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| author | kallewoof <karljohan-alm@garage.co.jp> | 2023-01-04 10:33:15 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-04 10:33:15 +0900 |
| commit | c6725580c53f6478239751fefbb199d3c08ed1c9 (patch) | |
| tree | 6508a9511354022336aba43ad51c4d04d50ec4d2 | |
| parent | 15c8203eb36304efa1e4588b950f62a5bb32f965 (diff) | |
| parent | be340277fcaa57a813a898700c1aef9637cfa90e (diff) | |
| download | bips-c6725580c53f6478239751fefbb199d3c08ed1c9.tar.xz | |
Merge pull request #1386 from jonasnick/fix-taproot-tweak-pubkey
BIP 341: Fix taproot_tweak_pubkey
| -rw-r--r-- | bip-0341.mediawiki | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/bip-0341.mediawiki b/bip-0341.mediawiki index 504514e..17a1797 100644 --- a/bip-0341.mediawiki +++ b/bip-0341.mediawiki @@ -182,7 +182,10 @@ def taproot_tweak_pubkey(pubkey, h): t = int_from_bytes(tagged_hash("TapTweak", pubkey + h)) if t >= SECP256K1_ORDER: raise ValueError - Q = point_add(lift_x(int(pubkey)), point_mul(G, t)) + P = lift_x(int_from_bytes(pubkey)) + if P is None: + raise ValueError + Q = point_add(P, point_mul(G, t)) return 0 if has_even_y(Q) else 1, bytes_from_int(x(Q)) def taproot_tweak_seckey(seckey0, h): |