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Years ago I had a bunch of bitcoin in a wallet that I encrypted. This was back when bitcoin was like $0.20 or $0.30 each. At one point I couple hundred of them but didn't know what to do with them. I lost the wallet & never really looked for it until the price skyrocketed especially digging for it when the price was at $20k but I never located it.

However, recently I got some old hard drives that had been stored at my parents for years and when looking through some of the drives I found a file btc.tar.gz.enc.

I don't remember creating this file but again it was so long ago and the coins were nearly worthless so I probably wouldn't. I have no idea how to open or decrypt the file...

I ran strings on it & I get this:

zoidberg@PlanetExpress:/mnt/c/Users/Keith/Documents$ strings btc.tar.gz.enc Salted__ s}mS'. )hXe eFeI ?b`Z OA&$> %n&LBX ?m)h;0+- t$+D' mIAi h,|V Fg.d

I don't know if this is a wallet with a decent amount of coins in it but even if it has a couple it would be awesome to get in there.

Does anyone have any suggestions for how I may be able to figure out how to decrypt it? If I can figure that out I think I can eventually guess the password I used on it.

I'm assuming I used openssl but I don't know what cipher I used or anything.

If I'm able to open this and it has anything decent in there I will buy a very nice bottle of Whiskey for the gentleman/gentlewoman/insert pronoun here that provided the information. (I know people would help me just because people on here are great... But I would still do so if they wanted it).

Thank you in advance!

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  • Do you know the password? You can list ciphers using openssl enc -ciphers and try each one by doing: openssl enc -d -in btc.tar.gz.enc -<cipher> 2>/dev/null. Suppressing stderr output should mean that you only see a result if the cipher & password is correct.
    – Daniel
    Jan 14, 2020 at 8:20
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    @DanielA You are planning to guess the cipher, given a known good password. I read the OP as meaning they were planning to guess the password given the cipher. Of course, it is possible to write a little script which given a password tries all the ciphers, and then guess the password with that. Given one bitcoin is worth $8000 atm, that's probably worthwhile.
    – Martin Bonner supports Monica
    Jan 14, 2020 at 10:12
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    Thank you! A friend of mine I talked to on facebook thinks it is AES-128-CBC. However, I tried that cipher with any password I can remember from that long ago and no luck. I'll try all the other ciphers as well cause as you said it's worth my time if I get in but I'm pretty sure I'm SOL. I knew I had that wallet somewhere and I finally find it just to realize I'm probably never going to get into it LMAO. le sigh at not having the foresight to realize how much bitcoin could possibly be worth someday.
    – Keith Shannon
    Jan 15, 2020 at 4:10

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