The literature of cryptography has a curious history. Secrecy, of course, has always played a central role, but until the First World War, important developments appeared in print in a more or less timely fashion and the field moved forward in much the same way as other specialized disciplines. As late as 1918, one of the most influential cryptanalytic papers of the twentieth century, William F. Friedman’s monograph The Index of Coincidence and Its Applications in Cryptography, appeared as a research report of the private Riverbank Laboratories [577]. And this, despite the fact that the work had been done as part of the war effort. In the same year Edward H. Hebern of Oakland, California filed the first patent for a rotor machine [710], the device destined to be a mainstay of military cryptography for nearly 50 years.
標簽： cryptography literature has Secrecy
上傳時間： 2016-12-08
上傳用戶：fxf126@126.com
本人大二學習匯編語言程序設計時的全部源代碼，均已經編譯通過生成可執行文件，每個目錄是一個程序。希望對學習匯編語言的同志有所幫助。-my sophomore year learning assembly language programming at all the source code, have already generated by compiler executable files, each directory is a process. Want to learn assembly language comrades help.
上傳時間： 2013-12-17
上傳用戶：zmy123
(1)設計一個人事管理的People(人員)類.考慮到通用性,這里只抽象出所有類型人員都具有的屬性:name(姓名),number(編號), sex(性別),birthday(出生日期),id(身份證號)等等.其中"出生日期"定義為一個"日期"類(具有屬性:year(年),month (月),date(日)內嵌子對象.用成員函數實現對人員信息的錄入和顯示等必要功能操作(自己獨立思考設計).要求包括:構造函數和析構函數,拷貝構造 函數,內聯成員函數. (2)從People(人員)類派生出student(學生）類，添加屬性：班號char chassNO［７］；從People類派生出teacher（教師）類，添加屬性：職務char principalship［１１］，部門char department［２１］．從student類中派生出graduate（研究生）類，添加屬性：專業char subject［２１］，導師teacher adviser（為（教師類內嵌子對象）；從graduate類和teacher類派生出ＴＡ（助教生）類，注意虛基類的使用，重載相應的成員函數． （３）對People類重載＂＝＝＂運算符和＂＝＂運算符，＂＝＝＂運算符判斷兩個People類對象的id屬性是否相等；＂＝＂運算符實現People類對象的賦值操作． （４）定義一個對People類對象數組按編號排序的函數，一個按編號查找people對象的函數．
標簽： birthday People number name
上傳時間： 2014-01-17
上傳用戶：GHF
The Vim editor (or Vi IMproved) was first released by Bram Moolenaar in November 1991 as a clone of the Unix editor vi for the Amiga platform. The first release of Vim for the Unix platform was out a year later and right away, it started to become an alternative to the vi editor.
標簽： Moolenaar IMproved November released
上傳時間： 2017-02-11
上傳用戶：hoperingcong
The second edition of WiMax Operator鈥檚 Manual includes most of the material from the first edition, plus new discussions of 鈥?The ultra-high-speed mobile telephone standard, HSDPA 鈥?Ultrawideband (UWB) 鈥?Changes to DSL technologies 鈥?Mobile voice 鈥?Mobile entertainment 鈥?New backup systems The new edition also reflects the changes that have occurred in the industry over the last year and half, including the emergence of restandards wireless broadband equipment with fully developed mobile capabilities, ignificant alterations in the competitive landscape, and he opening of valuable new spectrum for roadband wireless operators.
標簽： edition the Operator includes
上傳時間： 2014-01-02
上傳用戶：xiaodu1124
Maya Calendar During his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, professor discovered that the Maya civilization used a 365 day long year, called Haab, which had 19 months. Each of the first 18 months was 20 days long, and the names of the months were pop, no, zip, zotz, tzec, xul, yoxkin, mol, chen, yax, zac, ceh, mac, kankin, muan, pax, koyab, cumhu. Instead of having names, the days of the months were denoted by numbers starting from 0 to 19. The last month of Haab was called uayet and had 5 days denoted by numbers 0, 1, 2, 3, 4. The Maya believed that this month was unlucky, the court of justice was not in session, the trade stopped, people did not even sweep the floor.
標簽： A. M. sabbatical surprising
上傳時間： 2014-01-05
上傳用戶：libenshu01
This program applies Simplified DES (S-DES) Ciphering Algorithm Developed by Maimouna Al-ammar 5th year, Computer Engineering Department, University of Damascus Information and Network Security Material
標簽： Simplified Ciphering Algorithm Developed
上傳時間： 2014-09-05
上傳用戶：源碼3
This program applies Message Digest (MD5) Algorithm Developed by Maimouna Al-ammar 5th year, Computer Engineering Department, University of Damascus Information and Network Security Material
標簽： Algorithm Developed Al-ammar Maimouna
上傳時間： 2017-08-10
上傳用戶：13188549192
this is a document about radio frequency identification RFID, this was a project ,i have done last year ,actually this technology is a very inpotrtant one due to its relation with newest technologies , like GPS , or the miniturization of integrated circuits ,and that is described in chapter 3 . chapter 1 gives an introduction of the technology RFID , chapter 2 gives a discussion of a library using RFID , and chapter 3 is about the future of RFID , and finally the conclusion .
標簽： this identification frequency document
上傳時間： 2014-01-10
上傳用戶：gtzj
Like many of my colleagues in this industry, I learned Windows programming from Charles Petzold s Programming Windows—a classic programming text that is the bible to an entire generation of Windows programmers. When I set out to become an MFC programmer in 1994, I went shopping for an MFC equivalent to Programming Windows. After searching in vain for such a book and spending a year learning MFC the old-fashioned way, I decided to write one myself. It s the book you hold in your hands. And it s the book I would like to have had when I was learning to program Windows the MFC way.
標簽： programming colleagues industry Charles
上傳時間： 2014-01-10
上傳用戶：曹云鵬
