Towards tamper-evident storage on patterned media

  • Authors:
  • Pieter H. Hartel;Leon Abelmann;Mohammed G. Khatib

  • Affiliations:
  • Fac. of Electrical Engineering, Mathematics and Computer Science, Univ. of Twente, Enschede, The Netherlands;Fac. of Electrical Engineering, Mathematics and Computer Science, Univ. of Twente, Enschede, The Netherlands;Fac. of Electrical Engineering, Mathematics and Computer Science, Univ. of Twente, Enschede, The Netherlands

  • Venue:
  • FAST'08 Proceedings of the 6th USENIX Conference on File and Storage Technologies
  • Year:
  • 2008

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Abstract

We propose a tamper-evident storage system based on probe storage with a patterned magnetic medium. This medium supports normal read/write operations by out-of-plane magnetisation of individual magnetic dots. We report on measurements showing that in principle the medium also supports a separate class of write-once operation that destroys the out-of-plane magnetisation property of the dots irreversibly by precise local heating. We discuss the main issues of designing a tamper-evident storage device and file system using the properties of the medium.