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applied cryptography - protocols, algorithms, and source code in c

The issuing ca however should maintain a copy of the

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Unformatted text preview: r can collect tickets and then try to decrypt them. Remember that the average user doesn’t usually choose good passwords. If Mallory collects enough tickets, his chances of recovering a password are good. Perhaps the most serious attack involves malicious software. The Kerberos protocols rely on the fact that the Kerberos software is trustworthy. There’s nothing to stop Mallory from surreptitiously replacing all client Kerberos software with a version that, in addition to completing the Kerberos protocols, records passwords. This is a problem with any cryptographic software package on an insecure computer, but the widespread use of Kerberos in these environments makes it a particularly tempting target. Enhancements to Kerberos are in the works, including an implementation of public-key cryptography and a smart-card interface for key management. Licenses Kerberos is not in the public domain, but MIT’s code is freely available. Actually implementing it into a working UNIX environment is another story. Several companies sell versions of Kerberos, but you can get a good version free from Cygnus Support, 814 University Ave., Palo Alto, CA, 94301; (415) 322-3811; fax: (415) 322-3270. Previous Table of Contents Next Products | Contact Us | About Us | Privacy | Ad Info | Home Use of this site is subject to certain Terms & Conditions, Copyright © 1996-2000 EarthWeb Inc. All rights reserved. Reproduction whole or in part in any form or medium without express written permission of EarthWeb is prohibited. Read EarthWeb's privacy statement. To access the contents, click the chapter and section titles. Applied Cryptography, Second Edition: Protocols, Algorthms, and Source Code in C (cloth) Go! Keyword Brief Full Advanced Search Search Tips (Publisher: John Wiley & Sons, Inc.) Author(s): Bruce Schneier ISBN: 0471128457 Publication Date: 01/01/96 Search this book: Go! Previous Table of Contents Next ----------- 24.6 KryptoKnight KryptoKnight (Kryptonite—get it?) is an authentication and key di...
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