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Cryptography Articles
Page 2 of 12
Active and Passive attacks in Information Security
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 MoreA Cryptographic Introduction to Hashing and Hash Collisions
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 MoreCayley’s Formula
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 MoreDifference Between ACL and IDEA
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 MoreHow is Lightweight Cryptography Applicable to Various IoT Devices?
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 MoreWhat is Air Drop?
Air drop is a new way to send and receive money using your iPhone. With Air drop, you can quickly and easily transfer money to another person without having to go through a bank or other financial institution. How do air drops work? An air drop is a method of distributing cryptocurrency tokens or assets to a large number of users at once. The most common way to do this is to send the tokens to the wallets of everyone who holds a certain cryptocurrency, such as Bitcoin or Ethereum. This can be done manually, but it is more commonly ...
Read MoreWhat is air gap?
Air gaps are used in security to isolate sensitive systems from external networks, making it much harder for attackers to gain access to them. In this article, we'll discuss the different ways you can use an air gap to improve your security posture. An air gap is a physical separation between two systems that are not intended to be physically connected. This separation ensures that there is no direct path for contaminants to flow between the two systems. Air gaps are commonly used in plumbing and HVAC systems to prevent backsiphonage or backflow of contaminated water into the potable water ...
Read MoreWhat is aggressive investment strategy?
Introduction to aggressive investment strategy If you're looking to take your investment strategy up a notch, you may want to consider an aggressive investment approach. This type of investing involves more risk than traditional methods, but it can also lead to greater rewards. Before getting started, it's important to understand the basics of aggressive investing. This includes knowing what types of assets are suitable for this strategy and being comfortable with the risks involved. Once you have a firm understanding of these concepts, you can begin to implement an aggressive investment strategy. With careful planning and a bit of research, ...
Read MoreWhat is aggregate demand?
In macroeconomics, aggregate demand (AD) is the total demand for final goods and services in an economy at a given time. It is often called effective demand, because it includes not only consumption but also investment and government spending. Aggregate demand is an economic term that refers to the total amount of goods and services demanded in an economy at a given price level. It is often represented by a curve on a graph, with the quantity of goods and services demanded increasing as the price level decreases. What factors affect aggregate demand? There are a number of factors that ...
Read MoreWhat is agency theory?
Agency theory is a framework that attempts to explain the relationship between principals and agents. In business, agency theory is often used to study how managers act on behalf of shareholders. The goal of agency theory is to find ways to reduce the conflict of interest between these two groups so that the company can run more smoothly. . In general, agency theory posits that there is an inherent conflict of interest between these two parties, as the agent (who is acting on behalf of the principal) may have different goals and objectives than the principal. This conflict can lead ...
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