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
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
Wireless networks can provide significant business advantages for enterprises, such as ensuring employees can connect across multiple devices and even buildings, thereby improving productivity. However, wireless networks can also bring visible and invisible risks to business privacy. Below are nine common wireless network security pitfalls that enterprises should pay attention to. As BYOD continues to … Read more
A few days ago, I started writing a series of articles about tools and methods for unpacking malware. Each piece of malware or packer is different, and sometimes a universal method cannot be used for unpacking. However, common characteristics can sometimes be found. For example, packers often use weak encryption algorithms, and breaking these algorithms … Read more
Author / Tao Jianfeng, Director of Information Technology Department, CITIC Construction Investment Securities Co., Ltd. Du Guowei, Chen Hongping, CITIC Construction Investment Securities Co., Ltd. Information Technology Department Since the implementation of the “Cryptography Law of the People’s Republic of China”, it has effectively promoted the advancement of cryptographic technology, industry development, and standardized applications. … Read more
Generate an information digest from plaintext encoding to prevent tampering. For example, MD5 uses a hash algorithm, which outputs a 128-bit string regardless of the input length. The digest algorithm does not require a secret key; both the client and server can use the same digest algorithm to obtain consistent ciphertext for the same plaintext. … Read more
Photographer: Product Manager This Skewered Food Shop Has Finally Opened When reading various encryption articles, you often see that the authors use numbers as examples for encryption. However, in real life, we communicate in Chinese. So how can we encrypt Chinese text? In the article “Don’t Worry, No One Can Snooze Our Chat Messages”, we … Read more
Reliable and Efficient: The Block Cipher Written by | Teacher Kang In the previous five issues, we discussed the intrinsic characteristics and structures of cryptography, as well as the relationship between cryptography and security. Starting from this issue, we enter the second part of this series – the
This article is authored by Jiu Xin, originally published at: Jiu Xin Says. Introduction Recently, I helped the testing team with some signature-related requirements, and today I would like to briefly discuss the topic of signatures with everyone. If you ask why Android needs signatures, everyone might think of the official explanation: ❝ The Android … Read more
Research and Realization of the RSA Encryption Algorithm Improvement YU Xin–hong,CHEN Qi,YAN Yu (Economy and Technology Institute, Anhui Agricultural University, Hefei, Anhui 230011, China) Abstract：The modular exponentiation and modular multiplication are essential elements to secure RSA algorithm. However, modular exponentiation has been so time-intensive that it impedes RSA algorithm’s application. Therefore, it is paramount to … Read more