If the address is a hash of the true public key, how are transactions verified? The sender attaches the public key of all output addresses to the transaction?
If so, if an address has ever been used to send any coins, it should be possible to retrieve its public key from the chain...
Topic: 100 BTC for a key extracting program - page 2. (Read 5632 times)
I don't really see how to get a public key from it's hash.
*** EDIT: Bounty has ended. Program was written. ***
I give 100 BTC to whoever can make the following program :
The program takes a bitcoin address on command line.
If the bitcoin address is not one of in the user's wallet, then the program does nothing apart from returning an error code.
If the bitcoin address is one of the user's wallet, then the program ouputs the corresponding Private key in PEM format, so it can be used by openssl.
That's all. 100 BTC.
I give 100 BTC to whoever can make the following program :
The program takes a bitcoin address on command line.
If the bitcoin address is not one of in the user's wallet, then the program does nothing apart from returning an error code.
If the bitcoin address is one of the user's wallet, then the program ouputs the corresponding Private key in PEM format, so it can be used by openssl.
That's all. 100 BTC.
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