0P3N Blog

Cybrary’s Open Blog is a user contributed cybersecurity knowledge base that brings together content highlighting the latest tools, exploits, technologies and insights in the industry.

[podcast] Cryptonite - or how to not have your apps turn to crap
By: BrBr
January 11, 2016

This week, we find ourselves understanding the#Cryptonite that can weaken devs and software creators when dealing with #cryptographic #algorithms and #passwords. Lack of proper crypto controls and hardcoded passwords can quickly turn your app into crap.Remember the last time you heard about a hardcoded#SSH private key, or have you been at work when a developer left the #API keys in ...

Part 1: Protecting Your Data in Linux - A Deeper Look at Disk Encryption
By: zhak
January 8, 2016

This article is not for complete newbies, but for juniors who already know a bit about Linux,. They can install a new system themselves and have at least basic knowledge about cryptography in general and methods of encrypting data/block devices in Linux (in particular).We'll speak about: How to do complete full disk (/dev/sda) encryption with dm-crypt ...

Python Programming for Hackers (Part 3) – Writing Scripts for Opening Multiple Websites at Once
By: bjacharya
January 8, 2016

(Note: For Video Demo/Lab, on this part, you can follow this link:  https://youtu.be/iAXbbIGG6l0. In the video, I mention Part 5 FYI.)Hello all and welcome to Part 3 of Python Programming For Hackers . Here, I'll show you the script of Python, which can be used to open multiple websites at once. Run one script and open ...

[#podcast]: Jay Schulmann explains how to use BSIMM to enhance your security program
By: BrBr
January 7, 2016

#Jay#Schulman is a consultant with 15+ years of experience in helping organizations implementing #BSIMM and other compliance frameworks.  For our first #podcast of 2016, we invited him on to further discuss BSIMMv6 and how he has found is the best way to implement it into a company's #security #program. Jay Schulman's#website:  https://www.jayschulman.com/ Jay's Podcast "Building a Life and Career in Security" ...

Python Programming for Hackers (Part 2) - All About Variables and Arithmetic Expressions
By: bjacharya
January 6, 2016

Welcome again to Python Programming for Hackers. This is Part 2. In this part, we'll see some information on Python 2 and Python 3. We'll see video links on printing "Hello World," Arithmetic Expressions and Variables in Python. There are two major Python versions, Python 2 and Python 3. Python 2 and 3 are quite different. ...

Block Cipher Encryption Method
By: HamzaMegahed
January 6, 2016

Block Cipher Block Cipher is an encryption method where the encryption algorithm operates on a plaintext block of n bits and produces a block of n bits ciphertext. Block Cipher has 2^n possible different plaintext block to encrypt.  Nonsingular Transformation: Nonsingular Transformation means the encryption algorithm must be reversible (Nonsingular) to decrypt the ciphertext ...

Kali Linux Command Lines Part 1 - Intro and Getting Started
By: bjacharya
January 5, 2016

Welcome, everyone, to this new series on using command lines in Kali Linux. My name is Bijay and I'll be teaching the whole series of this training. This training series is recommended for beginners.Let's begin. Remember, Kali is a replacement of Backtrack. Just after releasing Bactrack 5 R3, the company stopped its release, and released Kali. Tools available in ...

Discover Network Hosts with NetDiscover
By: Johan Grotherus
January 5, 2016

NetDiscover is a very neat tool for finding hosts on either wireless or switched networks. It can be used both in active or in passive mode.ARP stands for Address Resolution Protocol and it allows the discovery of which host has which MAC address. The MAC address is the physical address of the hosts network card.NetDiscover comes preinstalled ...

An Introduction to Trojan Horse Malware
By: Grimm
January 4, 2016

There are different and distinct types of malware. In this post, we'll discuss Trojan Horse Malware . We'll cover what a Trojan Horse is, some of what they're capable of doing, how they're spread and what to do if you have one on your system. According to Kaspersky Labs, six of the top ten web-based malicious ...

Android Authority features the previously banned Cybrary App
By: ryan c
January 4, 2016

The good folks over at Android Authority featured our Android App, which of course was previously banned in the Google Play Store. Again, thanks to all of you who caused an uproar, which ultimately got the app reinstated by Google Play. Here is the article on Android Authority.