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We use it a lot to build simulations.

Here's an online simulation of the Belgian economy, written using the Ada Web Server.

Several more here.

Ada is a wondefully expressive language, with lots of nice libraries, and it's well worth a look if you build, for example, simulations, financial systems and the like.

http://kuleuven.ac.be/ is a Belgian University situated in Leuven, not in the Netherlands.

I know it's a very small and unknown country for you Americans but please verify your sources.

thanks for reminder.. quick search finds latest version circa 1996.. apparently there was no reverse switch.. imagine not being able to re-read what you just read again..

try Wt. It is like GWT without Java - uses standard C++ and the only essential dependencies are boost & Xerces. Doesn't have Google pushing it, but is being actively developed. I bet it can beat the pants off GWT for server-side performance, besides being architecturally modern (uses boost signal-socket library for both client and server based event handling). Another nice feature is that it degrades gracefully - defaults to DHTML if browser can't do AJAX.

Then you don't have the right libraries. Google C++ web app brought Wt on the first result page.

We've been working on C++ AJAX toolkit called Wt. Similar to GWT, it completely hides the complexity resulting from Javascript ui logic, DHTML, XML, etc associated with creating AJAX applications. Best of all, it is pattterned from the Qt toolkit and allows you to design webapps as you would in any desktop Qt application.

It is completely object-oriented and the event mechanism is even handled by the signal and slots approach, allowing the same programming elegance found in Qt-based software. It allows you to focus on the design and logic of your program in one place and one place only! Quite similar to how Qt hides the details of the underlying window system from the programmer.

See this overview and a sample

Note the familar Qt-like syntax in creating a tree widget. [kuleuven.ac.be]

If you like writing GUI apps in Qt and would like to do the same in AJAX apps including the possiblity to integrate with desktop programs, please check it out!

We've been working on C++ AJAX toolkit called Wt. Similar to GWT, it completely hides the complexity resulting from Javascript ui logic, DHTML, XML, etc associated with creating AJAX applications. Best of all, it is pattterned from the Qt toolkit and allows you to design webapps as you would in any desktop Qt application.

It is completely object-oriented and the event mechanism is even handled by the signal and slots approach, allowing the same programming elegance found in Qt-based software. It allows you to focus on the design and logic of your program in one place and one place only! Quite similar to how Qt hides the details of the underlying window system from the programmer.

See this overview and a sample

Note the familar Qt-like syntax in creating a tree widget. [kuleuven.ac.be]

If you like writing GUI apps in Qt and would like to do the same in AJAX apps including the possiblity to integrate with desktop programs, please check it out!

It is completely object-oriented and the event mechanism is even handled by the signal and slots approach, allowing the same programming elegance found in Qt-based software. It allows you to focus on the design and logic of your program in one place and one place only! Quite similar to how Qt hides the details of the underlying window system from the programmer.

See this overview

Note the familar Qt-like syntax in creating a tree widget.

Please check it out!

It is completely object-oriented and the event mechanism is even handled by the signal and slots approach, allowing the same programming elegance found in Qt-based software. It allows you to focus on the design and logic of your program in one place and one place only! Quite similar to how Qt hides the details of the underlying window system from the programmer.

See this overview

Note the familar Qt-like syntax in creating a tree widget.

Please check it out!

ls, rm, df, du, etc . . . did any of the engineers at Bell Labs type 10-fingered?
I guess you've never typed on one of those old teletypes.

The difference is: with digital zoom, the image is enlarged before compressing. If you just take the image, and enlarge it in Photoshop afterwards, you're also enlarging the compression artefacts. Here's a test with a simple Canon Ixus-i camera:
Digital zoom: http://www.esat.kuleuven.ac.be/~athomas/images/Zoo mDigital.jpg
Photoshop: http://www.esat.kuleuven.ac.be/~athomas/images/Zoo mPhotoshop.jpg
The 'stains' you see on the car's hood in the digital zoom image are not artefacts, but raindrops. As you can see, modern cameras do have quite good interpolation algorithms, maybe even better than Photoshop's bicubic interpolation. The contrast in the digital zoom image is also better because the camera can adapt to the zoomed part only, instead of having to make sure all the irrelevant parts of the image look good as well. In the photoshop image, you would need to increase the contrast to have the same effect, further amplifying the artefacts.

Nevertheless, the use of digital zoom is never justified unless optical zoom is not available, like with my Ixus-i camera. Or, when you really want to photograph something tiny in the distance and you're already at the maximum of your optical zoom.

