A prime number is also called a prime, which refers to a natural number greater than 1 that has no other factors apart from 1 and itself. If a natural number can be expressed as the product of two prime numbers, that natural number is called a semiprime (also known as a biprime or a … Read more
1. MD5 Encryption MD5 encryption characteristics: irreversible operation (cannot be cracked, cannot be decrypted) The result of encrypting different data is a fixed-length 32-character string (no matter how large the file is, it remains the same). The result of encrypting the same data is the same (that is, it is copied). Resistance to modification: the … Read more
In interface automation, we often encounter situations where passwords need to be encrypted. Sometimes, we look for developers to solve this. However, test engineers can also solve it themselves. Below, I will introduce the methods and applications of encryption in requests. Characteristics and Processing of MD5 Encryption Symmetric encryption algorithms: The same key is used … Read more
In today’s circuit design, the vast majority of scenarios involve mixed-signal circuit designs that integrate both digital and analog components, and the intermediate connection channels in mixed circuits inevitably rely on ADC and DAC. For example, the joystick inside our daily remote controls operates on the principle of a sliding potentiometer. Some higher-end designs use … Read more
Abstract: A SAR imaging processing scheme based on multicore DSP interconnection architecture is proposed. First, a real-time imaging algorithm based on azimuth sub-block interpolation is introduced. Second, the processing performance of the TI multicore DSP TMS320C6678 is studied, and a typical RapidIO interconnection architecture is introduced, followed by the proposal of a SAR imaging processing … Read more
Hello everyone, I am Xiaozao. The first official 5G standard is about to be released, and I believe everyone is eagerly looking forward to it. Previously, I introduced to everyone that back in December last year, we actually released a “half” 5G standard. That’s right, at that time it was the “Non-Standalone (NSA)” 5G standard. … Read more
Python Encryption Algorithm Practice: Protect Your Data Security Hello everyone, today we are going to talk about encryption algorithms in Python. In this data-driven era, protecting sensitive information has become increasingly important. Whether it’s protecting user passwords or encrypting important files, mastering some basic encryption techniques is very useful. So, let’s explore the secrets of … Read more
History Before 1976, the encryption world mainly used Symmetric-key algorithms. Symmetric encryption has a troublesome problem: when parties A and B communicate, A must inform B of the encryption rules; otherwise, decryption is impossible. Is it possible to ensure the security of key storage and transmission? In 1976, two American computer scientists, Whitfield Diffie and … Read more
Recently, Jason invited Mei from the Mathematics Department of Fudan University to give five hardcore math classes for friends interested in Web3. Starting from natural numbers, he explained the details of RSA asymmetric encryption. Let me review and try to explain this rather complex topic. (Math warning ahead, but I promise to limit it to … Read more
1. Overview of Cryptographic Algorithms Cryptographic algorithms play a crucial role in today’s digital age. With the rapid transmission and storage of information, protecting data security and privacy has become a top priority. Cryptographic algorithms are mainly divided into three categories: symmetric encryption, asymmetric encryption, and hashing algorithms. Symmetric encryption algorithms are an early and … Read more