diff options
| -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): |