Tag: Encryption

Setup Public/Private Key

When you connect to a remote server, you’re connecting over ssh or scp or a similar protocol. In each case, you may have to provide some authentication credentials to prove you are who you say you are. This can come in the form of a user/password combo, but if you’re connecting a lot or if you’re trying to setup a non-interactive connection, this can become either really monotonous or really problematic. Public/private keys will come to our rescue, and we’ll never need to enter our password again.

Encrypt your IMs in Pidgin

Around the office, when someone security-minded finds out that I instant message (IM) over Pidgin (using Google Talk’s service), there tends to be wailing and gnashing of teeth, because I am chatting in clear text over the wire. I am encouraged to use a clunky, Windows-only, proprietary, corporate, different tool that is for internal talk with internal people. “It’s secure.” “It’s encrypted,” they say. I never though I said too much of worth over chat, and what was occasionally awesome was well-encoded in l33t. But, now my friend Dean teaches me the goodness of encrypting your IMs in Pidgin.

AES Encryption Odyssey in Java with Bouncy Castle

Recently, I’ve been working on a project where I’ve tried to use AES encryption for the first time. I didn’t have to implement it myself, thank goodness, but I still ran into a few snags. Perhaps you can avoid my pitfalls and rise to new greatness on the peaks of glory and fortitude! This article title sounds like a laundry detergent.

Java Encryption - Illegal Key Size

By default, Java has a limit on the length of your encryption key. The limit, by default 128-bit, seems a little small and dated. So, let’s break through that glass ceiling! With the hammer of Thor!