How to add an Icon to a Java application
This are the instructions to add an icon the a Java Swing application. Icon is loaded from an image. In order to load this image we make use of File and Buffered Image classes. Icon can be shown in different…
How to shut down a Computer from a Java application
A developer may need to shut down a computer from a Java application. This post explains how it can be done. Ways to identify operating system In all solutions proposed here we are calling the OS directly to shutdown…
How to crack a WEP Password using aircrack-ng
This tutorial assumes that your operating system is Linux, in any of its variants (Kali Linux, Ubuntu, etc.) Step-by-step Procedure 1. Ensure aircrack-ng suite is installed in your computer Open a terminal and type: sudo apt-get update Install aircrack-ng suite:…
Types of Wi-Fi Connections
Encryption algorithms: Encryption protocols: Wi-Fi security modes: Authentication options supported by WPA, WPA2 and WPA3: PSK is the use of a static fixed password or authentication. ENT enables the leveraging of and existing AAA (Authentication, Authorization and Accounting) service to…
Public Key Instrastructure (PKI)
Before reading this article, you may find useful to have a look at the preliminary post about encryption concepts for IT, that explains step-by-step the needs for a Public Key Infraestructure. What is a Public Key Infrastructure (PKI)? When establishing…
Cryptographic Algorithms
This post summarizes common (and some uncommon) encryption algorithms and hashing algorithms. Some of them have been deprecated over the time. So if you are looking for one to implement, please check this. A cipher is an encryption or decryption…
Encryption Concepts for IT
This post tries to summarize the basic concepts of cryptography and encryption that are relevant to information technologies, computer science and cybersecurity. It tries to focus on the basic concepts. Technical details about mathematics, calculations or implementations (like encryption algorithms…
How to print any special character on Ubuntu
Find the Unicode character linked to the character you want to print. Press Ctrl + Shift + u, then type the hexadecimal code of the Unicode character you want to print. External references heemayl, “How to print special characters“,…
Reinstall Windows XP on Dell Latitude D505
This post details the steps to reinstall Windows XP on a Dell Latitude D505. Dell Latitute D505 was a laptop from 2004. Its default operating system was Windows XP. Installation Steps 1. Get a bootable unit with Windows XP…
List of web-based Antivirus
VirusTotal It was a Spanish company that was acquired by Google on 2012. Some projects like the exploiting tool TheFatRat asks to refrain users from uploading to Virus Total the malware created with this suite. The reason…