News for hackers. Stuff that matters.

A comment on The Increasing Trend of Online Extortion. Parent comment

Re:The Increasing Trend of Online Extortion by higherpurpose on Wednesday November 26, 2014 @06:10AM (#8661848)
If your cash was stolen from your wallet, how would you prove the cash was yours?

Besides, I think most "mainstream Bitcoin users" have their wallets on sites such as Bitstamp, Coinbase and so on. So they can prove the Bitcoin was theirs.

[ Parent | on HN ]
Re:The Increasing Trend of Online Extortion by vog on Wednesday November 26, 2014 @06:28AM (#8661891)
Or, as onli suggested, you can provide the private keys for the emptied account(s).
[ Parent | on HN ]
Re:The Increasing Trend of Online Extortion by throwaway84356 on Wednesday November 26, 2014 @07:29AM (#8662026)
No, you don't want to give away the priv keys, as someone may transmit a future transaction you could claim with it. Simply signing a message would be sufficient. Don't reuse the 'k' value with your ecdsa sig!
[ Parent | on HN ]
Re:The Increasing Trend of Online Extortion by vog on Wednesday November 26, 2014 @11:34AM (#8663091)
Of course, you just have to prove that you know the private key. Handing it out is unnecessary. My bad.

BTW, instead of signing a message, you could also move around some money through that account. This may be easier to achieve for non-tech people, as it can be done with any Bitcoin client.

[ Parent | on HN ]