This article walks through reverse‑engineering an Android login flow using Frida to hook methods, analyzes the DES/CBC encryption and MD5 signing process, reproduces the algorithm in JavaScript with CryptoJS, and provides full code and results for verification.
This article explains the fundamentals of symmetric encryption, presents Python examples for AES and DES using the pycryptodome library, demonstrates how to encrypt API request data, and outlines key management and performance considerations for secure API automation testing.
DeepQueueNet combines discrete‑event and continuous simulation with deep neural networks to deliver highly accurate, generalizable, and GPU‑scalable network performance estimates at packet‑level granularity, outperforming existing DNN‑based estimators across diverse topologies and traffic scenarios.
This article explains symmetric encryption concepts, lists common algorithms, and demonstrates how to use PHP's mcrypt extension to perform DES and AES encryption and decryption in various modes with complete code examples.
This article walks through static analysis and Frida hooking of an Android app’s login flow, dissecting the JsonRequest, RequestUtil, and encryption steps, then reproduces the MD5‑based sign generation and DES‑CBC encryption in JavaScript, providing full code snippets and explanations.
This article explains how to reverse‑engineer the Shumei slider captcha by retrieving its configuration API, extracting the obfuscated JavaScript, locating the decryption function, and using Python regex and execjs to capture dynamic parameters and DES keys for successful automated submissions.
This article explains fundamental cryptography concepts, traces the evolution from ancient substitution ciphers to modern symmetric and asymmetric algorithms, and provides complete Java code examples for DES, AES, RSA, digital signatures, and hash functions such as MD5 and SHA.
This article explains how to protect payment platform data by using symmetric (DES, 3DES, AES) and asymmetric (RSA) encryption, key‑storage strategies, TLS transport security, and anti‑tampering signatures, with complete Java code examples for Android.
This article explains the security architecture of payment platforms, covering terminal data protection, symmetric and asymmetric encryption methods such as DES, 3DES, AES, and RSA, code implementations for Android, TLS transmission security, anti‑tampering signatures, and practical key‑management strategies.
This article introduces symmetric encryption algorithms such as DES, 3DES, and AES, explains their principles, advantages and drawbacks, and provides complete .NET Core sample code using the BouncyCastle library for encryption and decryption with various padding modes.
An Android SDK project's shift from HTTPS to RSA‑encrypted HTTP prompts a deep dive into AES encryption, tracing its historical roots from early ciphers through DES and Triple‑DES, culminating in the Rijndael design, while illustrating core cryptographic concepts of confusion, diffusion, and secret keys.
This article introduces Python's cryptographic capabilities, covering built‑in hashing with hashlib, key derivation with pbkdf2_hmac, and practical examples using third‑party libraries PyCryptodome and cryptography to perform MD5/SHA hashing, DES and RSA encryption/decryption, and secure file handling.