The difference is: with digital zoom, the image is enlarged before compressing. If you just take the image, and enlarge it in Photoshop afterwards, you're also enlarging the compression artefacts. Here's a test with a simple Canon Ixus-i camera:
Digital zoom: http://www.esat.kuleuven.ac.be/~athomas/images/Zoo mDigital.jpg
Photoshop: http://www.esat.kuleuven.ac.be/~athomas/images/Zoo mPhotoshop.jpg
The 'stains' you see on the car's hood in the digital zoom image are not artefacts, but raindrops. As you can see, modern cameras do have quite good interpolation algorithms, maybe even better than Photoshop's bicubic interpolation. The contrast in the digital zoom image is also better because the camera can adapt to the zoomed part only, instead of having to make sure all the irrelevant parts of the image look good as well. In the photoshop image, you would need to increase the contrast to have the same effect, further amplifying the artefacts.

Nevertheless, the use of digital zoom is never justified unless optical zoom is not available, like with my Ixus-i camera. Or, when you really want to photograph something tiny in the distance and you're already at the maximum of your optical zoom.

A rotary braille reader.

No.

Real crypto (they type the government uses to protect top secret data) is free:

• Public domain C/C++ AES code
• DJB also has a public-domain C and assembly AES code
• Dr. Gladman has some simple BSD licensed (usable in any commerical closed-source program) C/C++ and assembly implementations of AES
• There are some GPL implementations of AES available, for people who can handle the GPL being in their code. (GPL forces the release of source code)
• This Javascript page will help people writing AES in other languages

The e-id card does have one major design flaw though: the certificate issued by the government linking your public key to your identity contains your National Registry Number (Rijksregister/Registre national).

This number is used in many governmental databases as primary key, so it's not a good idea to give it out to everyone. The law restricts the use of the National Registry Number by private citizens and corporations for data processing. But it would have been better not create the opportunity for abuse in the first place, by spreading around this number in by way of this certificate.

The academic world in Belgium has repeatedly pointed this problem out to the government, but to no avail.

Some cool graphs on the roll out of the e-id card in Belgium are availble here: E-ID page. The e-id is no longer an experiment, in theory at least 'analog' cards will no longer be issued.

Bittorrent is on the winners list, but several key torrent sites that were raided are on the losers list as they have been permanently closed. The maddening thing is that torrent sites don't trade music files, just torrents (little road signs to files) so there is no legal precedent in ANY country that makes them illegal. The problem is, these sites don't have the money to mount a case. The concept of guilty until proven innocent gets a boost here.

That is not true actually, a few years ago, in Belgium, when mp3's where publicly available on http and ftp servers, some webmasters that only linked to those files or sites were sentenced/convicted in court (I don't know which is the most correct legal term). Here is a Dutch text that describes what happened: http://www.law.kuleuven.ac.be/jura/36n2/dumortier. htm .

You restart your machine once a week? Tell that to these guys:

http://print.squat.net/docs/affiches/print-uptime. jpg
http://pietila.info/muuta/screenshots/uptime.png
http://www.cs.kuleuven.ac.be/~jean/BILLY/uptime.gi f
http://www.arpa.net/console.jpg - *1000 DAYS*
http://www.beeck.nl/uptime.png

You are probably right about the Voyager using less power per mile (in so far that unit makes sense anyway), but a big difference is the noise.
Space is rather cold. When listening to space ships, with these gigantic parabolic dishes, you pick up little noise so the signals can be very weak. Here on earth there is a lot of man-made noise (depending on the frequency you are using) and also thermal background noise because the earth is hot compared to space. (I wrote a fairly easy to grasp article on this topic)

I am still impressed bij this guy.

Z

The ISO approval also carries some weight in industry, although after some rather disasterous specifications (such as ISO 9000), they have lost some of their image. However, there are plenty of organizations that would consider an ISO standard an absolute must.

I don't know of anyone using Whirlpool for highly secure systems. It certainly wouldn't be ok in the US, as it's not a FIPS standard. France or Germany would be better bets.

• Safety: carbon fibre is super strong! (Formula one, remember)
• Environment: lighter means less fuel consumption, ...
• Durability: no corrosion or metal fatigue.

Toxic Lucille Pane Sunflow R.I.S.E. RenderPark Radiance and of course. POV-Ray

The website of this library:

http://www.wbib.kuleuven.ac.be/?l=2/

It's the library of the sience and engineering section of the http://www.kuleuven.ac.be/

The website of this library:

http://www.wbib.kuleuven.ac.be/?l=2/

It's the library of the sience and engineering section of the http://www.kuleuven.ac.be/

I wish someone would release such a sheet for firefox : /. itself still doen't render correctly on FFox 0.8 under XPpro. As shown here, the left column tends to dribble into the article summary...

