public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: Luke Dashjr <luke@dashjr.org>
To: bitcoin-dev@lists.linuxfoundation.org,
	Mark Friedenbach <mark@friedenbach.org>
Subject: Re: [bitcoin-dev] Merkle branch verification & tail-call semantics for generalized MAST
Date: Sat, 30 Sep 2017 23:23:32 +0000	[thread overview]
Message-ID: <201709302323.33004.luke@dashjr.org> (raw)
In-Reply-To: <5B6756D0-6BEF-4A01-BDB8-52C646916E29@friedenbach.org>

On Thursday 07 September 2017 12:38:55 AM Mark Friedenbach via bitcoin-dev 
wrote:
> Tail-call execution semantics
> BIP: https://gist.github.com/maaku/f7b2e710c53f601279549aa74eeb5368
> Code: https://github.com/maaku/bitcoin/tree/tail-call-semantics

Just noticed this doesn't count sigops toward the block sigop limit.
Is that really safe? How long would it take, to verify a malicious block with 
only inputs such that there is nearly 4 MB of sigops?

(I do already understand the difficulty in supporting the sigop limit.)

Luke


  parent reply	other threads:[~2017-09-30 23:23 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-07  0:38 [bitcoin-dev] Merkle branch verification & tail-call semantics for generalized MAST Mark Friedenbach
2017-09-08  9:21 ` Johnson Lau
2017-09-12  2:03   ` Mark Friedenbach
2017-09-12  2:13     ` Bryan Bishop
2017-09-12  8:55     ` Johnson Lau
2017-09-12 19:57       ` Mark Friedenbach
2017-09-12 23:27         ` Karl Johan Alm
2017-09-13  9:41           ` Peter Todd
2017-09-11 20:37 ` Adán Sánchez de Pedro Crespo
2017-09-19  0:46 ` Mark Friedenbach
2017-09-19  3:09   ` [bitcoin-dev] cleanstack alt stack & softfork improvements (Was: Merkle branch verification & tail-call semantics for generalized MAST) Luke Dashjr
2017-09-19  7:33     ` Mark Friedenbach
2017-09-22 20:32       ` Sergio Demian Lerner
2017-09-22 21:11         ` Mark Friedenbach
2017-09-22 21:32           ` Sergio Demian Lerner
2017-09-22 21:39             ` Mark Friedenbach
2017-09-22 21:54               ` Sergio Demian Lerner
2017-09-22 22:07                 ` Mark Friedenbach
2017-09-22 22:09                 ` Pieter Wuille
2021-04-09  8:15                   ` [bitcoin-dev] maximum block height on transaction Erik Aronesty
2021-04-09 11:39                     ` Russell O'Connor
2021-04-09 15:54                       ` Jeremy
2021-04-12 20:04                         ` Billy Tetrud
2021-04-16  4:24                           ` ZmnSCPxj
2021-05-03  2:30                             ` ZmnSCPxj
2017-09-20  5:13     ` [bitcoin-dev] cleanstack alt stack & softfork improvements (Was: Merkle branch verification & tail-call semantics for generalized MAST) Johnson Lau
2017-09-20 19:29       ` Mark Friedenbach
2017-09-21  3:58         ` Johnson Lau
2017-09-21  4:11       ` Luke Dashjr
2017-09-21  8:02         ` Johnson Lau
2017-09-21 16:33           ` Luke Dashjr
2017-09-21 17:38             ` Johnson Lau
2017-09-30 23:23 ` Luke Dashjr [this message]
2017-09-30 23:51   ` [bitcoin-dev] Merkle branch verification & tail-call semantics for generalized MAST Mark Friedenbach
2017-10-02 17:15     ` Russell O'Connor
2017-10-28  4:40 ` Mark Friedenbach
2017-11-01  8:43   ` Luke Dashjr
2017-11-01 15:08     ` Mark Friedenbach
2017-11-04  7:59       ` Luke Dashjr

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=201709302323.33004.luke@dashjr.org \
    --to=luke@dashjr.org \
    --cc=bitcoin-dev@lists.linuxfoundation.org \
    --cc=mark@friedenbach.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox