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September 30, 2025, 05:13:38 PM *
News: Latest Bitcoin Core release: 29.0 [Torrent]
 
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1  Bitcoin / Bitcoin Technical Support / Re: Bitcoin Core - Loss of privacy when encrypting your wallet for the first time? on: May 06, 2019, 07:43:46 AM
Ok cheers, thanks!
2  Bitcoin / Bitcoin Technical Support / Re: Bitcoin Core - Loss of privacy when encrypting your wallet for the first time? on: May 06, 2019, 06:23:42 AM
Quote from: ETFbitcoin on May 06, 2019, 05:35:25 AM
I don't know about 25MB of leftover file, but AFAIK after you encrypt your Bitcoin Core wallet, you will use different private key/master private key.
If you encrypt your wallet before you made any transaction or receive coins from address which created before the wallet is encrypted, you have nothing to worry.

Right. And 25mb is a random example.

But what if you've imported a bunch of keys prior to encrypting? Then each individual key is contained unencrypted in the wallet.dat file, no? Does importing keys into an already encrypted wallet prevent the unencrypted keys from betting written to the drive?
3  Bitcoin / Bitcoin Technical Support / Bitcoin Core - Loss of privacy when encrypting your wallet for the first time? on: May 06, 2019, 05:27:45 AM
So I was thinking. I just encrypted my wallet for the first time and the file size cut about in half. I am assuming this is due to some sort of compression in the encryption stage, but it causes a possible loss of privacy by doing this.

Say I have an unencrypted wallet of 50mb and it turns to 25mb when encrypted. What happens to the other 25mb of unencrypted wallet file that's left on the hard drive? Couldn't a data recovery specialist recover these keys unencrypted?

Sorry if I am being ignorant and thanks for any input.

Edit: unless the encryption is done before the compression.. Duh lol
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