Hi, Excel enthusiasts! Today I want to share with you a super cool advanced application of Excel—data encryption. That’s right, today we are going to implement the RSA encryption algorithm and digital signatures in Excel! Sounds impressive, right? Don’t worry, I will explain each step in an easy-to-understand way. Through this article, you will learn … Read more
Basic Data Encryption: Simple Encryption Algorithms In today’s digital age, data security has become particularly important. Whether it’s personal information, transaction records, or any form of data, it is essential to protect this information from unauthorized access. This article will introduce some basic data encryption methods and implement these algorithms through code examples. What is … Read more
ClickBlueWord to Follow Us Spring Festival Happy SPRING FESTIVAL Simple encryption algorithms generally include substitution ciphers, transposition ciphers, and simple XOR. The following content consists of two parts: algorithm interpretation and algorithm programming. KAI Caesar SA Shift MI Cipher MA Code Algorithm Details Explanation CAESAR CIPHER The Caesar cipher algorithm is a typical example of … Read more
Disclaimer: Please do not use the relevant technologies in this article for illegal testing. Any direct or indirect consequences and losses caused by the dissemination or use of the information provided in this article shall be borne by the user. The author assumes no responsibility for this. Follow this public account for occasional fan benefits. … Read more
In our daily lives, we often encounter various encryption algorithms. Today, let’s discuss the Python implementations of these encryption algorithms. Most commonly used encryption methods have corresponding Python libraries, so we generally no longer need to implement specific algorithms with code. MD5 Encryption Full name: MD5 Message-Digest Algorithm, a widely used cryptographic hash function that … Read more
Author丨labuladong Source丨labuladong The “password” mentioned here is not the same concept as the passwords we use in daily life. The cryptographic algorithms discussed in this article mainly address the issues of encryption and decryption in information transmission.We must assume that the data transmission process is insecure, and all information is being eavesdropped on, so the … Read more
In this paper, we will briefly discuss the principles and practices of computer encryption algorithms. Friendly reminder: Don’t be scared off by the word “paper”; in fact, understanding a high-level paper is quite simple! Those who frequently surf the internet surely know that the security of computers and mobile phones is extremely important. A long … Read more
ClickBlue TextFollow Us Abstract: The symmetric and asymmetric cryptographic systems each have their own advantages and disadvantages.Exploring a hybrid cryptographic system that combines both, retaining their advantages while maximizing the elimination of their disadvantages, is of great significance for the efficiency and security of modern network communication.Using asymmetric encryption to protect symmetric key is a … Read more
Bouncy Castle: The Versatile Encryption Library Hello everyone! Today I want to share with you a very powerful encryption library in both Java and C# – Bouncy Castle. As a cryptography enthusiast, I particularly love this library because it is like a treasure chest that contains almost all commonly used encryption algorithms. Whether it’s simple … Read more
Source: https://www.biaodianfu.com/aes.html The Data Encryption Standard (DES) has a key length of 56 bits, resulting in a theoretical security strength of 256. However, the late 20th century was a period of rapid development in computing, and advancements in component manufacturing technology led to increasing computational power, making DES insufficiently secure. On January 2, 1997, the … Read more