Bitcoin Forum

Hello,

A while ago I joined a small team of (mostly) game developers, but we sometimes do apps and stuff. Anyway, we hacked up the bitaddress.org code and added some pretty art for you to print and use as a gift or hidden away in a safe place:
http://studiospektar.hr/btcprint/bitaddress.html
Now, we're not security experts, so I'd love it if someone could see if our meddling managed to open the program for possible abuse from our side or someone else's side. We didn't put the index.html, so you can browse the files freely :)
Yes, I know the random generation time is shorter, that's because we're still testing. I'll change it as soon as I remember where to change it :D (found it)

We also take any other kinds of complaints and ideas. We don't promise to work on it too hard, but you could always try :)

If you don't like clicking on places, here's an example pic of the public side:
https://i.imgur.com/iLtWHm7.png
I pixelated the address to stop any qr readers from accidentally sending money into limbo :D

Looks good and with Xmas next month, some people might find it useful to make funny looking paper wallets to gift to their family and friends, as for me I use the original one without any sort of art so not too useful for me but definitely a good project and maybe you can get some technical experts to check the code and give it go/no-go so that others can download and use it without any worries.

Might be a funny project to get bitcoins into the mainstream a little bit more (offcourse, projects like this won't be the answer, but every little bit helps)
As soon as i have some time, i'll see if i can find any flaws, but i trust you guys did your homework ;)

That's definitely true and a good idea. I'll ask the illustrator if he would be arsed to make some kind of evil corporate santa or something along those lines :)


The truth is, we didn't do any homework D: but the source is on the page so if anyone distrusts our server can always pull the page off and make their own bills offline :)

Nice site. Can you design something more formal? I fear people will not take the bill seriously when I give it to them. You can also make a package to download and run offline, so we know private keys cannot be compromised.

While I see how that might be useful, it was our intention to make a fun and cartoonish set with subtle political overtones... that is, if you find Che Guevara, Walter White and undead Mickey Mouse subtle :D

Ok, that's fair. I usually give bitcoin to bitcoin newbies, i want to make a stronger impression. This is surely a strong impression in a different way  :D

Graphics looks cool. Good work !

Thank you :)

Great idea, think ill wait till one of the boffins approve off the security tho...... No Offence  ;)

none taken, I'd love to hear a second opinion :)

A cool fun project... thanks for sharing.

Security items:
- Consider using an ssl certificate to encrypt the data transfer from your server to the client, it would help against man in the middle attacks from injecting code before it runs on the client side.

- You might want to provide the sha256 hash of your client side page where the client javascript sits that calculates private and public keys. As an example, "c6c329f13831bda7bc25ce8195787cb3395d03a457401e0518876d0ff5c17166" so that someone can verify whether or not it gets tampered with on the client side by a browser helper object.

- Consider converting the text values of the privkey to an image using a javascript function, it would make it difficult for other software on the client side that maybe scanning for privkey values in browsers.

Other suggestions:
-Provide the template for images, allow users to use their own.

I would much rather use the original bitaddress.org site for the generation of the private key and use your templates to give it some bling. I think trust would be the

major issue here... even if people loved your designs, they would not trust the code. I know you asking for help on testing that part of the code, but can the testers be

trusted, would be the main point. Good luck... I will be watching this project closely for new developments.  ;)

Ooh, this has answers! Awesome! Let's answer at random :D

As I said, we're not security experts :D and using the bitaddress.org code directly sounds a bit hard to implement, especially since we already had trouble finding our way in a huge file that had html, javascript and css thrown about in random places :/

Which brings us to another problem. Even if we bought ssl, turned keys into images etc. people would hardly trust this since we're not planning to get rich off this or do any marketing, so it's gonna stay underused forever. The main idea was to build an app for our main page to show off our design skill and I suggested bill generator to help out the bitcoin community at the same time :)

Trust issues can, of course, be avoided. Whoever wants to, they can just download files (as I said, there's no index.html anywhere) and print offline

Lastly, our illustrator made a few changes for christmas time. Three characters and one background have a christmas theme now
https://i.imgur.com/yc7VZAl.png
Yes, that's Walter White sporting deer horns :D

Again, the address is:
http://studiospektar.hr/btcprint/bitaddress.html

hahah walter white that is awesome!!

although it made me miss the show and sad its over lol

Your designs are awesome, especially love the Christmas themed one. Security is a big concern with wallet generators and will probably be a big concern until someone figures a way to re-write or re-design the way they are created.

Great idea. Sad that I recognized it just today and not before Christmas when i presented some paper wallets to my friends :/ You should have made more public marketing.