简单的UDS诊断服务，你也是第一次学吧，那就把算法送给你吧

def generate_seed():
    return random.randint(0, 0xFFFFFFFF)

def calculate_key(seed):
    key = seed ^ 0xA5A5A5A5
    key = ((key << 3) | (key >> 29)) & 0xFFFFFFFF
    key = (key + 0x12345678) & 0xFFFFFFFF
    return key
​