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It seems there are legal issues associated with AES-256 (it is disabled in Java, and Oracle tells me in their UnlimitedJCE Policy that I am "advised to consult" my "export/import control counsel or attorney to determine the exact requirements" before turning it back on and the page on Wikipedia does not look very friendly either).
It also seems that AES-128 is "fine" (at least the people responsible for putting together the JDK have come to that conclusion).
So can I just use AES-128 and feel happy with my encryption? Is it still safe enough to protect the data for a couple of more years from all but the most resourceful attackers?
Check this very simple website: http://www.keylength.com.
There you can find the various recommendations made by academic and private organizations across the world. They don't all say the same thing, but they are all in the same ballpark.
For instance, NIST claims that AES-128 is fine at the very least up to 2030.
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Note: this is not asking for a personal viewpoint on what is the better library, but rather what is the "safest" library or what is a good indication of a "safe" library.
I was looking for a Haskell library with AES256 encryption/decryption capabilities and found quite a few.
cryptocipher
cryptonite
AES
The problem is that most of these seem abandoned, except cryptonite who again seems like the least popular library (the one with the least amount of downloads).
I was wondering if using a library that seems outdated could be a problem (should I worry about possible security flaws, etc.) or if I should simply go with the one that seems most popular?
I'd definitely recommend cryptonite. It's a newer library consolidating a number of older libraries, and the ecosystem hasn't moved over yet.
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What are applications where search techniques or more specifically planning techniques are used? I am most interested in examples in use.
I know that A* is used for path planning in Robotics, that planning is used in logistics (details would be great) but what other usages are there?
For Search in general Google, etc come to mind with their inverted indices. Again, where else is it used?
For planning examples, including logistics challenges, take a look at this list. Each use case comes with multiple datasets and a problem definition.
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I had to put a captcha on my form. In favor of user-friendliness and internationalization I went with a simple math question.
Since that's almost too simple for bots to crack, I decided to put the entire question in ASCII. Is this relatively safe or can it still be easily bypassed by most bots?
I have: & #87; & #104;& #97;& #116; & #105;... and it will output "What is 4 + 1?"
Generate an image of the math question instead. And probably apply some simple transformations if you need more security.
The HTML escape is easy to bypass as it is a computer readable format. For a bot detections scheme to be successful the task must be easy for a computer to generate, easy for a human to solve, and difficult for computer to solve.
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I'm thinking about joining a free software project in order to increase my knowledge of how this kind of projects works, colaborating with people that I dont know (so far), and my C/C++ skills.
I`ve searched on sourceforge and so on, looking for projects that need developers... so my question is: how to join a existing project? (and find one I like)
Pick one you like/are interested in, look over its bug tracker, and contribute patches. As you demonstrate your ability to work along with the developers, you will generally be offered greater involvement (e.g. direct commit access).
#geekosaur has some good points. (+1)
If those don't work, I would consider looking for the lead developer of a project (preferably one with decent activity and leadership) and asking what areas they would like assistance in.
I promise you, almost every open source project manager would absolutely welcome a fresh face to the team!
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I'm looking for extremely simple forum software.
Something that simply allows a user to create an account, make a post, and for users to comment on that post.
No HTML, no user profiles, no private message, no bloat. Just software for simple postings. Almost borderline blog software that allows user created accounts.
I've looked at the following software and they have way more features, functionality and bloat than I want:
bbPress (close, but even more simple ... and from the lastest dev post, apparrently bbPress is being dropped for a WordPress plugin)
Vanilla
SMF
PunBB / FluxBB
phpBB
Does anyone know of any good simple forum software?
UPDATE
I just found an example forum that is great in being simple. It's Street Easy's forum. I'd love to know what underlining software they are using. This is nearly exactly what I want. The only thing I'd remove is that it has "Categories/Tags". I don't need that. If the Category/Tag could be removed, functionality - this is exactly what I want.
UPDATE 2
Still no answers :(