Can you sign a message using Bitcoin?

Mike Jones

newbie

Activity: 14

Merit: 0

Quote from: rjk on July 30, 2012, 12:32:15 PM

You can sign, but because of the technology used you can't encrypt. In the current 0.6+ release of the reference bitcoin client, go to the "Receive Coins" tab, select an address, and click "Sign Message".

To verify, the recipient will need the exact message, the signature, and the bitcoin address that you signed from. Verification can currently only be done with bitcoind, the commandline version of the client.

Wow. You guys thought of everything.

Thanks, I may need this some time.

rjk

sr. member

Activity: 448

Merit: 250

1ngldh

You can sign, but because of the technology used you can't encrypt. In the current 0.6+ release of the reference bitcoin client, go to the "Receive Coins" tab, select an address, and click "Sign Message".

To verify, the recipient will need the exact message, the signature, and the bitcoin address that you signed from. Verification can currently only be done with bitcoind, the commandline version of the client.

Mike Jones

newbie

Activity: 14

Merit: 0

In a lot of places I live in, the government's use a GPG-signing system for documents and contracts. It makes business easier sometimes.

Is there a way I could sign a document using my wallet's identifiers? I believe they are called public and private keys, like the GPG system?

Topic: Can you sign a message using Bitcoin? (Read 1029 times)