Hier findet sich eine recht nette Flashanimation zur RSA Ver-und Entschlüsselung :)

Viel Spass beim rechnen :)

Over here you can find the review… pretty nifty :)

Just for me to remember:

ntpdate -u ptbtime1.ptb.de

Here's the PDF of a little presentation about JMS – the Java Message Service – I did together with Stephan in a lecture called "Entwicklung von Web Anwendungen"; (mainly Java EE stuff)

Here are the slides: JMS_SS07_ms155_sh094.pdf

p.s. Slide 58 and 59 were videos… you'll only see the first frame embedded in the pdf

Here's the demovideo.

Here's the official site

Here's a nifty flash animation on how the Rijndael Chipher actually works:

original

Symmetric Stream Ciphers: http://media.grc.com/sn/SN-031.mp3

Symmetric Block Ciphers: http://media.grc.com/sn/SN-033.mp3

Public Key Cryptographie: http://media.grc.com/sn/SN-034.mp3

Cryptographic Hashes: http://media.grc.com/sn/SN-035.mp3

Crypte Series Wrap Up: http://media.grc.com/sn/SN-037.mp3

They just rock :)

p.s. I already blogged about them

Over here you can find more Information about the new "iTunes U";. Basically Podcasts from a bunch of big US Universites!

Recently been launched for some mayor US Cities. I really hope that this service will come to germany too, seems to be really nifty :D

So, what did I do this weekend? I watched the DFB Cup finals at a friend's new flat.

We used a beamer and a VCR to get the TV Signal stretched to a decent watchable size on the wall :)

This setup poses some difficulties though. Because of the two sources of grounding (on the TV-Cable and on the power cables), the analogue signals get distorted and the signal/noise ratio begins to suck and visual distortions begin to manifest in the picture. Colors/crightness/contrast begin to look strange and the picture starts "jumping"; (up to the point where to top half and the bottom half of a frame are "split";)

Thanks to a savvy tech monkey we got a clear picture in the end by removing the grounding of the TV Cable and blocking the grounding of the "schuko"; plug by a piece of paper :)

Who needs grounding on a beamer with a complete plastic casing anyway…

p.s. you could die if you try this at home… so DON'T!!!!!!