Title :
Secure Disk with Authenticated Encryption and IV Verification
Author :
Hou, Fangyong ; Xiao, Nong ; Liu, Fang ; He, Hongjun
Author_Institution :
Sch. of Comput., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
To protect hard disk data confidentiality and integrity, AEIVV associates one unique IV with each disk sector; then, it applies authenticated encryption of AES-CCM to the protected sector and constructs hash tree upon IV storage. Through assuring IV to be trusted or un-tampered, data can be protected firmly. To make it an available way for disk protection, various optimizing measures are applied to quicken the running speed. With the emphasis of reducing extra latencies caused by protection, IV/MAC storage is allocated using interlaced layout to decrease seek time of disk I/O, IV checking penalty is reduced by buffering the frequently used hash tree nodes and IV/MAC values. Related approaches are elaborated, as well as experimental results. It shows that AEIVV is a practical and available way to build secure disk.
Keywords :
cryptography; hard discs; message authentication; trees (mathematics); AES-CCM; IV verification; MAC storage; authenticated encryption; disk data security; hard disk data confidentiality; hard disk data integrity; hash tree; initialization vector verification; message authentication code; Buffer storage; Computer security; Counting circuits; Cryptography; Data security; Helium; Information security; National security; Protection; Velocity measurement; IV; authenticated encryption; disk; verification;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xian
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.48
