Wireless mouse and data transmission method thereof

A data transmission method for a wireless mouse, the wireless mouse comprising a mouse body and a wireless receiver, the mouse body being operable by a user, the wireless receiver being connected with a computer host, the data transmission method comprising steps of:

• (a) storing a fixed password table in the mouse body and a fixed password table in the wireless receiver;
• (b) generating a pairing identification code during a process of pairing the mouse body with the wireless receiver;
• (c) generating a random password table by the mouse body according to the pairing identification code and the fixed password table in the mouse body, and generating a random password table in the wireless receiver;
• (d) encrypting an original information according to the fixed password table in the mouse body and the random password table generated by the mouse body, so that the original information is converted into an encryption information, wherein when the mouse body is operated by the user, the original information is generated, wherein the encryption information contains the encrypted original information and a cyclic redundancy check code;
• and
• (e) receiving the encryption information, and decrypting the encryption information according to the fixed password table in the wireless receiver, the random password table generated by the wireless receiver and the cyclic redundancy check code, so that the encryption information is restored to the original information.