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
標(biāo)簽： monoalphabetic Playfair provides security
上傳時(shí)間： 2017-05-25
上傳用戶：變形金剛
How to control the time s equence of LM3033B- 0BR3 LCD module by C51 programming was dis cus s ed in this paper. In this way the LCD module was driven by parallel communication and the characters and graphics could be were narrated in detail.
標(biāo)簽： programming control equence module
上傳時(shí)間： 2017-05-29
上傳用戶：熊少鋒
If you have ever wanted to store data temporarily in your Delphi Win32/.Net, C++ Builder or Kylix application, and you at the same time wanted full access to the data as if they were stored in a database table, you have the right solution here. kbmMemTable is a full TDataset compatible in memory table loaded with functionality.
標(biāo)簽： temporarily Builder Delphi wanted
上傳時(shí)間： 2017-05-29
上傳用戶：ljt101007
Create modern-looking & feature-rich Windows applications faster with over 300 components in one money and time saving bundle
標(biāo)簽： modern-looking feature-rich applications components
上傳時(shí)間： 2017-06-11
上傳用戶：talenthn
This library implements the KLT Tracking algorithm [2004] for Feature Tracking in Video useful in computer vision tasks like object recognition, image indexing, tracking and structure from motion. This implementation uses programmable Graphics Hardware to achieve considerable speedup in the running time of the GPU-based implementation.
標(biāo)簽： Tracking implements algorithm Feature
上傳時(shí)間： 2013-12-10
上傳用戶：trepb001
This library implements the KLT Tracking algorithm [2004] for Feature Tracking in Video useful in computer vision tasks like object recognition, image indexing, tracking and structure from motion. This implementation uses programmable Graphics Hardware to achieve considerable speedup in the running time of the GPU-based implementation.
標(biāo)簽： Tracking implements algorithm Feature
上傳時(shí)間： 2013-12-19
上傳用戶：WMC_geophy
This program calculates Approximate Entropy of a given time series. Approximate Entropy is a statistic which is used to predict the regularity in agiven time series. Apen( Approximate entropy ) is a recently developed method highly used in biomedical applications.
標(biāo)簽： Approximate Entropy calculates program
上傳時(shí)間： 2013-12-27
上傳用戶：電子世界
Java Extreme Programming Cookbook offers more than just a collection of cut-and-paste code. Each recipe also includes explanations of how and why the approach works, so you can adapt the techniques to similar situations. One of the biggest challenges facing developers today is sorting through the wide variety of tools available form various source and figuring out how to them effectively. The recipes in Java Extreme Programming Cookbook showcase how to use the most important features of these XP tools. Many of these tools are geared towards unit testing, while others are invaluable for continuous integration with these practical examples, you ll be able to choose the most effective tools to accomplish your goals, then implement them in a cohesive development environment quickly.
標(biāo)簽： cut-and-paste Programming collection Cookbook
上傳時(shí)間： 2017-06-29
上傳用戶：cmc_68289287
As an alternate to the migration scenario, Microsoft offers some interoperation solutions (in an interoperation scenario, you don t try to turn the MFC code into .NET automatically, you just try to ensure that they can work together):
標(biāo)簽： interoperation alternate Microsoft migration
上傳時(shí)間： 2017-07-01
上傳用戶：wys0120
Some time during my development works I had the need of printing the contents of a ListView control. So I wrote down the code for a custom control, named PrintableListView, that solved the following two problems: * extend the print on multiple pages when the width of the list exceeds the width of the print page, * shrink, optionally, the list in a way that the resulting width fits o
標(biāo)簽： development the ListView contents
上傳時(shí)間： 2014-01-22
上傳用戶：Divine
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