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bip327: minor fixes

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- An error test vector doesn’t specify the InvalidContributionError type
- In *DeterministicSign*, use GetXonlyPubkey instead of GetPubkey
- The key_agg_and_tweak fn doesn’t specify the return type
- In partial_sig_verify_internal, the pubkey arg should be PlainPk
- Remove unused enumerate() fn calls
- In test_sign_verify, add an additional assert statement
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siv2r
2024-07-17 15:32:20 +05:30
parent af8f9e470b
commit 1c6ac0c4cf
4 changed files with 19 additions and 14 deletions
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bip-0327.mediawiki
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@@ -619,7 +619,7 @@ Algorithm ''DeterministicSign(sk, aggothernonce, pk<sub>1..u</sub>, tweak<sub>1.
* Let ''keyagg_ctx<sub>0</sub> = KeyAgg(pk<sub>1..u</sub>)''; fail if that fails
* For ''i = 1 .. v'':
** Let ''keyagg_ctx<sub>i</sub> = ApplyTweak(keyagg_ctx<sub>i-1</sub>, tweak<sub>i</sub>, is_xonly_t<sub>i</sub>)''; fail if that fails
* Let ''aggpk = GetPubkey(keyagg_ctx<sub>v</sub>)''
* Let ''aggpk = GetXonlyPubkey(keyagg_ctx<sub>v</sub>)''
* Let ''k<sub>i</sub> = int(hash<sub>MuSig/deterministic/nonce</sub>(sk' || aggothernonce || aggpk || bytes(8, len(m)) || m || bytes(1, i - 1))) mod n'' for ''i = 1,2''
* Fail if ''k<sub>1</sub> = 0'' or ''k<sub>2</sub> = 0''
* Let ''R<sub>⁎,1</sub> = k<sub>1</sub>⋅G, R<sub>⁎,2</sub> = k<sub>2</sub>⋅G''