from some_stark_library import StarkCircuit, generate_proof, verify_proof

def decrypt_file(encrypted_file, key):

# Implement decryption logic

return decrypted_text

def perform_regex_search(decrypted_text, regex):

# Implement regex search logic

return search_result

def create_circuit(encrypted_file, key, regex):

decrypted_text = decrypt_file(encrypted_file, key)

result = perform_regex_search(decrypted_text, regex)

return result

def generate_stark_proof(encrypted_file, key, regex):

circuit = create_circuit(encrypted_file, key, regex)

proof = generate_proof(circuit)

return proof

def verify_stark_proof(proof):

return verify_proof(proof)

# Example usage

proof = generate_stark_proof('encrypted_file.txt', 'decryption_key', 'search_term')

is_valid = verify_stark_proof(proof)

print(f"Proof is valid: {is_valid}")