Bouncy Castle Cryptographic Library: Making Data Security Simpler! Hello everyone, I am a programmer passionate about cryptography. Today, I want to share with you the powerful cryptographic library in the Java world—Bouncy Castle. It not only provides a rich set of cryptographic algorithms but also ensures high reliability in security. As a cryptography enthusiast, I … Read more
The historical development of cryptographic algorithms is a reflection of the continuous struggle and progress of human intelligence and technology. Below is a detailed chronological introduction: 1. Classical Cryptography (Before 5th Century) Caesar Cipher (1st Century BC) The earliest monoalphabetic substitution cipher, which encrypts by shifting the alphabet by a fixed number of positions (e.g., … Read more
Homomorphic encryption (HE) is a special encryption mode in cryptography that satisfies the property of homomorphic operations on ciphertexts. This means that after data is homomorphically encrypted, specific calculations can be performed on the ciphertext, and the result of these calculations, when subjected to corresponding homomorphic decryption, will be equivalent to performing the same calculations … Read more
Cryptography is the cornerstone of information security, and Python, as a powerful programming language, provides a wealth of tools to implement various cryptographic algorithms. Today, we will discuss how to implement some common cryptographic algorithms in Python and see how to protect our sensitive data from being stolen by malicious actors. 1. Symmetric Encryption: AES … Read more
01 Typical Wireless Network 1: Home Wireless Network This is a typical home wireless network, where two NATs are performed, one at the wireless router and the other at the optical modem’s output. The wireless router converts wired signals into wireless Wi-Fi signals. The wireless router can also be set to relay mode, with DHCP … Read more
Many people may not be very familiar with smartphones, and I am one of them. Although I use one every day, I can’t really explain much about it. I just know that suddenly everyone switched to smartphones, and I had to follow suit. However, smartphones are indeed more convenient than feature phones. What makes them … Read more
Many people may not have a deep understanding of smartphones, including myself. Although I use one every day, I can’t really explain much about it. I just know that suddenly everyone switched to smartphones, and I had to follow suit. However, smartphones are indeed more convenient and user-friendly than feature phones. What makes them better? … Read more
Click the blue text ↑ to follow us Recently, Suzhou Guoxin Technology Co., Ltd. (hereinafter referred to as Guoxin Technology) and Anhui Wentian Quantum Technology Co., Ltd. (hereinafter referred to as Wentian Quantum) established a “Quantum Chip Joint Laboratory” to collaborate on the development of the quantum secure chip CCM3310SQ-T, which has completed its research … 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
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