密码技术是一门源远流长的学科,早在3000年以前,古埃及文化时期就已经有了相当发展。为了记载历代法老王朝的业绩,当时有些擅长书写的人,在刻记墓碑的铭文时,采用了一些以奇特的象形符号来替代当时普遍使用象形 Cryptography is a well-established subject. As early as 3000 years ago, the ancient Egyptian culture had enjoyed considerable development. In order to record the performance of the pharaohs of the past dynasties, some people who were good at writing at the time used engraving the inscriptions on the tombstones to replace the commonly used pictograms with peculiar pictograms