Radiance Rayshade RenderPark Moonlight 3D Ayam

Now at a station near you !
Windows : Linorg Projeto Brasil ISC | IndianaU | BinaryCode | ibiblio.org | PAIR | SecsUp | Telentente | Umbc Vienna UT

Linux : IndianaU | ISC | BehrSolutions | BinaryCode | ibiblio.org | pair | SecsUp | Telentente | Umbc Vienna UT Belnet | KULeuvenNet CVUT Sunsite FUNET

OK,

I've been off the university student network for some years, but there are occurrences where the user is just disconnected from the network. A mail is sent to the user, the mailbox is monitored and from the moment the mail is checked, the user is disconnected.I guess that works as a motivation.

They block almost everything and script the hell out of the logs AFAIK. Most common file sharing programs are detected and mails are sent out to the users, irrespective of what the content is on those programs (which is a bit too harsh).

The network is almost down to simple browsing over http, even combined with sliding downstream limitation windows.

I mainly quit because, due to increasing restrictions, it was getting pretty hard to have a decent server running with ssh/cvs/https. And that's worth a commercial service for me at twice the price.

This is the other side of the medal, and pretty annoying for non-windows-browsing-only users.
This almost makes a university network pointless (anyone can install a machine that is able to browse, and not being able to access your machine from other machines reduces it to M$ machines). I guess you can contact one of those sysadmins if you want to get BOFH scripts/blocks/advice.

There are some reasons why such drastic decisions needed to be taken though (e.g. cable access for ssh was extremely slow and basically not usable, vi over ssh for programming is not really an option anymore). I think this is combined with putting the software to secure the machines (with howto's) available, bought by the university with student group licenses. I assume that, if no actions are taken on your network, you'll end up in a simular situation where the network gets saturated (and unusable).

At out university ( Kuleuven (Belgium) ) we always use Maple. It's a pretty complete mathematical application. It's about the same as Mathematica (a bit easier). I think we use it instead of other software because of the lower licensing fees involved.

We are giving a seminar to a number of engineering students with the same goal and have put a lot of material online.

More information should become online on DSPInfoExchange, but as with most companies, promises, promises, promises... If you are interested, you can always contact me for the rest.

If you have a look at the Texas Instruments website and look for DSP Fest or Developer's Conference, you'll find a lot of relevant material. They promised to release linux tools a couple of weeks ago on the tidevcon 2002 (not the full blown gfx interface, but rather gdb like) for the 'C6000 line. Let's hope they deliver :)

I really doubt NetBSD runs on the Atari ST, since that Motorola 68000-based machine doesn't have an MMU (and thus, no memory protection). But it sure can run on the 68030-based Atari TT and the mighty Falcon. BTW, Linux runs on these, too! A special fork of CLinux (the Linux without MMU , aimed at embedded implementations) existed to allow it to run on the original ST line of machines, but has been discontinued. Too bad I'm far from being a kernel hacker :-(

Remember, people: Atari LIVES ! Now, if someone would just make a PowerPC extension for the Falcon, the life would finally have a meaning :-))

The Computer Science department of the K.U.Leuven also has a museum online, although the computers in there are not as old as the ones in the UVA computer museum.

The Computer Science department of the K.U.Leuven also has a museum online, although the computers in there are not as old as the ones in the UVA computer museum.

The Computer Science department of the K.U.Leuven also has a museum online, although the computers in there are not as old as the ones in the UVA computer museum.

First the encryption the military uses is way advanced of anything in PGP or the civilian sector.

I'd be very suprised if that was true. Would the military trust something that hadn't been reviewed by the academic sector, published in journals, etc? Trying to keep the algorithm secret simply doesn't stand up to modern cryptanalysis, if that algorithm isn't rock-solid to start with. You can download the source code and documentation to the new AES, which is the Federal standard for data encryption.

If the NSA are keeping anything secret, it will be that they have algorithmic attacks on popular techniques (and/or computing techniques and power to brute-force them), not new techniques of their own.

Actually, you can program in any language you like - just compile it an hook it into Java via JNI. Maybe not quite as simple as the .NET CLR promisies to be, but there y'go. Java servers use this trick to increase their performance by using native file I/O etc.

WTF has Prolog got to do with this? You ever try running Prolog through the CLR? No, thought not.
Besides Prolog can be hooked into Java if you want anyway.

2) Don't shorten the result from a hash.

Here is the course from the Siggraph 2001 Conference page. And here's the researcher's home page. Looks cool, way above my head though.

A serious reply to your jest: yes (sort of)

You can always run minix on your ST, for one.. and for another you can run Linux/68000 (or more properly said... you can TRY to run it :-)

I've always had an interest in reviving my ST as a terminal, to control an mpg123 playlist running on the Linux box. I like the "instant on" and "no noise" thing about the ST, but I'm too lazy to configure everything ;-)

How is that pronounced?
If you're Dutch, Flemish, Indonesian, Surinamer or South-African, it's pronounced like you think it should be. Otherwise, you could pronounce it like "Reign Dahl", "Rain Doll", "Rhine Dahl". We're not picky. As long as you make it sound different from "Region Deal".

