On 01/13/2014 04:02 PM, Roy Badami wrote: >> It's not public. When I say "please pay me" I also say "use this >> multiplier". > Sending a "please pay me" message is really great for business > transactions. > > But I think the use case that Peter Todd mentions is actually *the* > most important currently under-addresesd use case: > >> With stealth addresses the user experience can be as simple as you >> telling me on the phone "hey! send me that 0.234 BTC you owe me!", >> me clicking on "Send to Alan Reiner (verified by PGP)" (perhaps >> again on my off-line second factor device for a multi-sig wallet) >> and tellling you "OK, sent". > Lots of work is being done on handling consumer-to-merchant > transactions. BIP 70 does a good job of tackling the online purchase > case, and the work that Andreas Schildbach is doing with Bluetooth and > NFC will improve the options for a payer in a physical PoS transaction > who might not have Internet connectivity on their smartphone. > > But relatively little work (that I know of) is being done on > non-transactional personal payments - that is, being able to pay money > to friends and other people that you have a face-to-face relationship > with. > > What I want... no need... is to be able to open my wallet, select a > friend from my address book, and transfer the $10 I owe them from the > bar last night. > > I don't care - within reason - what process is involved in getting my > friend set up in my address book. That may well requires two way > communication (e.g. over NFC). But once it's set up, I should be able > to just select the payee from the address book and send them some > funds. Anything else is just too complciated. > > I don't know if stealth addresses are the best solution to address > this use case, but AFAIK the only current solution to this use case is > to store a long-lived Bitcoin address in the addresss book. > > roy >
Fair enough. I haven't spent much time thinking about that use case. Though, I question the feasibility of anything that requires O(N) EC multiply operations/sec, where N is the total volume of transactions moving over the network. But I guess if the prefix is big enough, the scanning operations will remain feasible forever. ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
