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| author | Luke Dashjr <luke_github1@dashjr.org> | 2020-08-20 22:22:06 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-20 22:22:06 +0000 |
| commit | 9d44e594b0baa509f95609010c64ef2840da2233 (patch) | |
| tree | c6bb1836c24b63383bd14339bbb9248009506523 | |
| parent | 76c3ced4b074866ffd3ae7bd28dbb96dd4cadd8a (diff) | |
| parent | 25fe59882816d8e0c60a01999fe39c1eac1a667f (diff) | |
| download | bips-9d44e594b0baa509f95609010c64ef2840da2233.tar.xz | |
Merge pull request #970 from instagibbs/patch-12
BIP 342: be slightly more explicit about codesep_pos
| -rw-r--r-- | bip-0342.mediawiki | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bip-0342.mediawiki b/bip-0342.mediawiki index b337ea9..3cf87a3 100644 --- a/bip-0342.mediawiki +++ b/bip-0342.mediawiki @@ -110,7 +110,7 @@ To validate a signature ''sig'' with public key ''p'': * Compute the tapscript message extension ''ext'', consisting of the concatenation of: ** ''tapleaf_hash'' (32): the tapleaf hash as defined in [[bip-0341.mediawiki#design|BIP341]] ** ''key_version'' (1): a constant value ''0x00'' representing the current version of public keys in the tapscript signature opcode execution. -** ''codesep_pos'' (4): the opcode position of the last executed <code>OP_CODESEPARATOR</code> before the currently executed signature opcode, with the value in little endian (or ''0xffffffff'' if none executed). The first opcode in a script has a position of 0. A multi-byte push opcode is counted as one opcode, regardless of the size of data being pushed. +** ''codesep_pos'' (4): the opcode position of the last executed <code>OP_CODESEPARATOR</code> before the currently executed signature opcode, with the value in little endian (or ''0xffffffff'' if none executed). The first opcode in a script has a position of 0. A multi-byte push opcode is counted as one opcode, regardless of the size of data being pushed. Opcodes in parsed but unexecuted branches count towards this value as well. * If the ''sig'' is 64 bytes long, return ''Verify(p, hash<sub>TapSighash</sub>(0x00 || SigMsg(0x00, 1) || ext), sig)'', where ''Verify'' is defined in [[bip-0340.mediawiki#design|BIP340]]. * If the ''sig'' is 65 bytes long, return ''sig[64] ≠ 0x00 and Verify(p, hash<sub>TapSighash</sub>(0x00 || SigMsg(sig[64], 1) || ext), sig[0:64])''. * Otherwise, fail. |