基于CY7C68013安全U盘的硬件设计

Hardware design of secret USB disk based on CY7C68013

针对现存安全U盘的不足,提出了一款集数据加/解密、认证、抵抗攻击于一体的大容量安全U盘硬件设计方案,它能够较好地保护密算法和密钥的安全,在超期或非法操作超过一定次数时可自动销毁算法和存储的数据。从安全模型、结构模型等方面进行阐述,重点介绍了USB接口控制模块、数据加/解密、安全芯片操作等几个关键模块的开发,最后从策略、密钥安全等方面对此U盘的安全性进行了整体分析。

Based on the insufficiency of existent secret USB disks, an method of hardware designing for secret USB disk is presented, which integrates data encryption/decryption, passwords authentication, attack counteraction. It can well protect arithmetic and encryption/ decryption key, destroy data automatically while over times or overdate. Security model and framework model are introduced, the details of the design and implementation in USB interface control part, encryption/decryption, security chip operation are introduced emphatically. Finally, the security performance of the secret carrier design is analyzed from encryption policy and key security.