On the Encipherment of Search Trees and Random Access Files.

Rudolf Bayer, J. K. Metzger: On the Encipherment of Search Trees and Random Access Files. VLDB 1975: 452

@inproceedings{DBLP:conf/vldb/BayerM75,
  author    = {Rudolf Bayer and
               J. K. Metzger},
  editor    = {Douglas S. Kerr},
  title     = {On the Encipherment of Search Trees and Random Access Files},
  booktitle = {Proceedings of the International Conference on Very Large Data
               Bases, September 22-24, 1975, Framingham, Massachusetts, USA},
  publisher = {ACM},
  year      = {1975},
  pages     = {452},
  ee        = {db/conf/vldb/BayerM75.html},
  crossref  = {DBLP:conf/vldb/75},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

The securing of information in indexed, random access files by means of privacy transformations must be considered as a problem distinct from that for sequential files. Not only must processing overhead due to encrypting be considered, but also must threats to encipherment arising from updating and the file structure itself be countered. A general encipherment scheme is proposed for files maintained in a paged structure on secondary storage. This is then applied to the encipherment of indexes organized as B-trees, a particular type of multiway search tree. Threats to the encipherment of B-trees, especially relating to updating, are examined, and countermeasures proposed for each. In addition, the effect of encipherment onfile access and update, on paging mechanisms, and on files related to the enciphered index are discussed. Many of the concepts presented here may be readily transferred to other forms of multiway index trees and to binary search trees.

Copyright © 1975 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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Printed Edition

Douglas S. Kerr (Ed.): Proceedings of the International Conference on Very Large Data Bases, September 22-24, 1975, Framingham, Massachusetts, USA. ACM 1975
Contents

Journal Version

Rudolf Bayer, J. K. Metzger: On the Encipherment of Search Trees and Random Access Files. ACM Trans. Database Syst. 1(1): 37-52(1976)