Re: [Bitcoin-development] Bitcoind-in-background mode for SPV wallets

[Peter Todd <pete@petertodd.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512



On 9 April 2014 13:33:19 GMT-04:00, Alex Mizrahi <alex.mizrahi@gmail.com> wrote:
>>
>> 1) It's more private. Bloom filters gives away quite accurate
>statistical
>> information about what coins you own to whom ever you happen to be
>> connected too. An attacker can easily use this to deanonymize you
>even if
>> you don't reuse addresses; Tor does not help much against this
>attack.
>>
>
>There is also an option to download everything, but do only a very
>basic
>surface validation (without keeping track of UTXOs).
>You do not need a full node for that.

Yup, that's part of the idea behind partial UTXO set mode. You could have a model where your node starts with no data at all, and hence SPV security. You tell your node what the oldest key birthday is that your interested in and it downloads the full block chain starting at that date, giving you your txs w/ SPV security and full node privacy.

What partial UTXO would add on top of that is then your node would gradually scan backwards until block zero, at which point it has a complete UTXO set and is a full node.
-----BEGIN PGP SIGNATURE-----
Version: APG v1.1.1

iQFQBAEBCgA6BQJTRYWUMxxQZXRlciBUb2RkIChsb3cgc2VjdXJpdHkga2V5KSA8
cGV0ZUBwZXRlcnRvZGQub3JnPgAKCRAZnIM7qOfwhaHEB/0Q0P544nJrtapnzogG
QpREeBlwR5I8fZ+BCbNcAk6afk9KLOFIsLBW0bFvFXfSO1TiyCLMezLkvhuDC5lM
vrCBKdmaXhwMaTGppgFNl9adu8yBRQ6I2BN21hQejyfmCvHTsoN6u1oeYccL+K+D
lTK2dMCmXLixcQIJjS9sGA8/TXjmiY65RzIdXl0UHeV4JUtRREMUB1HeXJWCxMEt
4KQXb5tk21vZ+BTf9kRirnCtFT+Wudyo73M2XGKbR3mzHc2jY+RjEb71J0hUmh8s
h4kVhuMMkEFjNUwU017kEYQpmXMMRwCyUydc7BoV6hZXnUx4ROTpc6pDv2IZkeLB
bGiE
=adiR
-----END PGP SIGNATURE-----