Topic: Bitaddress.org bug?? private key mismatch (Read 2265 times)

Thank you for resolving this!

Good to know that bitaddress.org is free of errors.

However it is disturbing to see all these kinds of malware targeting Bitcoin-related services... it makes you feel unsafe executing any script... Well at least the criminals agree, that Bitcoin has value...

ya.ya.yo!

Wow, I didn't know this existed. It's not on my Chrome now (unless I installed & unstalled it months ago).
Antivirus check = negative, but as usual there were some trackers and stuff (that I deleted too)

Thanks for the update!

Edit: So I think this problem is solved. Bitaddress.org is safe to use  

Yes, thats the address! Good catch.
Chrome extensions are a big security problem, no just for bitcoins. 

Remember way back in the beginning of this thread when I said that it was far more likely that you have malware on your computer that changed the bitcoin address?

Guess what.

I did about 3 seconds of research with a Google search now that you finally posted the address, and it seems pretty clear that you have malware on your computer that changed the bitcoin address:



Security Inform

Another question to OP. Did you check the SHA1?

I just dropped by to say I've read this thread.

The code has been around a long time and no one has made this type of claim. The code has unit tests to ensure accuracy. Also, in testing we have used the bulk wallet in the past to generate 10,000+ addresses and tested them against other bitcoin software to ensure only good matching pairs are being generated.

Even in this claim the generated address and private key match because the address is passed into the function that creates the QR code for the bitcoin address. Meaning the complex bitcoin part of the code worked fine. So, the behavior that is claimed to be affected would be the simple code that is updating the HTML.

As a sanity check I would ask the OP to run the unit tests by placing a query string at the end of the page, please do this with the offline version you presumably downloaded.
https://www.bitaddress.org/bitaddress.org-v2.9.3-SHA1-7d47ab312789b7b3c1792e4abdb8f2d95b726d64.html?unittests=true

OP was your browser or system misbehaving in any way you could detect? Was your system low on memory or anything that might shed light on this? My questions are just speculatings.

At this moment it seems more plausible you have encountered some new malware. Easier for malware to change the text in the HTML then to swap out the QR code. PLUS the wrong bitcoin address shown in your screenshot has money on it meaning that someone else controls that key. If this were a legitimate code failure it would not produce an existing bitcoin address because a collision like that is theoretically impossible.

thanks, and your result isthe same as mine 

No response yet. I used Chrome on a Win7.

fixed that for you:



Edit:

private key: 5KaDTTWPxdwxrFYboxQPJiXgqwua9SULLCvLFEBuGkbeQnSLAoG
results in address: 16obDHVzXx1YevqkAkDyN5Vbqw4V8iauGf
according to brainwallet homepage [1].


[1] https://brainwallet.github.io/

Sure: (sorry for the upside/down)

Please take a look at the Bitaddress' IP address that you get because someone could modify your local DNS, proxy or any other record in the LAN. If that is posible then you could be accessing to a fake Bitaddress.org site.  

I wouldn't reveal anything publicly yet. First, import both the uncompressed and compressed private keys that Bitaddress generated. Each type of private key corresponds to a different address.

@ArpFlush could you post an image with the key pair? It is not useful for you, isn't it? I would like to see it by myself.

Open issue: https://github.com/pointbiz/bitaddress.org/issues/90

Folks, I tested it by myself and keys are okay.

Gr8 idea! I will do this prior to sending any amount to any paper wallet. Thx for this. +1

Well then it's serious. What browser do you use?

Any response from the bitaddress team?

They should take down the site until they have identified and solved the error.

ya.ya.yo!

Download Electrum on a machine that has never had it installed before & unplug machine from internet.
Run Electrum and then Wallet --> Private keys --> Import [type in the private key and make sure it brings up the correct address.]
Then delete all the info from the proper locations on your PC to be sure that there is no record of the private key.

-Dave

If this bug is real it can make people lose a lot of bitcoin. People make paper wallets and send moeny to them and never check if the key matches the address or not. How do one check the key offline?

Well, here's an update.

I scanned both QR's with my phone. The left one (public key) doesn't match the written BTC address below the QR. The private key QR was correct.

In other words: the left part of the page (Bitcoin address) > QR code doesn't match BTC address below the QR. As I used my desktop machine I copy/pasted the btc address in blockchain.info > result: 1BTC on this address (felt like I won the lottery)

Conclusion: Both QR codes match each other, both keys printed in clear text don't match. Check before using you must 
Luckily I didn't send BTC to this address!