use Crypto.Hash instead of hashlib

pyband/wallet/public_key.py

@@ -2,6 +2,7 @@
 from typing import Optional
 
 from bech32 import bech32_decode, convertbits, bech32_encode
+from Crypto.Hash import RIPEMD160
 from ecdsa.curves import SECP256k1
 from ecdsa.keys import VerifyingKey, BadSignatureError
 
@@ -153,7 +154,7 @@ def to_address(self) -> Address:
         """
 
         hash = hashlib.new("sha256", self.verify_key.to_string("compressed")).digest()
-        return Address(hashlib.new("ripemd160", hash).digest())
+        return Address(RIPEMD160.new(hash).digest())
 
     def verify(self, msg: bytes, sig: bytes) -> bool:
         """Verify a signature made from the given message.

tests/cosmos_app_test.py

@@ -6,6 +6,7 @@
 import pytest
 from bech32 import bech32_encode, convertbits
 from bip32 import BIP32
+from Crypto.Hash import RIPEMD160
 from ecdsa.curves import SECP256k1
 from ecdsa.der import encode_sequence, encode_integer, remove_sequence, remove_integer
 from ecdsa.keys import SigningKey
@@ -88,7 +89,7 @@ def _ins_get_addr_secp256k1(self, p1: int, data: bytes):
         )
 
         verifying_key = signing_key.get_verifying_key()
-        addr = hashlib.new("ripemd160", hashlib.new("sha256", verifying_key.to_string("compressed")).digest()).digest()
+        addr = RIPEMD160.new(hashlib.new("sha256", verifying_key.to_string("compressed")).digest()).digest()
         five_bit_r = convertbits(addr, 8, 5)
         return verifying_key.to_string("compressed") + bytes(bech32_encode("band", five_bit_r), "utf-8")