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1  Other / Beginners & Help / Re: Bitcoins stolen from encrypted wallet? Or lost due to crash? on: April 08, 2013, 05:55:48 AM
squidface, I was able to recover my 4 bitcoins. Thanks for the advice! If you PM me a wallet address, I'll send you a little thank you.
2  Other / Beginners & Help / Re: Bitcoins stolen from encrypted wallet? Or lost due to crash? on: April 08, 2013, 03:38:37 AM
Thanks for the info. I used blockchain.info and it is from the same transaction (I posted the transaction id, and on the right hand side, following the green arrow I see these two addresses).
I will now try to recover the key for that address. Is https://bitcointalk.org/index.php?topic=11331.0 a good start for learning how to do so?
3  Other / Beginners & Help / [Solved] Bitcoins stolen from encrypted wallet? Or lost due to crash? on: April 08, 2013, 03:11:50 AM
Hi guys,
it looks like some of my bitcoins were stolen, but it might be another problem, maybe due to a crash. Any help would be appreciated.
I used Bitcoin-qt, version (0.7) (don't remember precisely which version), with an encrypted wallet, Windows 7.

Sequence of events:
1. Last Saturday, with Bitcoin-qt, version (0.7), I transfer some bitcoins to Mt.Gox and sell them. I did not backup my wallet.dat at that time (but I still had an earlier backup). The client shows the correct amount of remaining bitcoins in my wallet.
2. Yesterday, Windows crashes. When I restart Bitcoin-qt, it complains that my wallet is corrupted and my blockchain, too. I make a copy of the corrupted wallet.
3. Since there is a new version of Bitcoin-qt, I update to the latest version (0.8 ), delete the bitcoin data directory (to get rid of the corrupt blockchains), put my old backup of the wallet (from before the transaction in 1.) in the data directory, download the blockchain from sourceforge and restart the client.
4. After it finishes synchronizing with the network, there is suddenly another transaction shown in the client, with almost the same, but slightly different amount of Bitcoins send to an unknown address (not my Mt.Gox account). The transaction happened at the very same time than my Mt. Gox transaction.

Were my Bitcoins stolen or is it a problem caused by my computer crashing and not having a recent backup of my wallet?
Is there a way to repair my wallet?

Any help is appreciated. Thanks!
4  Other / Beginners & Help / [Solved] Please move: "additional script for finding lost passphrase" on: April 07, 2013, 01:08:44 AM
Hi, could some admin please move this to https://bitcointalk.org/index.php?topic=85495.100 and let member Revalin know (being a newbie, I cannot post there nor PM him).

Revalin, thanks for your script. Me, too, I forgot my precise passphrase. I remembered the overall mechanism to construct my wallet passphrase but didn't remember exactly how I applied it.
My wallet passphrase consists of a left and a right part. The left part was a sequence of character, maybe "Start" or "start" or "beginning"... Same with the right part. It could have been "end" or "End" or ... So, the passphrase could have been "startend", "Startend", "beginningEnd", ... There were about twenty possibilities for the left and also for the right part, too many to test manually. So I adapted your script.

Code:
#!/usr/bin/ruby
# -*- coding: utf-8 -*-
lefts = [ "start", "Start", "Beginning" ] # The possible words for the left part
rights = ["end", "End", "ending"] # The possible words for the right part

def test(phrase)
  print phrase, "\t"
  system("./bitcoind", "walletpassphrase", phrase, "20")
  case $?.exitstatus
  when 0
    puts "Found it! #{phrase}"
    exit 0
  when 127
    puts "bitcoind not found in current dir"
    exit 1
  when nil
    puts "Aborting"
    exit 1
  end
end

lefts.each do |left|
  rights.each do |right|
    test(left + right)
  end
end

If someone wants to use it, then replace the words in lefts and rights with your words and add as many as required.

Another comment: as reported earlier by niklas, the script runs unusable slow on Windows. I recommend installing some Linux image. I had no problems with German special characters.
Revalin, please PM me, I would like to send you a Bitcoin reward. Without your script, I probably wouldn't have recovered my wallet.
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