行動條碼加密機制之研究

The Study of RSA Algorithm on QR Code Design

翁仍方(Jeng-fang Weng)

指導教授 ： 謝尚琳 ； 黃有評

大同大學/電機資訊學院/資訊工程學系所/碩士(2008年)

摘要

由於二維條碼具儲存量大、製作成本低廉、抗損壞能力強等特性，使得其極具有應用發展之潛力，舉凡物流管理、訊息交換、身份識別等皆能利用二維條碼完成。近年來，台灣政府也陸續推動二維條碼相關研究與發展，國內也有越來越多的廠商將二維條碼技術實際導入應用於企業或工廠的營運並且得到不錯的效果。
二維條碼本身已具有保密及不易偽造的特性，因為無法直接解析隱藏在二維條碼內的訊息，但對於熟悉二維條碼技術的人員無法真正的有效防範，故當二維條碼需要儲存較需要受到保密的訊息時，將訊息進行資訊隱藏的動作是不可或缺的。
本論文將密碼學方法導入二維條碼技術，利用QR Code結合公開鑰匙加密機制的RSA演算法來進一步產生RSA QR Code，運用此方法不僅能將儲存於QR Code內的訊息進行隱藏，提高安全性，亦可使QR Code提供服務更多元化。當二維條碼技術應用於展覽品的解說與導覽應用時，為了避免智慧財產權的侵犯或是非法的複製，通常需要使用者利用會場提供的硬體裝置進行解碼，但使用者容易因不熟悉設備或租借手續繁雜因而降低使用意願。有鑑於此，本論文亦將RSA QR Code導入導覽系統來進行應用上的實作，利用密碼學的加解密特性，將使得解碼的訊息有所差異，根據解碼訊息的差異可用來提供不同的導覽與解說服務。結合密碼學方法的二維條碼技術，不僅具備資訊隱藏的特性，同時還可以用於提供不同層級存取服務，相信這樣的機制可以使二維條碼應用層面更為廣泛。

關鍵字

RSA演算法 ； 二維條碼 ； 導覽系統 ； 公開鑰匙加密

並列摘要

With the features of large storage capacity, low cost and anti-damage, the 2D (Two-Dimensional) barcodes have potential for developing various applications. Utilizing 2D barcodes, many applications such as logistics management, information exchange and identification can be realized. Recently, Taiwan government and industry sectors are striving to promote 2D barcodes related research. Consequently, more and more manufacturers apply 2D barcode technology to the operation of business and factories and good remuneration has been returned.
The 2D barcode has the properties of security and not easy to forge itself because the embedded information cannot be decoded directly. Nevertheless, perfect security is not guaranteed to someone who is familiar with 2D barcode technologies. Information hideaway is indispensable in storing the message in 2D barcode.
In our research, the cryptology has been integrated with 2D barcode technology. RSA algorithm of public- key cryptology has been employed into RSA QR Code to fulfill a guide system. This method can not only enhance the security of the information but also provide diversified services. While 2D barcode technology has been applied in the exhibit exposition or illustration, the intellectual property rights or illegal copy problems can be avoided. Moreover, multiple level accesses to the information can be achieved. We believe such a mechanism can make 2D barcode application more widespread.

並列關鍵字

QR Code ； Guide System ； Public-Key Cryptography ； RSA Algorithm

參考文獻

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