基于DES算二维码扫描的实现.docxVIP

基于DES算法的二维码扫描的实现 摘要：随着手机Android系统的普及和信息化水平的提高，手机二维码扫描功能在我国已经为人们广泛的认识和接受，人们的生活和工作中对于二维码的运用也越来越频繁。本文通过eclipse软件设计了一项依托于安卓手机系统之上，利用安卓手机的摄像功能和二维码编码与解码的原理，以及DES加密算法的相关知识，实现二维码生成、加密与识别、解密的系统。该项设计内容包括三块：二维码的生成、安卓系统二维码的扫描识别系统设计与数据的加密解密的实现。二维码的生成系统完成了从数据输入、加密到生成相应二维码的功能,识别系统完成对采集到的二维码符号进行译码、解密并还原出所携带信息的功能。 关键词：Android手机系统；二维码生成；二维码识别；DES加密解密 The QR Code scanning System Based on DES Jiang Dongyang Abstract: As the universe of the Android mobile phone system and the development of the informatization level, the using of the QR Code recognition’s function is more and more frequent. Through this thesis the Eclipse software designs a system which enables the QR Code generation and recognition system, on the basis of android camera, the principle of coding and handling code, and the relevant knowledge of DES. This design covers three parts: Android QR code encryption design, QR code identification system design, and mobile phone user login system design. Generating system from the function of the input data to generate the corresponding QR code, collected in recognition system to complete the QR code symbol decoding carried by deducing the function of information. Key Words：Android mobile phone system; QR Code’s Recognition; DES encryption and decryption 目 次  TOC \o 1-2 \h \z \u  HYPERLINK \l _Toc421817425 1.1 系统研究的目的和意义  PAGEREF _Toc421817425 \h  1  HYPERLINK \l _Toc421817426 1.2 国内外研究情况及背景  PAGEREF _Toc421817426 \h 1  HYPERLINK \l _Toc421817427 1.3 可行性研究  PAGEREF _Toc421817427 \h 3  HYPERLINK \l _Toc421817428 1.4 本文研究内容  PAGEREF _Toc421817428 \h 3  HYPERLINK \l _Toc421817429 2 开发相关技术介绍  PAGEREF _Toc421817429 \h 4  HYPERLINK \l _Toc421817430 2.1 Android平台介绍  PAGEREF _Toc421817430 \h 4  HYPERLINK \l _Toc421817431 2.2 开发环境的搭建  PAGEREF _Toc421817431 \h 4  HYPERLINK \l _Toc421817432 2.3 二维码的介绍  PAGEREF _Toc421817432 \h 5  HYPERLINK \l _Toc421817433 2.4 DES加密算法介绍  PAGEREF _Toc421817433 \h 7  HYPERLINK \l _Toc421817434