PGP (Pretty Good Privacy) is a protocol for encryption and authentication of files and emails. In this tutorial I want to show how to create encrypted and signed emails using GPG (GnuPG), Thunderbird (Email Client), and Enigmail (Connector). I used windows as test case which the steps are same for *nix systems. Continue reading Encrypting Emails using PGP/GPG
In the next weeks, two sessions about web application vulnerabilities and Android Analysis and Code Injection will be held at Urmia University CERT.
You may register to the event through its registration link HERE.
Continue reading Secure Programming Sessions – Urmia University CETR
In this post I wanted to demonstrate a simple code injection example in Android. As indicated in previous posts about reversing java, the method of code execution is same in Android. Whereas Java, the BYTE CODE are SMALI codes here and the executor is Dalvik (recently ART) in Android (not JVM). Here in this post, I will describe shortly how to reverse and inject code in SMALI.
I like to play with VirtualBox. So in this post I will show you how to install Kali Linux on a USB disk with VirtualBox which can be run both on VirtualBox and directly bootable.
Every change you made with VirtualBox (or direct access) will be stored on USB and can be accessed with Direct Access (or VirtualBox). It is awesome to use VirtualBox when you want to work beside another OS. And also awesome when you want to boot directly from Physical Computer.
Continue reading Installing Kali Linux on USB with VirtualBox
Library and Book management is one of my favorite hobbies. I like to categorize (e)books, Albums, and Movies. It is more better if the contents are in my profession, IT!
Recently I and two of my students, have managed lots of IT Ebooks which I am going to tell it’s story.
You may sometimes get bored with MS Word of (rarely) LibreOffice Writer. There is another document editor which is more likely to programming! LATEX!
In this tutorial I will show how to install LATEX in windows with TexStudio editor, step by step with pictures.
You may be like to collect and watch movies, TV series, or music archives. Then you have to store them in your storage ([External] Hard drives, NAS, …) and use some software to manage them.
However the scenario sounds good but there are other great ways to turn your home network to a full capable media center. Read more to learn how to configure and change your home network to media center.
In the previous tutorials, I’ve described the simple Java byte code structure and stated to reverse a simple Hello World Java application. In this tutorial, I will describe the remaining parts of the class file. Continue reading Reversing Java: Part III
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In the Reversing Java: Part I, I’ve described the main structure of Java class file bytes. In this part, I’ll continue decompiling the HelloWorld example.