4 ms·

Project Euler is offline

117 points by snth 12y ago

zxide 12y ago
I wrote a ruby gem to help manage project euler problems a few months ago. https://github.com/yaworsw/euler-manager https://github.com/yaworsw/euler-manager Most of the problem descriptions are in the data/problems directory. You could use the gem to continue to do most of the project euler problems.
lucb1e 12y ago
If I can say anything to the admins, it would only be that I very much appreciate being open and clear about it, and of course confirming that passwords were hashed. It was the only piece of personal information I had on the site. Project Euler admins, thank you and good luck in resolving the matter. Edit: Upvotes! Well if I can add to this message: so far 12 other people agree and want to wish you good luck as well it seems :)
- chrisrohlf 12y ago
  > Passwords at Project Euler are strongly encrypted using a one-way hash This does not instill confidence. Hashes are not encryption. Furthermore there is an enormous difference between "we store your password as a single round of MD5" and "We use pbkdf2/scrypt to store your password".
  - ipsin 12y ago
    Sure, but Project Euler is a labor of love, not a high volume e-commerce site. It makes sense that they'd start with a hash and not change it for years. I'm not angry or surprised at this disclosure, and appreciate their honesty.
  - ranty 12y ago
    With a random salt otherwise rainbow tables are still "go", as it were.
  - gizmo686 12y ago
    My reading of that statement is that "Passwords are strongly encrypted" means that they are stored securly such that the cannot be 'decrypted' even by someone with access to the database. This phrase is intended for people without crypto knowledge who would not know what a one-way hash is. The "using a one-way hash" phrase is intended for people who do have this knowledge and clarifies that they are actually using a hash function, and that the previous statement was just a simplification for lay people.
esolyt 12y ago
Thanks for being open. The fact that someone has the hash of your password is still cause for concern though.
- cma 12y ago
  Especially if it is a Euler champion that has the hash :/
  - lucb1e 12y ago
    Well they managed to hack Project Euler, they can't be tech illiterate. That and some extra pocket money usually gets you pretty far in the password cracking business.
Russell91 12y ago
http://projecteuler.co http://projecteuler.co wayback machine.
- prezjordan 12y ago
  Logged in as Russell91 Fri, 16 May 2014, 12:11 I assume this is just a snapshot?
  - danielrmay 12y ago
    It looks like it's just a hard save of the problems page.
mburst 12y ago
If you're looking for your Project Euler fix while the site is down you can checkout http://www.problemotd.com/ http://www.problemotd.com/ Tons of short programming and logic puzzles on there.
kylemaxwell 12y ago
If you're jonesing for other problems, I keep a list of all sorts of programming (and security) challenges at http://hackertainment.net http://hackertainment.net. (Shameless plug but I have no ads or even analytics, it's just a thing I do.)
taeric 12y ago
Anything members can do to help get it back up?
doomrobo 12y ago
> strongly encrypted using a one-way hash That does not make me feel better. I sincerely hope that the writer of that page is not the same person who wrote the backend to the site.
pioppo 12y ago
Thanks PE admins for being open and managing the issue professionally. I really hope you can fix it quickly and be back with you glorious website. If it takes too long I will go cold turkey!! Love
aman_abhishk 12y ago
It really saddens me that this happened. And when I wondered why someone would do that, I got reminded of the dialogue from The Dark Knight "Some people just want to watch the world burn." :|
- mathattack 12y ago
  Yes - such a great site. There should be no agenda against it.

117 points by snth 12y ago

zxide 12y ago

I wrote a ruby gem to help manage project euler problems a few months ago. https://github.com/yaworsw/euler-manager https://github.com/yaworsw/euler-manager Most of the problem descriptions are in the data/problems directory. You could use the gem to continue to do most of the project euler problems.

lucb1e 12y ago

If I can say anything to the admins, it would only be that I very much appreciate being open and clear about it, and of course confirming that passwords were hashed. It was the only piece of personal information I had on the site. Project Euler admins, thank you and good luck in resolving the matter. Edit: Upvotes! Well if I can add to this message: so far 12 other people agree and want to wish you good luck as well it seems :)

chrisrohlf 12y ago
> Passwords at Project Euler are strongly encrypted using a one-way hash This does not instill confidence. Hashes are not encryption. Furthermore there is an enormous difference between "we store your password as a single round of MD5" and "We use pbkdf2/scrypt to store your password".
- ipsin 12y ago
  Sure, but Project Euler is a labor of love, not a high volume e-commerce site. It makes sense that they'd start with a hash and not change it for years. I'm not angry or surprised at this disclosure, and appreciate their honesty.
- ranty 12y ago
  With a random salt otherwise rainbow tables are still "go", as it were.
- gizmo686 12y ago
  My reading of that statement is that "Passwords are strongly encrypted" means that they are stored securly such that the cannot be 'decrypted' even by someone with access to the database. This phrase is intended for people without crypto knowledge who would not know what a one-way hash is. The "using a one-way hash" phrase is intended for people who do have this knowledge and clarifies that they are actually using a hash function, and that the previous statement was just a simplification for lay people.

esolyt 12y ago

Thanks for being open. The fact that someone has the hash of your password is still cause for concern though.

cma 12y ago
Especially if it is a Euler champion that has the hash :/
- lucb1e 12y ago
  Well they managed to hack Project Euler, they can't be tech illiterate. That and some extra pocket money usually gets you pretty far in the password cracking business.

Russell91 12y ago

http://projecteuler.co http://projecteuler.co wayback machine.

prezjordan 12y ago
Logged in as Russell91 Fri, 16 May 2014, 12:11 I assume this is just a snapshot?
- danielrmay 12y ago
  It looks like it's just a hard save of the problems page.

mburst 12y ago

If you're looking for your Project Euler fix while the site is down you can checkout http://www.problemotd.com/ http://www.problemotd.com/ Tons of short programming and logic puzzles on there.

kylemaxwell 12y ago

If you're jonesing for other problems, I keep a list of all sorts of programming (and security) challenges at http://hackertainment.net http://hackertainment.net. (Shameless plug but I have no ads or even analytics, it's just a thing I do.)

taeric 12y ago

Anything members can do to help get it back up?

doomrobo 12y ago

> strongly encrypted using a one-way hash That does not make me feel better. I sincerely hope that the writer of that page is not the same person who wrote the backend to the site.

pioppo 12y ago

Thanks PE admins for being open and managing the issue professionally. I really hope you can fix it quickly and be back with you glorious website. If it takes too long I will go cold turkey!! Love

aman_abhishk 12y ago

It really saddens me that this happened. And when I wondered why someone would do that, I got reminded of the dialogue from The Dark Knight "Some people just want to watch the world burn." :|

mathattack 12y ago
Yes - such a great site. There should be no agenda against it.