Lossy and lossless compression are two kinds of data compression techniques. Here in this article, you will get to learn about what is lossy and lossless compression, their differences, and uses. So, let’s start with the basics. What is Data Compression? Data compression is the process of diminishing the storage size of any data or …
Difference between Lossy and Lossless Compression Read More »
Today we are going to learn about Apriori Algorithm. Before we start with that we need to know a little bit about Data Mining. What is Data Mining ? Data Mining is a non-trivial process of identifying valid, novel, potentially useful and ultimately understandable patterns in data. Apriori Algorithm is concerned with Data Mining and …
Data Encryption Standard is a symmetric-key algorithm for the encrypting the data. It comes under block cipher algorithm which follows Feistel structure. Here is the block diagram of Data Encryption Standard. Fig1: DES Algorithm Block Diagram [Image Source: Cryptography and Network Security Principles and Practices 4th Ed by William Stallings] Explanation for above diagram: Each …
Welcome back readers, today I’ll be discussing the difference between flowchart and algorithm. But before getting started, I want to discuss a bit about both the topics. Flowchart A flowchart is a diagram which represents different steps that can help in solving a problem. It is a diagram which is made step by step using different …
Here you will get program for binary search in C. Binary search algorithm can be applied on a sorted array to search an element. Search begins with comparing middle element of array to target element. If both are equal then position of element is returned. If target element is less than middle element of array …
Here you will get rail fence cipher program in C and C++ for encryption and decryption. It is a kind of transposition cipher which is also known as zigzag cipher. Below is an example. Here Key = 3. For encryption we write the message diagonally in zigzag form in a matrix having total rows = …
Rail Fence Cipher Program in C and C++[Encryption & Decryption] Read More »
In this tutorial you will learn about vigenere cipher in C and C++ for encryption and decryption. Vigenere Cipher is kind of polyalphabetic substitution method. It is used for encryption of alphabetic text. For encryption and decryption Vigenere Cipher Table is used in which alphabets from A to Z are written in 26 rows. Also …
Here you will learn about Asymptotic Analysis and Asymptotic Notations in detail. It is common that we write Algorithm before writing code to any problem. There may exist more than one solution for a particular problem. But we need the solution which is better in time and space complexities. To compare and analyse algorithms complexities …
