凯撒密码的过程,再用配对字母取代讯息里的原始字母位移加密法(shift cipher):模数计算。Ek(x)=(x+k)mod 26,Dk(y)=(y –k)mod 26 如:k=5 “hello world”加密为:mjqqt….
上传时间: 2014-01-23
上传用户:nairui21
This preview for Phill s Big mod shows the addition of proper SUR files into the mod
标签: the addition preview proper
上传时间: 2016-06-23
上传用户:fxf126@126.com
C编译器产生的可显示机器码/汇编代码文件,其中附有源C v: v: @8 g: X& z代码作为注释 : z! [3 \) O&...UWOW Grave Composer音乐模块(mod)文件 + Q* T) \ z) R f$ a: H, iWP WordPerfect文档 H! t7 D2 |...
上传时间: 2013-12-14
上传用户:love_stanford
微芯力arm9 嵌入式Linux操作系统下的mod驱动程序源代码
上传时间: 2016-12-02
上传用户:爱死爱死
凯撒密码算法的实现 加密:c=k1*m+k2 mod 26 解密:m=k1-1(c-k2) mod 26
上传时间: 2014-11-05
上传用户:ggwz258
OpenVPN for the DSL-300T with SD/MMC mod
上传时间: 2014-01-10
上传用户:weixiao99
Filesystem for DSL-300T with MMC mod (must be extracted in the first primary partition, formatted in ext3)
标签: Filesystem extracted formatted partition
上传时间: 2013-12-16
上传用户:nanfeicui
欧几里德算法:辗转求余 原理: gcd(a,b)=gcd(b,a mod b) 当b为0时,两数的最大公约数即为a getchar()会接受前一个scanf的回车符
上传时间: 2014-01-10
上传用户:2467478207
自己编写的mod bus 协议源代码。基于keilc51开发。主要使用回调函数,协议层次清晰。仅供编程参考。
上传时间: 2013-12-31
上传用户:cc1915
首先研究CAN总线和SAE J1939协议,提出一种基于MC9S12HZ256微控制器的总线式汽车数字仪表解决方案。详细介绍SAE J1939协议的报文帧格式及应用层协议中发动机相关参数的定义,以及步进电机及其驱动和车速信号的处理方法。该数字仪表系统硬件平台由微处理器和信号采集和信息处理及显示等模块组成。软件设计部分编程实现了对CAN总线和各传感器数据的读取、处理。该系统能够实时反映车辆工况。 Abstract: In this paper,CAN bus and SAE J1939protocol are researched,and a vehicle digital instrument solution based on MC9S12HZ256MCU is proposed.The message frame format and some engine-related parameters’definition in SAE J1939application layer protocol are introduced in detail.Stepper motor and its driver,the methods of speed signal process-ing are also introduced.The hardware platform of vehicle digital instrument is composed by MCU,signal acquisition mod-ule,and signal processing and displaying module.Data receiving and processing from CAN bus and sensors are accom-plished by programming,and vehicle condition can be reflected in real-time.
上传时间: 2013-10-20
上传用户:huannan88