可以将文本数据以压缩的方式保存在IC卡中，并且可以全文加密，安全可靠。可以用于数据保存，重要文件传递，档案保存等-The text data can be saved in compressed form in the IC card, and the full text can be encrypted, safe and reliable. It can be used for data storage and transfer important documents, archives,