Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种，被美国NIST作为DSS(DigitalSig...

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系统前台利用可视化开发工具设计用户界面，使用ADO.NET（可选ODBC等）数据引擎来访问由Oracle设计的后台数据库。系统涵盖了用户注册、修改用户注册信息，添加数据、修改数据、删除数据等多项对数据库中数据的常规操作，系统还涉及对视图、索引、触发器等数据库对象的创建、管理以及维护等操作，以及利用PL/SQL语言进行程序设计、利用存储过程、系统函数完成数据库的高级操作。 本系统较为复杂，为了实现这一目标，把此项目分解成如下几个小项目，最后的作品分阶段作为平时成绩考核的依据之一。 -prospects system using visualization tools, user interface design, use ADO.NET (Optional ODBC) data engine to visit from the background of Oracle Database Design . System covers registered users, modifying user registration information, add data, change data, delete data on the number of database data conventional operation, the system will relate to view, index, Trigger database objects such as the creation, management and maintenance operations, and the use of PL/SQL programming language, the use of stored procedures, completed database system function senior operations. The more complex the system, in order to achieve this goal, the project is divided into the following several small projects. Finally works peacetime achievements in phases

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清理工具PS2键盘驱动程序，单向的，只能由键盘发向控制器，控制器读键盘。使用codevision编译器，控制器使用AVR mega16-Clean-up tool for PS2 keyboard driver, one-way, can only be sent to the controller keyboard, controller keyboard time. Codevision compiler to use the controller to use AVR mega16

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