Merge pull request bitcoin#1142 from RCasatta/lift_x

remove int_from_bytes in lift_x call since it is done internally
jspada · Jul 20, 2021 · 9b861c2 · 9b861c2
2 parents 99701f6 + 9cf5c72
commit 9b861c2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/bip-0341.mediawiki b/bip-0341.mediawiki
@@ -180,7 +180,7 @@ 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_from_bytes(pubkey)), point_mul(G, t))
+    Q = point_add(lift_x(pubkey), point_mul(G, t))
     return 0 if has_even_y(Q) else 1, bytes_from_int(x(Q))
 
 def taproot_tweak_seckey(seckey0, h):