| 摘要 |
A system that eliminates the use and recall of multiple dedicated access cod es to verify an authorized user across multiple protected resources. Fixed acce ss codes selected by a user, or issued to a user, such as Personal Identificati on Numbers (PINs), passwords and passcodes are replaced by temporary codes that are valid only for the specific transaction in progress. A temporary code is randomly selected by the system and displayed to the user encoded within a completely filled geometric matrix along with other non-code characters. The user must recall a single, predetermined sequential pattern within said matr ix in order to obtain the access code. Once the code is obtained, or decoded fr om the matrix, the user must enter that code into the system. If the entered co de matches the transaction specific code in system memory, access to the protected resource is granted and the transaction is allowed to proceed.</SD OAB>
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