本算法是一个分组算法。该算法的分组长度为128比特，密钥长度为128比特。加密算法与密钥扩展算法都采用32轮非线性迭代结构。-This algorithm is a grouping algorithm. The algorithm s block length is 128 bits, 128 bit key length. Encryption algorithm and key expansion algorithm are used 32 non-linear iterative structure.