Information sending method, an information receiving method, apparatus and system for

The present invention discloses an information transmitting method, an information receiving method, apparatus and system belongs to the field of computer technologies. Said information transmission method comprising: acquiring authentication information; authentication information into the binary sequence; correspondence between the binary optical signal, encoded as a binary sequence corresponding to the optical signal; transmitting the optical signal to the receiving apparatus, the receiving apparatus receives the optical signal, acquires the authentication information of the optical signal, information for authentication according to the authentication information; can always reach the transmission device transmitting an optical signal carrying information for authentication to the receiving device, and the authentication information of the optical signal is not easily leaked effect.