管理信息系統(tǒng)中的加密解密技術(shù)應(yīng)用(含外文翻譯)畢業(yè)論文(已修改)
2025-07-02 00:15 本頁面
【正文】 XX大學(xué)畢業(yè)論文管理信息系統(tǒng)中的加密/解密技術(shù)應(yīng)用系 （部）： 專 業(yè)： 通信工程 學(xué) 號： 學(xué)生姓名： 指導(dǎo)教師： 年 月摘 要信息技術(shù)的飛速發(fā)展，使人們的生活面貌發(fā)生了很大的變化，同時信息技術(shù)也促進(jìn)了社會的發(fā)展。在計算機(jī)網(wǎng)絡(luò)深入普及的信息時代，信息本身就是時間，就是財富。如何保護(hù)信息的安全使之不被竊取及不至于被篡改或破壞，已成為當(dāng)今普遍關(guān)注的重大問題。密碼是有效且可行的辦法。本論文主要是介紹了系統(tǒng)加密以及一個小程序，從密鑰生成、DES加密原理、DES解密原理三方面闡述了DES算法的整個過程。并在此基礎(chǔ)上，在windows環(huán)境下，利用java實(shí)現(xiàn)DES加密與解密算法，以窗體界面方式完成一個本地的系統(tǒng)加解密演示器。本論文共分為五部分。第一章從現(xiàn)代電子技術(shù)的發(fā)展揭示密碼學(xué)在科學(xué)領(lǐng)域中的重要性，從而說明選此課題作為畢業(yè)設(shè)計的原因。第二章講述了密碼學(xué)的基礎(chǔ)知識。第三章是本文的重點(diǎn)，以DES歷史回顧為起點(diǎn)，逐一揭示DES算法原理，并按密鑰生成、DES加密、DES解密的次序。第四章對DES安全性分析與工作模式進(jìn)行簡要的介紹。第五章說明DES加/解密算法的系統(tǒng)設(shè)計思路，以及其具體實(shí)現(xiàn)方法。關(guān)鍵詞:信息安全，密鑰，DES，加密，解密 ABSTRACTThe information technology rapid development, caused people’s life appearance to have the very big change, simultaneously the information technology also promoted society development. In the puter network thorough popularization information time, information itself is the time, is the wealth. How protects the information security to cause it not to be stole and as for not to tamper with or destruction, has bee the major issue which now generally pays attention . The password is useful and effectible method. This article mainly introduces the DES encryption and decipher algorithm java language realization, three aspects elaborated from key fresh、the encryption principle DES、the decryption principle DES algorithm entire has worked. And in this foundation, in windows environment, realizes the encryption and decryption algorithm using java, pletes a local document by the window contact surface way to add the decipher demonstration.The article divides into five to blow. First chapter promulgates cryptology from the modern electronic technology development to be important in scientific domain, thus explained chooses this topic to take the graduation project originally. Second chapter narrated the cryptology elementary knowledge. Third chapter is this article key point, take narrates the DES history as the beginning, explain the DES algorithm principle, meanwhile how to make the encryption key、encrypts the DES、decrypts the DES as the line. Fourth chapter makes the simple introduction to the window contact surface, explain the working process of the decipher demonstration and the DES working pattern. The fifth chapter explained that DES adds/the decipher algorithm system design mentality, as well as it realizes the method specifically.
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