A ZIP archive may contain many entries whose content can be compressed and/or encrypted. In particular, entries can be encrypted with a password-based symmetric encryption algorithm referred to as ...

Last time, we used Python to create a Caesar cipher. It simply shifts characters by a fixed number. and other fundamentals of cryptographic technology were packed into it. However, the Caesar cipher ...

Secure communication is essential in modern embedded systems, particularly in distributed and IoT applications. This article presents a practical implementation of encrypted message exchange between ...

Aethyr Research has released post-quantum encrypted IoT edge node firmware for ESP32-S3 targets that boots in 2.1 seconds and supports full PQC (Post Quantum Cryptography) handshakes in 35ms.

IntroductionIn December 2025, Zscaler ThreatLabz identified a new command-and-control (C2) framework implant that we track as SnappyClient, which was delivered using HijackLoader. SnappyClient has an ...

Two popular AES libraries, aes-js and pyaes, “helpfully” provide a default IV in their AES-CTR API, leading to a large number of key/IV reuse bugs. These bugs potentially affect thousands of ...

The goal of this project is to provide simple, portable and compatible code (data encrypted in Python can be decrypted in PHP, and so on). The encryption algorithm used is AES in CBC and CFB mode.

Image data has been generated massively by devices in medical imaging modalities, cameras, and even by artificial intelligence. Encryption is the powerful method to keep the image content confidential ...

The rapid advancements in technology and its seamless integration into everyday life have significantly increased the accessibility of consumer electronic devices, leading to a surge in internet usage ...

Artificial intelligence (AI) models, frequently built using deep neural networks (DNNs), have become integral to many aspects of modern life. However, the vast amount of data they process is not ...

As the title implies, these algorithms are just for fun (an excuse to hone your Python skills, if you need one). Please don't use them to encrypt any sensitive data. You've been warned. The first and ...