciphertext=splitField(self.packet, MAC_SIZE)
self.iv, self.encrypted=splitField(self.ciphertext, IV_SIZE)
self.payload=decrypt(self.key, self.iv, self.encrypted)
self.timestamp, self.dataLength, self.paddingLength, self.data=splitFields(self.payload, [TIMESTAMP_SIZE, DATA_LENGTH_SIZE, PADDING_LENGTH_SIZE])
self.timestamp=struct.unpack("I", self.timestamp)[0]
self.dataLength=struct.unpack("H", self.dataLength)[0]
self.paddingLength=struct.unpack("B", self.paddingLength)[0]
self.data, extra=splitField(self.data, self.dataLength)
payloadLength=TIMESTAMP_SIZE+DATA_LENGTH_SIZE+PADDING_LENGTH_SIZE+len(self.data)
self.payload=self.payload[:payloadLength]
ciphertextLength=IV_SIZE+payloadLength
self.ciphertext=self.ciphertext[:ciphertextLength]
realPacketLength=MAC_SIZE+ciphertextLength+self.paddingLength
if len(packet)>realPacketLength:
self.remaining=packet[realPacketLength:]
def decodeDustPacket(self, key, packet):
self.key=key
self.packet=packet
self.mac, self.ciphertext=splitField(self.packet, MAC_SIZE)
self.iv, self.encrypted=splitField(self.ciphertext, IV_SIZE)
self.payload=decrypt(self.key, self.iv, self.encrypted)
self.timestamp, self.dataLength, self.paddingLength, self.data=splitFields(self.payload, [TIMESTAMP_SIZE, DATA_LENGTH_SIZE, PADDING_LENGTH_SIZE])
self.timestamp=struct.unpack("I", self.timestamp)[0]
self.dataLength=struct.unpack("H", self.dataLength)[0]
self.paddingLength=struct.unpack("B", self.paddingLength)[0]
self.data, extra=splitField(self.data, self.dataLength)
payloadLength=TIMESTAMP_SIZE+DATA_LENGTH_SIZE+PADDING_LENGTH_SIZE+len(self.data)
self.payload=self.payload[:payloadLength]
ciphertextLength=IV_SIZE+payloadLength
self.ciphertext=self.ciphertext[:ciphertextLength]
realPacketLength=MAC_SIZE+ciphertextLength+self.paddingLength
if len(packet)>realPacketLength:
self.remaining=packet[realPacketLength:]