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The problem is that most clients are in control of a ton of addresses. Transactions often will come from a combination of several of the addresses. And the user
by Buge 13y ago
The problem is that most clients are in control of a ton of addresses. Transactions often will come from a combination of several of the addresses. And the user has no control over which addresses are used. So a user cannot enter what address(es) a transaction will come from before the transaction is sent.
Bitcrypt works around this problem by having the victim enter the address after the transaction is sent. But this also has a problem. The victim can simply go to this page http://blockchain.info/address/1HKCHx1RFhNHuF3NxLviHdrjNFzJbCTvrC http://blockchain.info/address/1HKCHx1RFhNHuF3NxLviHdrjNFzJb... and watch for when a different victim sends a new transaction to that address. Then the first victim can claim that payment as their own.
- fryguy 13y agoThe more cryptographic version is to sign a challenge with the private key that allows spending of the bitcoins on that address to prove that you own the address. Or you know, do what most people do and have a unique bitcoin address for each person in order to identify them.