diff options
Diffstat (limited to 'bip-taproot.mediawiki')
| -rw-r--r-- | bip-taproot.mediawiki | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/bip-taproot.mediawiki b/bip-taproot.mediawiki index 527e1bc..b2d45a3 100644 --- a/bip-taproot.mediawiki +++ b/bip-taproot.mediawiki @@ -210,11 +210,11 @@ The function <code>taproot_output_script</code> returns a byte array with the sc [[File:bip-taproot/tree.png|frame|This diagram shows the hashing structure to obtain the tweak from an internal key ''P'' and a Merkle tree consisting of 5 script leaves. ''A'', ''B'', ''C'' and ''E'' are ''TapLeaf'' hashes similar to ''D'' and ''AB'' is a ''TapBranch'' hash. Note that when ''CDE'' is computed ''E'' is hashed first because ''E'' is less than ''CD''.]] -'''Spending using the internal key''' A Taproot output can be spent with the private key corresponding to the <code>internal_pubkey</code>. To do so, a witness stack consists of a single element: a bip-schnorr signature on the signature hash as defined above, with the private key tweaked by the same <code>t</code> as in the above snippet. In the code below, <code>internal_privkey</code> has a method <code>pubkey_gen</code> that returns a public key according to bip-schnorr and a boolean indicating the quadratic residuosity of the Y coordinate of the underlying point. +'''Spending using the key path''' A Taproot output can be spent with the private key corresponding to the <code>internal_pubkey</code>. To do so, a witness stack consists of a single element: a bip-schnorr signature on the signature hash as defined above, with the private key tweaked by the same <code>t</code> as in the above snippet. In the code below, <code>internal_privkey</code> has a method <code>pubkey_gen</code> that returns a public key according to bip-schnorr and a boolean indicating the quadratic residuosity of the Y coordinate of the underlying point. See the code below: <source lang="python"> -def taproot_sign_internal_key(script_tree, internal_privkey, hash_type): +def taproot_sign_key(script_tree, internal_privkey, hash_type): internal_pubkey, is_y_qresidue = internal_privkey.pubkey_gen() if is_y_qresidue: internal_privkey = internal_privkey.negate() |