要設計一個新的區塊加密方法大致可分為兩種方式：一種是設計一個
新的運算方式與結構方法；另一種則是組合現存的區塊加密法。現有的區
塊加密方法組合方式是 product cipher 與 cascade cipher。我們在這
篇論文將提出一個新的區塊加密法組合方式─混和式區塊加密法，作為組
合區塊加密方法的另一種選擇。

To design a new block cipher, one way is to use some new
mathematical operation and computing structures; another is to
combine the existing block ciphers. The subsistent methods for
combining block ciphers are product ciphers and cascade ciphers.
In this paper, we propose a new method for combination of block
ciphers, hybrid block ciphers, to be an alternative way of
combining block ciphers.