Title: reasoning behind frequent new address generation Post by: ggbitcoin000 on July 04, 2016, 12:11:12 AM i am seeing my bitcoin wallet (any wallet I known) periodically generates new address whenever i do a transaction after a while. I am wondering why the reason behind it, is it due to safety? I also studied the bitcoin internals quite a lot and my guesstimating that the answer lies in the elliptic curve algorithm being used.
Title: Re: reasoning behind frequent new address generation Post by: achow101 on July 04, 2016, 12:19:37 AM i am seeing my bitcoin wallet (any wallet I known) periodically generates new address whenever i do a transaction after a while. I am wondering why the reason behind it, is it due to safety? I also studied the bitcoin internals quite a lot and my guesstimating that the answer lies in the elliptic curve algorithm being used. In theory you should be generating a new address for every transaction. The point of address reuse is explained at https://en.bitcoin.it/wiki/Address_reuseTitle: Re: reasoning behind frequent new address generation Post by: Btcvilla on July 04, 2016, 12:22:36 AM Its much more secured to use a new address every transaction. Its much harder to track someone if they are always switching address's.
Title: Re: reasoning behind frequent new address generation Post by: ggbitcoin000 on July 04, 2016, 02:17:33 AM thanks!
Title: Re: reasoning behind frequent new address generation Post by: andytoshi on July 13, 2016, 11:20:31 AM HI ggbitcoin,
There are a couple "security" reasons this is worth doing:
But there is a deeper conceptual reason that addresses should not be reused: the purpose of addresses is to identify transaction outputs, which otherwise have no other identifying feature (until after you see the transaction and it has a known txid, of course). This means that when receiving payments, in order to identify what came from where, you need to give each expected payment a unique address (or unique value, but this can get difficult). It's better to think of addresses as something like invoice numbers rather than locations. ]b]Addresses identify payments, not people.[/b] A secondary conceptual reason is that if you think about addresses as location, this can lead to other confusions such as from addresses (https://en.bitcoin.it/wiki/From_address), which is an especially dangerous idea because it "usually makes sense" except when they cause people to lose money. |