Why did you choose this name?
Because we were both fed up with people mutilating the pronunciation of the names "Daemen" and "Rijmen". (There are two messages in this answer.)

Can't you give it another name? (Propose it as a tweak!)
Dutch is a wonderful language. Currently we are debating about the names "Herfstvrucht", "Angstschreeuw" and "Koeieuier". Other suggestions are welcome of course. Derek Brown, Toronto, Ontario, Canada, proposes "bob".

> There a big ambiguity that I couldn't really sort out while reading these web pages : Is this an Open standard or a Commercial standard ?

It's a US government standard, meaning that all government-related (whatever that means) should use it (or something like that). It's just another algorithm instead of DES/3DES to be used as The Official US Government Encryption Standard.
Some pieces-o'-software, both free and commercial, use Rijndael, but it's not a standard (ISO or ANSI or whatever).

> Will I have to pay royalties if I intend to write AES-compliant programs then sell related services ?

Probably not. There are plenty of free implementations of the Rijndael algorithm, and from what I can figure out, there doesn't seem do be any restrictions to it. From the authour's page:
Rijndael is available for free. You can use it for whatever purposes you want, irrespective of whether it is accepted as AES or not.

Even if the US government puts some kind of export restriction on software using it, it's still very available (in several free (of some kind) implementations) outside US.
NIST too, provide their own reference implementation.

> I actually read in the facts page that the "public" helped building the algorithm and specs but in which way is that AES thing public ?

The algorithm was invented by "the public" (two guys in Belgium), not by NIST or the US government. NIST just selected the one algorithm they considered the most appropriate from the whole lot of available encryption algorithms out there.

It seems to be open, and acceptable to alot of people. More information on the cipher is to be found here.

AES is Rijndael (ie the name of the cipher selected selected as AES is "Rijndael").

Find out all about it (including how to say it ;-) here and here

He has an article here that gives some details. He did right a very good analysis in a book, I edited, Pro Linux Deployment, that for instance gave no software roadmap as one of the problems of open source but he gave the counter arguments. There might be an article that is almost the same on the Web somewhere. The Introductory chapter he did was also licensed under some open documentation license.

Speaking of Rijndael, where can you download a good implementation that is free and licensed for commercial use? I recently had to choose an encryption package for a program my group was writing and our client (government affiliated) wanted to go with Rijndael since it was the new AES standard. The NIST implementation is not licensed for commercial use and other implementations don't seem to come from trustworthy enough sources. I couldn't find anything that I felt comfortable recommending so we ended up going with Blowfish.

no. i mean steganographic.

stenography is writing in shorthand.
steganography is hiding information in such a way that people cannot tell you are hiding a message.

outguess hides data in image (pnm and jpg) files in such a way that you cannot tell the image is also storing data. There is also StegFS, the steganographic file system, in which other people cannot discern information about the file system, like how much space is being used, how many files there are, filenames, etc.

The whole point is that if no one even knows you are hiding something, then they won't know to look. With information which is just encrypted, then people can see that there is something for them to attempt to decipher. But this means that steganography is security through obscurity, so you'd want to couple it with some strong encryption too.

-f

'unskilled' is a right word, even better might be 'unknowing'
I am a CS student (yes, same university as the guys behind AES-Rijndael ;) and currently I'm following a course on the development of secure software. Now I might say I know more-than-average about computers and I have some experience with a real-life company computer system but when the professor presented us a list of the most frequent security issues and a bunch of real world exploits the ease with which such an possible threat is introduced in the code made me feel like a 10-year old kiddie fooling around with the pc.
Fact is that a LOT of the sysadmins out there have no clou about security and the stunning amount of threats that exist in the software under their control, just waiting to be discovered and exploited. It should be mandatory in every decent computer related education to attend a course about security in software, not only for sysadmins but for software developers as well.
Knowledge == power!

...just my 0.02EUR...
and oh BTW: the professors main advice on how to avoid the majority of threats: use Java! :)

You should get your information from the horse's mouth. Here is Rijndael's page in Belguim: http://www.esat.kuleuven.ac.be/~rijmen/rijndael/

If you're really concerned about the governent subverting the algorithm, then go visit Vincent Rijmen's page about Rijndael.

(And I suppose I must mention this for the sake of the people who'll reply with "well, of course, IE sucks so it shouldn't be used" - how would you like it if that page redirected you to "This page is ONLY viewable with Internet Explorer" instead?)

Discussions? Flames? :P

(And I suppose I must mention this for the sake of the people who'll reply with "well, of course, IE sucks so it shouldn't be used" - how would you like it if that page redirected you to "This page is ONLY viewable with Internet Explorer" instead?)

Discussions? Flames? :P