@ -322,7 +322,7 @@ class ECPubKey():
u1 = z*w % SECP256K1_ORDER
u2 = r*w % SECP256K1_ORDER
R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, u1), (self.p, u2)]))
if R is None or R[0] != r:
if R is None or (R[0] % SECP256K1_ORDER) != r:
return False
return True