Cryptfs: A Stackable Vnode Level Encryption File System (1998) [67 citations — 11 self]
http://www.cs.columbia.edu/~library/TR-repository/
http://www.fsl.cs.sunysb.edu/docs/cryptfs/cryptfs.
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author = {Erez Zadok and Ion Badulescu and Alex Shender},
title = {Cryptfs: A Stackable Vnode Level Encryption File System},
institution = {},
year = {1998}
}
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Abstract:
Data encryption has become an increasingly important factor in everyday work. Users seek a method of securing their data with maximum comfort and minimum additional requirements on their part; they want a security system that protects any files used by any of their applications, without resorting to application-specific encryption methods. Performance is an important factor to users since encryption can be time consuming. Operating system vendors want to provide this functionality but without incurring the large costs of developing a new file system. This paper describes the design and implementation of Cryptfs --- a file system that was designed as a stackable Vnode layer loadable kernel module[5, 15, 19]. Cryptfs operates by "encapsulating" a client file system with a layer of encryption transparent to the user. Being kernel resident, Cryptfs performs better than user-level or NFS based file servers such as CFS[2] and TCFS[3]. It is 2 to 37 times faster on micro-benchmarks such as re...
