SD cards are familiar to everyone; we have all seen and used them. When inserted, they automatically lock in place, and with another press, they pop out. But what structural principle enables this function? The card slot mechanism commonly used in mobile devices is simple yet classic. This mechanism is a classic application of … 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
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
Encryption Algorithms: Data Security Assurance for Microcontrollers and PLCs In industrial automation systems, data security is a critical issue that cannot be ignored. Whether it is a microcontroller or a programmable logic controller (PLC), they often need to handle and transmit important data such as production parameters, quality records, and machine status. If this data … Read more
There are two sayings: 1) Algorithms and data structures are an important part of programming. If you lose algorithms and data structures, you lose everything. 2) Programming is algorithms and data structures; algorithms and data structures are the soul of programming. Note that this is not my own statement, but a summary from countless programmers. … Read more
This series is divided into two parts, primarily introducing knowledge related to symmetric encryption, including the concept of symmetric encryption, its development history, block cipher algorithm structure, stream cipher algorithm structure, typical symmetric encryption algorithms, and the applications of symmetric encryption algorithms. 1.Concept of Symmetric Encryption Algorithms Both parties in communication can use a secure … Read more
Click the above Computer Enthusiast to follow us For Android smartphones, the “screen-to-body ratio” is one of the most appealing parameters because a higher screen-to-body ratio provides a more stunning visual experience once the screen is lit up—almost the entire view is screen, which is the future direction of smartphone development.To achieve a higher screen-to-body … Read more
Click👆Reserve the live broadcast to see the wonderful sharing from big company CEOs! Previously, we disassembled two low-cost multimeters, and also disassembled a more standard multimeter. We can see that the design of multimeters is basically similar, with differences in some design details and materials. This time we will dissect a different type of multimeter … Read more
Speakers are devices that bring us wonderful music experiences. They come in a variety of types and styles, from compact and portable Bluetooth speakers to large home theater audio systems, catering to different scenarios and needs. Speakers convert electrical signals into beautiful sounds through various technologies and components, allowing us to immerse ourselves in the … Read more
Source: https://www.cypress.com/ Translated and organized by RF Academy, for learning purposes only. Hello everyone, this is 【RF Academy】. Today we will learn together about Cypress’s “Antenna Design and RF Layout Guide.” If you need the original document, please leave a message at the end. This guide explains antenna design in simple terms and provides guidelines … Read more