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From: Matt Corallo <lf-lists@mattcorallo•com>
To: Bitcoin Protocol Discussion <bitcoin-dev@lists•linuxfoundation.org>
Subject: [bitcoin-dev] BIP 158 Flexibility and Filter Size
Date: Thu, 17 May 2018 11:25:12 -0400	[thread overview]
Message-ID: <d43c6082-1b2c-c95b-5144-99ad0021ea6c@mattcorallo.com> (raw)

BIP 158 currently includes the following in the "basic" filter: 1)
txids, 2) output scripts, 3) input prevouts.

I believe (1) could be skipped entirely - there is almost no reason why
you'd not be able to filter for, eg, the set of output scripts in a
transaction you know about and (2) and (3) may want to be split out -
many wallets may wish to just find transactions paying to them, as
transactions spending from their outputs should generally be things
they've created.

In general, I'm concerned about the size of the filters making existing
SPV clients less willing to adopt BIP 158 instead of the existing bloom
filter garbage and would like to see a further exploration of ways to
split out filters to make them less bandwidth intensive. Some further
ideas we should probably play with before finalizing moving forward is
providing filters for certain script templates, eg being able to only
get outputs that are segwit version X or other similar ideas.

Matt


             reply	other threads:[~2018-05-17 15:32 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-17 15:25 Matt Corallo [this message]
2018-05-17 15:43 ` Peter Todd
2018-05-17 15:46   ` Matt Corallo
2018-05-17 16:36 ` Gregory Maxwell
2018-05-17 16:59   ` Matt Corallo
2018-05-17 18:34     ` Gregory Maxwell
2018-05-17 18:34     ` Gregory Maxwell
2018-05-17 20:19       ` Jim Posen
2018-05-17 20:45         ` Gregory Maxwell
2018-05-17 21:27           ` Jim Posen
2018-05-19  3:12             ` Olaoluwa Osuntokun
2018-05-21  8:35               ` Johan Torås Halseth
2018-05-22  1:16                 ` Olaoluwa Osuntokun
2018-05-22  9:23                   ` Johan Torås Halseth
2018-05-23  0:42                     ` Jim Posen
2018-05-23  7:38                       ` Jim Posen
2018-05-23  8:16                         ` Johan Torås Halseth
2018-05-23 17:28                         ` Gregory Maxwell
2018-05-24  1:04                           ` Conner Fromknecht
2018-05-24  3:48                             ` Jim Posen
2018-05-28 18:18                               ` Tamas Blummer
2018-05-28 18:28                                 ` Tamas Blummer
2018-05-28 19:24                                   ` Gregory Maxwell
2018-05-29  2:42                                     ` Jim Posen
2018-05-29  3:24                                       ` Gregory Maxwell
2018-05-29  4:01                                       ` Olaoluwa Osuntokun
2018-05-31 14:27                                         ` Tamas Blummer
2018-06-01  2:52                                         ` Olaoluwa Osuntokun
2018-06-01  4:15                                           ` Gregory Maxwell
     [not found]                                           ` <CAAS2fgSyVi0d_ixp-auRPPzPfFeffN=hsWhWT5=EzDO3O+Ue1g@mail.gmail.com>
2018-06-02  0:01                                             ` Olaoluwa Osuntokun
2018-06-02  0:22                                               ` Gregory Maxwell
2018-06-02  2:02                                                 ` Jim Posen
2018-06-02 12:41                                                   ` David A. Harding
2018-06-02 22:02                                                     ` Tamas Blummer
2018-06-03  0:28                                                       ` Gregory Maxwell
2018-06-03  5:14                                                         ` Tamas Blummer
2018-06-03  6:11                                                           ` Pieter Wuille
2018-06-03 16:44                                                             ` Tamas Blummer
2018-06-03 16:50                                                               ` Tamas Blummer
2018-06-08  5:03                                                             ` Olaoluwa Osuntokun
2018-06-08 16:14                                                               ` Gregory Maxwell
2018-06-08 23:35                                                                 ` Olaoluwa Osuntokun
2018-06-09 10:34                                                                   ` David A. Harding
2018-06-12 23:51                                                                     ` Olaoluwa Osuntokun
2018-06-09 15:45                                                                   ` Gregory Maxwell
2018-06-12 23:58                                                                     ` Olaoluwa Osuntokun
2018-05-18  8:46   ` Riccardo Casatta
2018-05-19  3:08     ` Olaoluwa Osuntokun
2018-05-19  2:57   ` Olaoluwa Osuntokun
2018-05-19  3:06     ` Pieter Wuille
2018-05-22  1:15       ` Olaoluwa Osuntokun
2018-05-18  6:28 ` Karl-Johan Alm
2018-06-04  8:42   ` Riccardo Casatta
2018-06-05  1:08     ` Jim Posen
2018-06-05  4:33       ` Karl-Johan Alm
2018-06-05 17:22         ` Jim Posen
2018-06-05 17:52       ` Gregory Maxwell
2018-06-06  1:12     ` Olaoluwa Osuntokun
2018-06-06 15:14       ` Riccardo Casatta
2018-05-19  2:51 ` Olaoluwa Osuntokun

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