The web front end is the page result that users see when they type a line of letters in the browser’s address bar. However, what happens from typing letters to seeing the page, and how data is obtained, all rely on HTTP/HTTPS. However, this part is often overlooked by readers, so candidates need to gather … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with the note 【Official Account】 for faster access 1 -> Introduction to HTTP Cookies 1.1 -> Definition HTTP Cookies (also known as web cookies, browser cookies, or simply cookies) are small pieces of data sent from a … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group of 1000 people, note 【Public Account】 for faster approval 1. What is HTTPS? HTTPS is HTTP that has been encrypted and decrypted. HTTPS is also an application layer protocol that introduces an encryption layer on top of … Read more
Before discussing HTTPS, let’s first talk about what HTTP is. HTTP is a protocol that we use when browsing the web. The data transmitted using the HTTP protocol is unencrypted, meaning it is in plain text, making it very insecure to transmit private information using HTTP. To ensure that this private data can be transmitted … Read more
The PLC programs in automation control systems often encapsulate years of technological accumulation and core algorithms of enterprises. As industrial competition intensifies, protecting PLC programs from illegal copying and theft has become an important issue in the field of industrial automation. This article introduces a Siemens PLC program encryption solution practically applied at the Aerospace … Read more
Hello everyone, I am XXX. Today I want to discuss a very important topic – microcontroller security and encryption technology. As a newcomer or enthusiast in the field of automation, this topic may seem profound, but it is actually quite relevant to our lives. Imagine if someone illegally accessed our home cameras or security systems; … 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
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
JCL: The Alchemist of Java Encryption Algorithms! Hello, friends! Today, Niu Ge will talk to you about the popular topic of Java encryption algorithms. Do you remember how confused I was the first time I encountered encryption algorithms when I transitioned from testing to Java? It was like stepping into the kitchen for the first … Read more
In a controlled environment, preventing accidental errors and hardware failures is sufficient to achieve secure behavior. If an unrecoverable situation is detected, the system can switch to a limited or non-functional state, but it remains safe. In uncontrolled environments, various forms of attacks can jeopardize the security of the system. Only by considering security at … Read more