Tags: encryption

Disable SSLv3 to avoid POODLE attack in web.py

An open source application that I contribute to uses web.py to provide a web server platform for its services alongside the other platforms available. I recently updated it to use a sane set of default ciphers and to disable the SSLv3 protocol in order to avoid the POODLE attack the Internet is currently buzzing about. Here’s an abstract example so that you can do this yourself at home. Read More →

Give-Me-Coins.com Condensed UserScript

Lately, my interest has been piqued by cryptocurrency. After discovering that my ATI card could produce a decent hash rate without seriously spiking my electricity bill, I got specifically interested in Litecoin. Long story short, I joined a Litecoin mining pool (Give-Me-Coins.com) and decided that I could do without a few of the widgets on their dashboard page. Bing-bang-boom, I wrote a UserScript to rearrange things a little bit. Here it is for your consumption. Read More →

LDAP authentication with C#

LDAP, or Lightweight Directory Access Protocol, is a convenient, central repository for a system’s personnel information. LDAP (and other Active Directory services) are widely-used by organizations big and small to consolidate user credentials and identification data. For instance: a reporting services application, a webmail client, and a database administration suite can all read from the same Directory, with no need for replicating user information. John Doe only has to remember one password for all systems. When he changes it, those changes cascade across the board. Read More →

LDAP authentication with VB.NET

LDAP, or Lightweight Directory Access Protocol, is a convenient, central repository for a system’s personnel information. LDAP (and other Active Directory services) are widely-used by organizations big and small to consolidate user credentials and identification data. For instance: a reporting services application, a webmail client, and a database administration suite can all read from the same Directory, with no need for replicating user information. John Doe only has to remember one password for all systems. When he changes it, those changes cascade across the board. Read More →

Simple MD5 hashes in VB.NET

MD5 (Message Digest) hashes are a simple, efficient way to encode/encrypt information to be passed around. Rather than containing the data itself, an MD5 hash is merely a fingerprint of the information. The hash cannot be decrypted, but is instead compared to other hashed values for verification. This can be a handy tool when authenticating a user’s entered password as one simple example.

Here is a very efficient, simple function that can be used to generate an MD5 hash for a given string… Read More →