A Simple Scheme to Make Passwords Based on One-way Functions Much Harder to Crack
Author(s): Udi Manber

Date: 1996
Publication: Computers and Security, Volume 15 Number 2
Page(s): 171 - 179
Publisher: Elsevier Science
Source 1: http://webglimpse.net/pubs/TR94-34.pdf
Source 2: http://dx.doi.org/10.1016/0167-4048(96)00003-X - Subscription or payment required
Source 3: ftp://ftp.cs.arizona.edu/reports/1994/TR94-34.ps

Abstract:
We present a simple scheme that makes guessing passwords based on one-way functions 100 to 1000 times harder. The scheme is easy to program and easy to incrementally add to existing schemes. In particular, there is no need to switch to it all at the same time. Old passwords will still work and have the same security as before (one will not be able to distinguish them from new passwords); newly-entered passwords will become much more secure. The new scheme is independent of the one-way function used and does not require changing any part of the encryption mechanism.



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