This is an explanation of the Cryptography challenge 'New Caesar' from CyLab Security Academy (formerly picoCTF). You are provided with a short ciphertext and the single Python script that created it.

本内容遵循CC 4.0 BY-SA版权协议 凯撒密码，这个名字听起来就带着一股历史的厚重感。作为密码学领域最古老、最经典的替换密码之一，它不仅是信息安全启蒙的绝佳案例，更是我们理解现代加密 ...

On June 8, 2026, attackers published six malicious versions of widely-used Python bioinformatics packages to PyPI in under 60 seconds. Every package was uploaded using the Bun JavaScript runtime - an ...

self-replicating worm is spreading across the npm registry using binding.gyp, a file that triggers code execution during npm install without touching package.json scripts. The attack bypasses ...

Since ancient times, message encryption has sparked interest, particularly in the military sphere, ranging from the simple Caesar cipher to the German Enigma machine. As the number and complexity of ...

Welcome to the Cryptography and Information Security Lab repository. This repository covers a variety of classical and modern encryption algorithms, as well as cryptographic techniques for secure data ...

TL;DR: When we think of coding, we often envision lines of text written in languages like Python, JavaScript, or HTML on a computer screen. This has become the standard image of coding. When we think ...