一种基于U盾的文件虚拟化加密系统的设计与实现

Design and Realization of a File Virtualization Encryption System Based on U Shield

针对TrueCrypt存在的安全缺陷,设计并实现了一种基于U盾的文件虚拟化加密系统.系统实现了密钥与被加密数据的物理分离,对卷首加密因子"盐"进行了加密保护,并实现了U盾文件的防拷贝技术.经过测试证明,本系统弥补了TrueCrypt存在的潜在安全隐患,提高了TrueCrypt的安全性.

Coping with the potential security flaw existing in TrueCrypt, a file virtualization encryption system based on U shield is designed and implemented. This system realizes the physical separation of the key from the encrypted data, the protection of encryption factor ＂salt＂, and an an- ti-copy technology used on files of U shield. The experiments have proved that the system makes up for the potential security flaws existing in TrueCrypt, and thus improves its security.