Found 124 Articles for Cryptography

Introduction Information security is an essential aspect of modern-day technology, and it's vital to understand various threats that can compromise sensitive data. Two of most common types of attacks that can occur are active and passive attacks. In this article, we'll explore differences between active and passive attacks, methods used by hackers, and ways to protect against these types of threats. What is an Active Attack? An active attack occurs when a hacker attempts to alter or manipulate data in a system. This type of attack can be easily identified as it typically involves an attacker trying to perform some ... Read More

Introduction Hashing is an essential aspect of modern cryptography. It is used to encrypt data in a secure and efficient way. Cryptographic hash functions are a type of mathematical function that takes data of any size and converts it into a fixed-size output, which is referred to as a hash. This article will provide a cryptographic introduction to hashing and hash collisions, explaining how hash functions work and why hash collisions can be a problem. What is Hashing? Hashing is a process that takes input data of any size and maps it to a fixed-size output, which is called a ... Read More

Introduction Arthur Cayley came up with Cayley's Formula in the middle of the 19th century. It is one of the most important results in combinatorics and group theory. It says that every finite group can be shown as a permutation group on its own elements. Counting spanning trees in both depend on this idea. Permutations and Groups Understanding Permutations and Groups −Permutations are unique arrangements of elements, important in combinatorics. A group is a structure in algebra that has certain features. Permutation groups are subsets of the symmetric group. They are very useful for learning about abstract mathematics. Key ... Read More

Within the domain of present-day cryptography, two noticeable calculations have played significant parts in securing delicate information Diffie-Hellman and RSA. Whereas both strategies are broadly utilized for key trade and encryption, they employ effective approaches to attain their cryptographic objectives. Diffie-Hellman, created by Whitfield Diffie and Martin Hellman in 1976, focuses on securing key trade conventions, empowering parties to set up a shared mystery over an uncertain channel. On the other hand, RSA, named after its makers Ron Rivest, Adi Shamir, and Leonard Adleman, utilizes public-key encryption to defend information secrecy, verification, and computerized marks. This article dives into the ... Read More

The terms ACL (Access Control List) and IDEA (International Data Encryption Algorithm) are frequently used in computer networking and cryptography. ACL is a technique for controlling resource access, whereas IDEA is an encryption algorithm for data security. Read this article to find out more about ACL and IDEA and how they are different from each other. What is ACL? ACL is a security mechanism that controls network resource access. It is a collection of permissions attached to an object, such as a file or a network share, that determines which people or groups can access the object and to what extent. ... Read More

Cryptography and cryptology are two terms that are frequently utilized and traded. In any case, there's an inconspicuous contrast between these two terms. Cryptography alludes particularly to the hone of secure communication through the utilization of numerical algorithms, while cryptology could be a broader field that encompasses cryptography, cryptanalysis, and steganography. In this article, we are going investigate the contrast between cryptography and cryptology, counting their definitions, histories, sorts, and applications. Understanding the distinction between these two terms is fundamental for anybody inquisitive about computer security or data innovation. What is Cryptography Cryptography has various applications in an advanced ... Read More

Introduction Symmetric encryption, also known as secret-key encryption, is a type of encryption where the same key is used for encryption and decryption. This encryption method is fast and efficient, making it suitable for encrypting large amounts of data. The most commonly used symmetric encryption algorithm is the Advanced Encryption Standard (AES). Java provides strong support for symmetric encryption with the javax.crypto package, which includes classes such as SecretKey, Cipher, and KeyGenerator. Symmetric Encryption in Java Java's Cipher class in the javax.crypto package provides the functionality of a cryptographic cipher for encryption and decryption. It forms the core of the ... Read More

Introduction In today's digital world, securing sensitive information is more important than ever. Image Steganography, a fascinating subset of Cryptography, offers unique advantages in maintaining privacy and protecting valuable data from prying eyes. By discreetly embedding secret messages within ordinary images, this technique enables covert communication without arousing suspicion or leaving traces for hackers to find. In this article, the basics of Image Steganography in Cryptography – its techniques, types, advantages – along with intriguing examples from history and present-day applications will be explored. Let's embark on a journey into the hidden realm of image-based secret codes that could revolutionize ... Read More

PeStudio is a popular and powerful software analysis tool that allows users to analyze executable files for various Windows operating systems. The software was developed by the Belgian company, Marc Ochsenmeier, and is widely used by malware analysts, software developers, and security researchers around the world. We will provide an overview of what PeStudio is, how it works, features it provides to its users. The article also includes limitations and recent advancements of PeStudio. What is PeStudio? PeStudio is a tool that provides users with a detailed analysis of executable files, specifically those running on Windows operating systems. The software ... Read More

Cryptography is the key factor that prevents anyone from directly accessing information regarding any encrypted data. Lightweight cryptography refers to all those algorithms which are designed to consume fewer resources and make them more powerful. These lightweight cryptography algorithms can be applied to various IoT devices, securing the connection and ensuring safe data transfer. But how can such algorithms increase the security factor, and how can they be applicable to IoT devices? First, let us see how cryptography works. What Is Cryptography? Cryptography is the technique of converting plain text or normal information into a non-readable format that has no ... Read More