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Merge pull request #1231 from GambolingPangolin/bip341-link-fix

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Fixes a link in BIP 341
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kallewoof 2021-11-11 23:26:44 +09:00 committed by GitHub
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@ -167,7 +167,7 @@ Alice will not be able to notice the script path, but Mallory can unilaterally s
</ref> </ref>
* The remaining scripts should be organized into the leaves of a binary tree. This can be a balanced tree if each of the conditions these scripts correspond to are equally likely. If probabilities for each condition are known, consider constructing the tree as a Huffman tree. * The remaining scripts should be organized into the leaves of a binary tree. This can be a balanced tree if each of the conditions these scripts correspond to are equally likely. If probabilities for each condition are known, consider constructing the tree as a Huffman tree.
'''Computing the output script''' Once the spending conditions are split into an internal key <code>internal_pubkey</code> and a binary tree whose leaves are (leaf_version, script) tuples, the output script can be computed using the Python3 algorithms below. These algorithms take advantage of helper functions from the [bip-0340/referency.py BIP340 reference code] for integer conversion, point multiplication, and tagged hashes. '''Computing the output script''' Once the spending conditions are split into an internal key <code>internal_pubkey</code> and a binary tree whose leaves are (leaf_version, script) tuples, the output script can be computed using the Python3 algorithms below. These algorithms take advantage of helper functions from the [[bip-0340/reference.py|BIP340 reference code]] for integer conversion, point multiplication, and tagged hashes.
First, we define <code>taproot_tweak_pubkey</code> for 32-byte [[bip-0340.mediawiki|BIP340]] public key arrays. First, we define <code>taproot_tweak_pubkey</code> for 32-byte [[bip-0340.mediawiki|BIP340]] public key arrays.
The function returns a bit indicating the tweaked public key's Y coordinate as well as the public key byte array. The function returns a bit indicating the tweaked public key's Y coordinate as well as the public key byte array.