Before revision:  We proposed two key characteristics that must be met in order to achieve "unbreakable" security attributes and their corresponding evaluationquaternions. Second, we summarized and implemented four algorithms that can be used to construct UBM, and verified the " unhackable " security attributes based on the evaluation of the two key features.
After revision:  We proposed two key characteristics that must be met in order to achieve "unbreakable" security attribute, and their relevant tetrad for evaluation. Then, we worked out and implemented four algorithms that can be used to construct UBM, and verified the " unhackable " security attributes based on the evaluation of the two key features.