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doc: fix SigMsg length in taproot sighash

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Andrew Poelstra 2021-07-01 22:18:25 +00:00
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commit cca82245f8
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doc/taproot-sighash.mediawiki
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@ -61,5 +61,5 @@ If the parameters take acceptable values, the message is the concatenation of th
*** ''sha_single_output'' (32): the SHA256 of the corresponding output in <code>CTxOut</code> format.
*** '''''NEW''''' ''sha_single_output_witness'' (32): the SHA256 of the serialization of the corresponding output witnesses (rangeproof and surjection proof) in <code>CTxOutWitness</code> format.
The total length of ''SigMsg()'' is ''443'' bytes for <code>ANYONECANPAY</code> sighashes, ''366'' bytes for non-<code>ANYONECANPAY</code> sighashes, and both numbers are reduced by 64 bytes for <code>SIGHASH_NONE</code> sighashes. Note that this does not include the size of sub-hashes such as ''sha_prevouts'', which may be cached across signatures of the same transaction.
The total length of ''SigMsg()'' is ''257--442'' bytes for <code>ANYONECANPAY</code> sighashes, ''366'' bytes for non-<code>ANYONECANPAY</code> sighashes, and both numbers are reduced by 64 bytes for <code>SIGHASH_NONE</code> sighashes, and increased by 32 bytes if an annex is present. Note that this does not include the size of sub-hashes such as ''sha_prevouts'', which may be cached across signatures of the same transaction.