The noise cancellation function is very important for headphones. Firstly, it reduces noise, preventing excessive volume amplification, thus minimizing damage to the ears. Secondly, it filters noise to improve sound quality and call quality. Noise cancellation can be divided into passive noise cancellation and active noise cancellation. Passive Noise Cancellation refers to physical noise cancellation, … Read more
The chips I have used before include: AT89C51, 2051, PIC16C711, 16F84, LPC76X, ADuC812/834 However, after seeing AVR, I think AVR has many advantages: 1. It has a 10-bit A/D converter, which generally meets the basic requirements for industrial control; 2. It comes with FLASH and EEPROM, especially the EEPROM, which can store logic bombs to … Read more
To help everyone better understand how these security protocols and operations work efficiently, it is necessary to delve into the internal mechanisms of IoT security and reveal the secrets behind it. We will consider everything from everyday smart home devices to large cloud-based services, focusing on the security measures taken to prevent data breaches and … Read more
This article is a highlight from the Kanxue Forum. Author ID on Kanxue Forum: Shaobanjia After reading the STM32 firmware reverse engineering thread on the forum (https://bbs.pediy.com/thread-272811.htm), I found a help request in the comments about the STM32 chip program that uses the XTEA encryption algorithm, but I couldn’t understand the data sorting issue (https://bbs.pediy.com/thread-272872.htm). … Read more
Encryption is generally about encrypting binary encoded formats, which corresponds to Python as Bytes. You need to convert str to Bytes using encode and decode. 01 md5 import hashlib def MD5(str): h1 =hashlib.md5() h1.update(str.encode(encoding = 'utf-8')) return h1.hexdigest() # lowercase if __name__ == "__main__": str ='123232' md5 =MD5(str) print("Before encryption: "+ str) print("After encryption: " … Read more
Introduction Cryptography is one of the most basic technologies for internet applications, primarily ensuring data security. Security is multidimensional; through irreversible hash algorithms, we can ensure the safety of login passwords; through asymmetric encryption algorithms, we can ensure the security of data storage; through digital signatures, we can verify whether data has been tampered with … Read more
Click the blue “Go Language Chinese Network” above to follow us, get a complete set of Go materials, and learn Go language every day Introduction to Encryption Algorithms An encryption algorithm is a method of encryption. In cryptography, encryption is the process of hiding plaintext information so that it is unreadable without special information. Encryption … 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
Experts can skip this; this is just a beginner’s learning note, not very substantial. The renowned AES has always been a concept I knew vaguely, but I didn’t understand its details well and often just skimmed over it. Recently, due to circumstances, I reluctantly started to delve into it… After learning about it, I found … 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