From 8e22af1d0a5de646b8f6cf4e9a78aa5792fcf7a5 Mon Sep 17 00:00:00 2001 From: Johnson Lau Date: Thu, 14 Jan 2016 13:15:10 +0800 Subject: Title change and links update --- README.mediawiki | 2 +- bip-0143.mediawiki | 8 ++++---- bip-0144.mediawiki | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/README.mediawiki b/README.mediawiki index fdfb988..63fc568 100644 --- a/README.mediawiki +++ b/README.mediawiki @@ -417,7 +417,7 @@ Those proposing changes should consider that ultimately consent may rest with th | Draft |- | [[bip-0143.mediawiki|143]] -| Transaction signature verification for version 0 and version 1 witness program +| Transaction Signature Verification for Version 0 Witness Program | Johnson Lau, Pieter Wuille | Standard | Draft diff --git a/bip-0143.mediawiki b/bip-0143.mediawiki index 4aca2db..3d7e856 100644 --- a/bip-0143.mediawiki +++ b/bip-0143.mediawiki @@ -1,6 +1,6 @@ 
   BIP: 143
-  Title: Transaction signature verification for version 0 and version 1 witness program
+  Title: Transaction Signature Verification for Version 0 Witness Program
   Author: Johnson Lau 
           Pieter Wuille 
   Status: Draft
@@ -9,7 +9,7 @@
== Abstract == -This proposal defines a new transaction digest algorithm for signature verification in version 0 and version 1 witness program, in order to minimize redundant data hashing in verification, and to cover the input value by the signature. +This proposal defines a new transaction digest algorithm for signature verification in version 0 witness program, in order to minimize redundant data hashing in verification, and to cover the input value by the signature. == Motivation == There are 4 ECDSA signature verification codes in the original Bitcoin script system: CHECKSIG, CHECKSIGVERIFY, CHECKMULTISIG, CHECKMULTISIGVERIFY (“sigops”). According to the sighash type (ALL, NONE, SINGLE, ANYONECANPAY), a transaction digest is generated with a double SHA256 of a serialized subset of the transaction, and the signature is verified against this digest with a given public key. The detailed procedure is described in a Bitcoin Wiki article. [https://en.bitcoin.it/wiki/OP_CHECKSIG] @@ -22,7 +22,7 @@ Unfortunately, there are at least 2 weaknesses in the original transaction diges Deploying the aforementioned fixes in the original script system is not a simple task. That would be either a hardfork, or a softfork for new sigops without the ability to remove or insert stack items. However, the introduction of segregated witness softfork offers an opportunity to define a different set of script semantics without disrupting the original system, as the unupgraded nodes would always consider such a transaction output is spendable by arbitrary signature or no signature at all. [https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki BIP141: Segregated Witness (Consensus layer)] == Specification == -A new transaction digest algorithm is defined, but only applicable to sigops in version 0 and version 1 witness program: +A new transaction digest algorithm is defined, but only applicable to sigops in version 0 witness program: Double SHA256 of the serialization of: 1. nVersion of the transaction 2. hashPrevouts @@ -122,7 +122,7 @@ As a soft fork, older software will continue to operate without modification. No == Reference Implementation == -https://github.com/sipa/bitcoin/commits/segwit2 +https://github.com/sipa/bitcoin/commits/segwit3 == References == diff --git a/bip-0144.mediawiki b/bip-0144.mediawiki index e3843a8..736fadd 100644 --- a/bip-0144.mediawiki +++ b/bip-0144.mediawiki @@ -116,7 +116,7 @@ MSG_WITNESS_BLOCK requests will return a block message with transactions that ha Special thanks to Gregory Maxwell for originating many of the ideas in this BIP and Luke-Jr for figuring out how to deploy this as a soft fork. == Reference Implementation == -https://github.com/sipa/bitcoin/commits/segwit +https://github.com/sipa/bitcoin/commits/segwit3 == Copyright == This document is placed in the public domain. -- cgit v1.2.3