Patrick’s development blog

Encrypt chat conversations in Pidgin using pidgin-otr

Posted in Articles, Security by Patrick on March 17, 2009

Pidgin is an excellent “chat client” or instant messaging client. I’ve even replaced the MSN client on my Windows system with Pidgin. It’s open source and has support for many different chat networks like MSN, ICQ…

There’s a plugin called pidgin-otr (Off-the-Record messaging) which allows you to encrypt your conversations (assuming the other part also has pidgin-otr installed). Regretfully, people never seems to care about encryption even if they seem to get close to crazy if someone invades their privacy, quite the paradox… Well that’s just another story which i’m not going to post here, as i’m just spreading the word about everything that’s good : )

The Off-the-Record messaging plugin uses public and private keys. It’s very easy to use. Just download the plugin, activate it in the Pidgin add-on menu and generate a key. In the conversation window, a button will appear that makes it easy to toggle encryption on/off.

Download Pidgin from: http://www.pidgin.im/download/
Download Pidgin-otr from: http://www.cypherpunks.ca/otr/index.php#downloads

Useful free software to optimize and secure your system

Posted in Security by Patrick on June 28, 2008

Here’s a list of useful programs in different categories. Most of these programs are for Windows, but some of them are also open source and works for Linux. I only list programs that are free. I might update this post over time.

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Mozilla Firefox
The web-browser Firefox, has optional add-ons that you can install which makes it possible to extends the browsers functionality. I’ve picked out three add-ons that I find very useful. They speed up the browser and adds more security.

NoScript
It blocks all Javascript, Java and other malicious code from sites you don’t trust. Ever since I installed this, i’ve never had any spywares on my XP computer at all. A most have for people who wants a secure browser. My favorite add-on.

AdBlock Plus
Get rid of all those annoying banners and ads on websites.

Flash Block
Blocks all flash animations on all websites. If you want to play a certain flash animation though, just click on it, that’s what I like most about this add-on.

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Security
Zonealarm Firewall – A free version of the popular firewall Zonealarm. This software also has program control and port stealthing for example.

AVG Anti-Virus Free Edition – Free anti-virus program, that is easy to use, provides high level of detection capability and doesn’t use so much system resources.

Ad-Aware 2008 – Scan for spywares, data-mining, advertising, and tracking components in general.

Spybot Search & Destroy – Spyware cleaner that also has real time protection.

TrueCrypt – Open Source encryption software. Can encrypt partitions, make virtual drives and encrypt harddrives completely.

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Optimize and cleaning software
JkDefrag – Free disk defragmenter program. Optimizes your harddrive.

CCleaner – System optimization tool which cleans registry and removes temporary files. It’s very fast.