| 摘要 |
A method and apparatus for accepting an access request from a client computer connected to a server computer through a network including receiving the access request for the server computer from the client computer, generating a predetermined number of random characters to form a string in the server computer in response to the access request, forming a decoy string of characters different than said riddle and an answer corresponding to said riddle, placing the riddle on the display of an output device of the client computer, placing the decoy string and the answer on buttons or a list menu of a display of an output device of the client computer, and determining if the answer to the riddle is correct.
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