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Date: Mon, 13 Jan 2014 19:53:19 +0000
From: Roy Badami <roy@gnomon.org.uk>
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Subject: Re: [Bitcoin-development] Stealth Addresses
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> > Likewise, I could attach a payment request to an email and send it to you,
> > and now you can pay me whenever you want forever.
>
> That certainly sounds like a plausible use case. You do still have
> the problem that e-mail is an insecure channel, but it's no worse than
> exchanging Bitcoin addreses over e-mail as things stand at the
> moment.
On further reflection, I'm not sure I understand this use case of the
payment protocol. Since a PaymentRequest currently contains the
Outputs that specify the addresses to send to, reusing a
PaymentRequest like this without using stealth addresses implies
address reuse.
(Granted there are alternative solutions to stealth addresses, such as
a BIP32-style derivation.)
roy
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