於使用唯讀式標籤之RFID系統保護被連結資訊的方法

Abstract

本研究提出的方法，包含一個「保護運算式」與對應的一個「回復運算式」；這兩個運算式都是在資訊系統上執行，可應用於使用唯讀式標籤之RFID系統中保護被連結之資訊。「保護運算式」的執行，可將「個體的識別用資料」、「連結個體之標籤的序號」、及「被授權讀取個體資訊之人員的授權碼」等三項資料轉換成一個「對應關係替代碼」，使得系統中不必記錄標籤序號與個體識別用資料之對應關係；故，僅根據標籤序號或僅根據授權碼，並無法連結到個體的識別用資料，也無法得知個體之資訊。個體的識別用資料之取得，可以使用「連結該個體之標籤的序號」、「被授權讀取該個體資訊之人員的授權碼」、及對應的「替代碼」等三項資料作為「回復運算式」之輸入，其輸出即為該個體的識別用資料；若有任一項輸入是錯誤的，就無法回復出正確的識別用資料。This study presents a ＂protected operation computation＂ corresponding to a ＂reverse operation computation＂, both performed within data systems. Using the ＂protected operations computation＂, ＂individual identifying data＂, ＂linking of individual tag serial numbers＂ and ＂access to personal information authorization codes＂ to create a ＂substitution code＂, the system needs not record the relationships between tag serial numbers and individual identifiers. Thus, since the tag serial numbers and authorization codes can't be found in the system, even if someone gains access to tag serial numbers or authorization codes only, the data can't be linked to specific individuals. Acquired personal identifier data must use ＂links to individual tag serial numbers＂, ＂access to personal information authorization codes＂ and the corresponding ＂substitution code＂ as inputs for the ＂reverse operation computation＂, resulting in output of personal identifier data. If any one or more inputs for the ＂reverse operation computation＂ are incorrect, the output will not provide personal identifier data.