When a user wants to use an electronic product, such as a handset having an Internet-access function, to gain wireless access to the Internet, a long string of codes must be manually inputted, such as Wired Equivalent Privacy keys (WEP Keys), to register with an access point so as to be able to use the access point to activate the Internet-access function in an encrypted and protected environment. The purpose of inputting the codes is to activate the encryption mechanism so that hacker attacks or data interception can be avoided when the user accesses the Internet wirelessly.
When the user holding the electronic product moves to an area covered by another access point, the user must register with the new access point. That is, another long string of codes must be inputted in order to activate the Internet-access function through the access point. Therefore, the conventional security authentication mechanism not only requires the user to be familiar with the codes of every access point, the user also needs to input the codes manually, thereby resulting in great inconvenience in use.
For a moving user, he/she may cross areas covered by several access points during the moving process, and may need to input a long string of specific codes upon switching to a new access point. Therefore, some access point administrators set the codes of the access points administered thereby to be the same or even disable the code settings of such access points so that users no longer need to input specific codes in order to minimize user inconvenience. However, regardless of whether the encryption mechanism is disabled or the access points are set to have the same codes, these are passive methods of handling the above problem, and may result in hacker attacks which will expose users to danger when accessing the Internet wirelessly.