Inlämning av Examensarbete / Submission of Thesis

Karl Knutsson , pp. 22. Inst. för programvaruteknik och datavetenskap/Dept. of Software Engineering and Computer Science, 2002.

The work

Författare / Author: Karl Knutsson
pt98kfr@student.bth.se
Titel / Title: Security Without Cost: A Cryptographic Log-structured File System
Översatt titel / Translated title: Säkerhet utan kostnad: Ett kryptografiskt log-strukturerat filsystem
Abstrakt Abstract:

Historically, cryptographic file systems have been several times slower than non-cryptographic file systems. This paper describes the design and implementation of a fast Cryptographic Log-structured File System on OpenBSD. We experimentally demonstrate that our pro-totype file system performs close to the Fast File System (FFS) and the Log-structured File System (LFS). To increase performance, our file system performs most encryption and decryption work during disk read and write operations. This is possible thanks to the SEAL encryption algorithm, a software optimized stream cipher that allows the en-cryption
work to be performed prior to the actual data is available. We believe that our cryptographic file system design is ideal for optimal read and write performance on locally
stored confidential data.

Populärvetenskaplig beskrivning / Popular science summary: Denna uppsats beskriver utvecklingen av ett kryptografiskt
log-strukturerat filsystem och vi visar genom experiment att
dess prestanda är jämförbar med lokala filsystem.
Ämnesord / Subject: Datavetenskap - Computer Science\General

Nyckelord / Keywords: File System, Secure File Storage, Log-structured File System, Cryptography

Publication info

Dokument id / Document id:
Program:/ Programme Programvaruteknik/Software Engineering
Registreringsdatum / Date of registration: 09/16/2004
Uppsatstyp / Type of thesis: D-Uppsats/Magister/Master

Context

Handledare / Supervisor: Rune Gustavsson
rgu@bth.se
Examinator / Examiner: Claes Wohlin
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: Inst. för programvaruteknik och datavetenskap/Dept. of Software Engineering and Computer Science
Inst. för Programvaruteknik och Datavetenskap S-372 25 Ronneby
+46 455 38 50 00
http://www.ipd.bth.se/
Anmärkningar / Comments:

Karl Knutsson
Skiftesgatan 40
332 35 Gislaved
Sweden

Files & Access

Bifogad uppsats fil(er) / Files attached: thesis.pdf (930 kB, öppnas i nytt fönster)