Each exploration in this book is a mixture of text and interactive exercises. The exercises are unlike anything you鈥檝e seen in other books. Instead of multiple choice, fill-in-the-blank, or simple Q&A exercises, lessons are interactive explorations of key C++ features.
标签： exercises exploration interactive mixture
上传时间： 2017-05-14
上传用户：whenfly
* 使用DES加密与解密,可对byte[],String类型进行加密与解密 密文可使用String,byte[]存储. * * 方法: void getKey(String strKey)从strKey的字条生成一个Key * * String getEncString(String strMing)对strMing进行加密,返回String密文 String * getDesString(String strMi)对strMin进行解密,返回String明文 * *byte[] getEncCode(byte[] byteS)byte[]型的加密 byte[] getDesCode(byte[] * byteD)byte[]型的解密
上传时间： 2014-01-13
上传用户：libinxny
Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2.one approach to improving security was to encrypt multiple letters 3.the Playfair Cipher is an example 4.invented by Charles Wheatstone in 1854,but named after his friend Baron Playfair Playfair Key Matrix 1.a 5X5 matrix of letters based on a keyword 2.fill in letters of keyword (sans duplicates) 3.fill rest of matrix with other letters Encrypting and Decrypting -plaintext is encrypted two letters at a time 1. if a pair is a repeated letter, insert filler like X’ 2. if both letters fall in the same row, replace each with letter to right (wrapping back to start from end) 3. if both letters fall in the same column, replace each with the letter below it (again wrapping to top from bottom) 4. otherwise each letter is replaced by the letter in the same row and in the column of the other letter of the pair
标签： monoalphabetic Playfair provides security
上传时间： 2017-05-25
上传用户：变形金刚
用维吉尼亚算法加密 /** * 维吉尼亚密码算法(BigDecimal)，加/解密处理后仍为BigDecimal类型，正负号和小数点不进行处理 * * @param str * 源BigDecimal * @param key * 密钥，应为数字字符组成的字符串 * @param mode * 模式（加密or解密） * @return 加/解密后的BigDecimal
标签： BigDecimal 算法 加密 密码算法
上传时间： 2013-12-23
上传用户：yyyyyyyyyy
三星程式范例，八位元的 timer, counter, serial I/O, clock switching, power down, key scan, A to D, software generated LCD control, ...
上传时间： 2013-12-17
上传用户：zhengzg
将fastreport2系列frf文件自动生成form，每一页在gen目录下自动生成一页
标签： fastreport2 form frf 自动生成
上传时间： 2017-06-05
上传用户：qq21508895
C++ by Dissection presents a thorough introduction to the programming process by carefully developing working programs to illuminate key features of the C++ programming language. Program code is explained in an easy-to-follow, careful manner throughout. The code has been tested on several platforms and is found on the bundled CDrom accompanying this text. The code in C++ By Dissection can be used with most C++ systems, including those found in operating systems such as MacOS, MS-DOS, OS/2, UNIX, and Windows.
标签： introduction programming Dissection carefully
上传时间： 2014-01-27
上传用户：thesk123
//建立窗口 win1 = newwin(15, 50, 1, 1) box(win1, ACS_VLINE, ACS_HLINE) mvwprintw(win1, 2,1, "WINDOW 1") mvwprintw(win1, 4,1, "Press any key switching to window 2") win2 = newwin(15, 40, 4, 20) box(win2, ACS_VLINE, ACS_HLINE) mvwprintw(win2, 2,1, "WINDOW 2") //建立子窗口 subwin = derwin(win2, 5, 25, 4, 5) box(subwin, ACS_VLINE, ACS_HLINE) mvwprintw(subwin, 2,1, "Sub Window of Window2") //刷新屏幕 refresh() wrefresh(win1) wrefresh(win2) touchwin(win1) wrefresh(win1) getch() touchwin(win2) mvwprintw(win2, 12,1, "Press any key to exit...") wrefresh(win2) //等待按键 getch() //结束 delwin(win1) delwin(subwin) delwin(win2) endwin()
标签： ACS_VLINE ACS_HLINE mvwprintw win
上传时间： 2017-06-12
上传用户：plsee
rs485单线程数据通讯程序，KEY键触发能使单片机之间能够通讯
上传时间： 2013-12-18
上传用户：hullow
破解 IAR 程序，解开压缩包，里面有iarkg.exe,iarkgc.exe,先运行iackgc.exe,在运行iarkg.exe,将产生的license key 和license number 拷贝到安装输入框中
上传时间： 2017-06-13
上传用户：qq1604324866
