This article is an excellent piece from the Kanxue Forum. Author from Kanxue ForumID: Avacci This topic originates from the third question of the Kanxue Advanced Research Class 3W in September. The target app has a very simple interface. Clicking the “CHECK” button will continuously print the encrypted string below. The goal is to analyze … Read more
Click the blue words to follow us 1. Origin As a developer focused on AI-assisted programming for ten years, I deeply understand the importance of encryption algorithms for project security. In daily development, various encryption and decryption functions are often needed, but traditional programming methods usually require referencing a lot of documentation and worrying about … Read more
PyCryptodome: A Python Library for Encryption! Hello everyone, today we are going to explore PyCryptodome, a powerful Python library for implementing various encryption algorithms. In this digital age, protecting data security is particularly important, and PyCryptodome is a tool that helps us achieve this goal. Whether you want to encrypt communications, protect stored data, or … Read more
This article is an excellent piece from the KX forum. KX forum author ID: taobluesky Recently encountered a shell with quite high intensity, sharing how to debug with the shell, purely a technical exchange, please do not use this article for illegal purposes! 1 Prepare Environment frida 12.11.18 jeb-3.24 jadx-gui-1.3.3-1 xcube android 7.0 (real machine) … Read more
This article is an excellent piece from the KX Forum Author from KX ForumID: Mr.YX 1. Open libsmsdk.so, locate the JNI_Onload function, import the jni.h file, and find the RegisterNatives function. if ( v11 == -2109534065 ) { v20 = v9->functions->RegisterNatives(&v9->functions, v34, (const JNINativeMethod *)off_7283C, 6); v5 = -1802225456; v10 = 86439211; v11 = -(~(v20 … Read more
Tor is one of the most powerful tools available on the internet to protect your privacy; however, many people still mistakenly believe that Tor is merely an end-to-end encryption tool. In fact, Tor is used for anonymous browsing of websites and sending emails (but not encrypting the content of the emails). Anonymous is freedom, it … Read more
Before answering this question, let us first understand two concepts: What is the MD5 algorithm? What is an encryption algorithm? 1. MD5 Algorithm MD5 stands for Message-Digest Algorithm 5, used to ensure the integrity of information transmission. It is one of the widely used hashing algorithms in computing, and mainstream programming languages generally have an … Read more
This article is contributed by the ChaMd5 Security Team IOT Group. This is a summary of the theoretical knowledge learned recently about side-channel attacks and fault injection. If there are any mistakes or areas for improvement, I hope experts will correct me. First, let’s introduce several common encryption algorithms. Encryption Algorithms RSA Encryption Algorithm RSA … Read more
Is there an inherent connection between passive side-channel analysis and active fault injection? Author | Shuyuan Editor | Pan Qizhi Background Introduction Side-channel analysis of cryptographic algorithms refers to the process of inferring intermediate values of cryptographic operations by collecting and analyzing the physical information leaked by cryptographic chips during computation, thereby recovering the keys. … Read more
Project Name: Password Cracking and Protection Techniques Based on Persistent Fault Injection Submitting Unit: School of Information and Electronic Engineering, Cyber Security Center Responsible Person: Zhang Fan 01 Project Overview Research Background: In today’s severe international competition for chips, as China strives to promote chip autonomy and controllability, chip security has become particularly important. Ultimately, … Read more