signature test

test.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+
+from dotenv import load_dotenv
+from os import getenv
+from eth_account import Account
+from eth_account.messages import encode_defunct
+from sha3 import keccak_256
+from eth_abi.packed import encode_packed
+from eth_utils import to_bytes
+ 
+load_dotenv()
+
+
+def signer_check(message, signature):
+
+    message_hash = encode_defunct(message)
+    signer_address = Account.recover_message(message_hash, signature=signature)
+
+    return signer_address
+
+signature = 1
+
+def sign_message(message, private_key):
+    account = Account.from_key(private_key)
+    message_hash = encode_defunct(message)
+    signature = account.sign_message(message_hash)
+    return signature.signature.hex()
+
+def generate_hash(pix_target, amount, pix_timestamp):
+    # Concatenate the bytes
+    concatenated_bytes = encode_packed(
+        ['bytes32', 'uint80', 'uint256'],
+        [to_bytes(text=pix_target), amount, pix_timestamp]) 
+
+    # Return the keccak256 hash
+    return keccak_256(concatenated_bytes).digest()
+
+# Example usage
+pix_target = '1234'
+amount = 10
+pix_timestamp = 162
+
+message = generate_hash(pix_target, amount, pix_timestamp)
+print("Message:", message.hex())
+signature = sign_message(message, getenv('PRIVATE_KEY'))
+print("Signature:", signature)
+signer = signer_check(message, signature)
+print("Signer: ", signer)
+account = Account.from_key(getenv('PRIVATE_KEY'))
+print("Account:", account.address)