Fix access list storage key conversion for deployment transaction signing

[abchauditor]

… hex string during comfirmation

Description

When sending transactions with wake run, eth_createAccessList returns storage keys as hex strings, but the Rust sign_transaction expects them as integers.
This caused a TypeError: 'str' object cannot be interpreted as an integer on every transaction with a non-empty access list.

Fixed by making hex value integer in python for AccessListItem in rust, and still make show hex string during comfirmation.

Note

Medium Risk
Touches transaction access-list handling across deployment, JSON-RPC encoding, and Rust conversion code; incorrect conversion could lead to malformed signed transactions or misleading confirmation output.

Overview
Fixes accessList storageKeys conversion to use consistent 32-byte big-endian encoding/decoding across the stack.

Deployment now converts eth_createAccessList results (hex strings) into integer storage keys for internal tx building, and the confirmation prompt re-encodes those keys back to 0x-prefixed 32-byte hex for display. JSON-RPC tx param encoding similarly serializes accessList.storageKeys from ints to properly padded hex strings, and the Rust tx_params_access_list_convert switches from little-endian to big-endian with left-padding when building B256 keys.

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Testing path stores hex strings but encoder expects integers

High Severity

The updated _encode_tx_params now calls k.to_bytes(32, "big") on storageKeys, assuming they are integers. However, wake/testing/core.py line 314 still assigns tx["accessList"] = response["accessList"] directly from eth_createAccessList, where storage keys are hex strings. When a test uses accessList="auto" with a non-empty access list, any call through _encode_tx_params (e.g., send_transaction, estimate_gas, send_unsigned_transaction) will raise an AttributeError because str has no .to_bytes() method. The deployment path was correctly updated to convert hex to int, but the testing path was not.

Additional Locations (1)

• wake/deployment/core.py#L442-L453