| 摘要 |
A method of establishing a communication channel between a first device and a second device via at least one intermediate device. The method comprises, at the first device generating an offer data packet comprising an address of the second device, the address of the second device comprising a first identifier indicating a public key associated with the second device; transmitting the offer data packet to a first intermediate device for transmission to the second device based upon the address of the second device included in the offer data packet, receiving an answer data packet via the first intermediate device, the answer data packet comprising network information associated with the second device, establishing a communication channel with the second device based on the network information received in the answer data packet, receiving over the communication channel a first handshake data packet comprising a public key, calculating a second identifier based upon the public key within the first handshake data packet and comparing the first identifier with the second identifier; and providing a warning if a relationship between the first identifier and the second identifier is not an expected relationship. |
