本文選題：數(shù)字簽名　切入點：地稅　出處：《湖南大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：地稅網(wǎng)絡(luò)發(fā)票系統(tǒng)是一種擁有系統(tǒng)管理、地稅數(shù)字化票據(jù)管理、客戶管理、地稅數(shù)字化票據(jù)信息監(jiān)控管理等眾多功能的地稅控制管理平臺。在稅收現(xiàn)代化管理的過程中,采用數(shù)字化地稅發(fā)票可提高用戶發(fā)票認領(lǐng)、發(fā)票使用的便捷性,同時也可以加強地稅機關(guān)對地稅發(fā)票的有效管理。論文按照軟件工程過程管理方法,從需求分析開始,描述了企業(yè)數(shù)字簽名(印章)簽發(fā)資格認定、地稅數(shù)字化票據(jù)領(lǐng)購、地稅數(shù)字化票據(jù)開具等總體業(yè)務(wù)邏輯,在需求分析基礎(chǔ)上,開展系統(tǒng)總體設(shè)計和實現(xiàn);最后以企業(yè)數(shù)字簽名(印章)簽發(fā)資格認定、地稅數(shù)字化票據(jù)領(lǐng)購、地稅數(shù)字化票據(jù)開具這三個重要功能為例對系統(tǒng)性能進行了全面測試。論文首先闡述了網(wǎng)絡(luò)發(fā)票系統(tǒng)開發(fā)的項目背景,對國內(nèi)外有關(guān)電子稅票、網(wǎng)絡(luò)發(fā)票和系統(tǒng)開發(fā)相關(guān)的研究進行分析,為系統(tǒng)的開發(fā)提供理論依據(jù),其次,對本系統(tǒng)開發(fā)所使用的相關(guān)技術(shù)進行了描述,為系統(tǒng)的開發(fā)提供技術(shù)支持。論文提出了面向互聯(lián)網(wǎng)特征的需求分析,通過網(wǎng)絡(luò)發(fā)票系統(tǒng)需求分析確定,系統(tǒng)功能包括:購票資格申請、開票資格申請、發(fā)票核定申請、系統(tǒng)管理、發(fā)票真?zhèn)尾樵�、在線發(fā)票工具、資格審批、信息發(fā)布和查詢統(tǒng)計。遵照軟件工程開發(fā)設(shè)計原則,對網(wǎng)絡(luò)發(fā)票系統(tǒng)進行設(shè)計,包括:系統(tǒng)結(jié)構(gòu)設(shè)計、軟件架構(gòu)設(shè)計、IPO圖設(shè)計,為了保證系統(tǒng)的安全性,進行了數(shù)字簽名對MD5算法的抗攻擊改進,分別對消息預(yù)處理和步函數(shù)進行改進,完成系統(tǒng)各個功能模塊的設(shè)計和數(shù)據(jù)庫的設(shè)計。地稅網(wǎng)絡(luò)發(fā)票系統(tǒng)由外網(wǎng)系統(tǒng)、內(nèi)網(wǎng)系統(tǒng)和內(nèi)外網(wǎng)數(shù)據(jù)交換系統(tǒng)三部分組成,外網(wǎng)系統(tǒng)直接面向終端用戶,依托外部門戶網(wǎng)站,以WEB方式基于J2EE的地稅網(wǎng)絡(luò)發(fā)票系統(tǒng)給企業(yè)提供了一個網(wǎng)上辦稅的電子化平臺。進行系統(tǒng)的實現(xiàn)與測試和算法改進前后的效果比較,驗證本系統(tǒng)的可行性和先進性。內(nèi)網(wǎng)系統(tǒng)面向地稅系統(tǒng)內(nèi)部工作人員,通過桌面平臺與終端用戶交流,為保證系統(tǒng)安全,內(nèi)、外網(wǎng)通過防火墻和網(wǎng)閘進行隔離,終端用戶通過受理服務(wù)器登錄系統(tǒng)進行業(yè)務(wù)操作,數(shù)據(jù)保存在防火墻內(nèi)的數(shù)據(jù)庫中,通過網(wǎng)閘與內(nèi)網(wǎng)的征管系統(tǒng)數(shù)據(jù)庫進行數(shù)據(jù)交換。測試結(jié)果表明,系統(tǒng)滿足了功能和性能要求。
[Abstract]:The local tax network invoice system is a kind of land tax control management platform with many functions, such as system management, local tax digital bill management, customer management, local tax digital bill information monitoring and management and so on. The adoption of digital local tax invoices can improve the convenience of the user's invoices and the use of invoices. At the same time, it can also strengthen the effective management of local tax invoices by local tax authorities. In accordance with the method of software engineering process management, the paper begins with demand analysis. This paper describes the overall business logic of enterprise digital signature (seal) issuing qualification, local tax digital bill purchase, local tax digital bill issuance and so on. On the basis of demand analysis, the system overall design and implementation are carried out. Finally, the enterprise's digital signature (seal) is used to issue the qualification, and the local tax digital bill is purchased, The three important functions of issuing local tax digital bill are taken as an example to test the system performance. Firstly, the paper expounds the project background of the development of network invoice system, and introduces the electronic tax bill at home and abroad. The related research of network invoice and system development is analyzed to provide the theoretical basis for the development of the system. Secondly, the related technologies used in the development of this system are described. To provide technical support for the development of the system. This paper proposes a demand analysis based on Internet features, which is determined by the requirement analysis of the network invoice system. The functions of the system include: ticket purchase qualification application, ticketing qualification application, invoice approval application, etc. System management, invoice authenticity query, online invoice tools, qualification examination and approval, information release and query statistics. In accordance with the principles of software engineering development and design, the design of network invoice system, including: system structure design, In order to ensure the security of the system, the digital signature is improved against the attack of MD5 algorithm, and the message preprocessing and step function are improved, respectively, in order to ensure the security of the system. The local tax network invoice system consists of three parts: the extranet system, the intranet system and the intranet data exchange system. The extranet system is directly oriented to the end users and relies on the external portal. The land tax network invoice system based on WEB based on J2EE provides an electronic platform for enterprises to do tax on the net. The system is implemented, tested and compared with the effect before and after the algorithm improvement. To verify the feasibility and advanced nature of the system. The intranet system is designed for the internal staff of the local tax system and communicates with the end users through the desktop platform. In order to ensure the security of the system, the inner and outer networks are isolated through firewalls and gates. The end user uses the receiving server to log on to the system for business operation, the data is stored in the database inside the firewall, and the data is exchanged with the database of the collection and management system of the inner network through the network gate. The test results show that, The system meets the requirements of function and performance.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TP311.52

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