摘要
本文详细介绍了一种基于USB智能卡的文件加密方法。系统采用软硬件结合的原则,由软件进行文件加密,硬件负责密钥的管理和会话密钥的加密。利用USB智能卡管理密钥,实现了双因子认证方式;加密时采用公钥算法RSA结合传统加密的杂合算法。系统实现了高安全、高效率、方便易用的文件加密方法;同时,基于USB智能卡的特点,系统可扩充性强。
This paper describes a enpryption method based on usb smart card. The paper introduces the method of combining of software and hardware.Software processes file encryption,and hardware takes charge of key management and conversation key encryption.Using of usb smart card to manage key and achieve authentication of dyhibird.Using of rsa and tradition encryption method,the system achieves highly security ,efficiency and expediency .Simultaneity,based on the characteristic of usb smart card,system possesses highly expansion.
出处
《科技广场》
2006年第7期30-32,共3页
Science Mosaic
