#064: Cross-Contract Call Reentrancy Lock using Host Invocation Key

[bakarezainab]

#64: Cross-Contract Call Reentrancy Lock using Host Invocation Key

Overview

Secure token transfer entry points by implementing an advanced reentrancy protection check using host invocation key inspections.

Objectives

• Intercept reentrancy attempts during cross-contract token transfers.
• Implement strict call stack depth limits.
• Prevent attacker contracts from recalling task payout functions recursively.

Acceptance Criteria

• Advanced host invocation key validation guard.
• Security test suite simulating malicious callback contracts.
• Clean compilation and execution under all testing profiles.