NDLI: Misplaced trust: Kerberos 4 session keys

Content Provider	IEEE Xplore Digital Library
Author	Dole, B. Lodin, S. Spafford, E.
Copyright Year	1997
Description	Author affiliation: Sun Microsyst., Mountain View, CA, USA (Dole, B.)
Abstract	One of the commonly accepted principles of software design for security is that making the source code openly available leads to better security. The presumption is that the open publication of source code will lead others to review the code for errors, however this openness is no guarantee of correctness. One of the most widely published and used pieces of security software in recent memory is the MIT implementation of the Kerberos authentication protocol. In the design of the protocol, random session keys are the basis for establishing the authenticity of service requests. Because of the way that the Kerberos Version 4 implementation selected its random keys, the secret keys could easily be guessed in a matter of seconds. This paper discusses the difficulty of generating good random numbers, the mistakes that were made in implementing Kerberos Version 4, and the breakdown of software engineering that allowed this flaw to remain unfixed for ten years. We discuss this as a particularly notable example of the need to examine security-critical code carefully, even when it is made publicly available.
Starting Page	60
Ending Page	70
File Size	1110490
Page Count	11
File Format	PDF
ISBN	0818677678
DOI	10.1109/NDSS.1997.579221
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-02-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Random number generation Computer security Protocols Testing Sun Laboratories Error correction codes Open source software Authentication Electric breakdown
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Misplaced Trust: Kerberos 4 Session Keys (1997)

Misplaced trust: kerberos 4 session keys (1997).

Misplaced Trust: Kerberos 4 Session Keys (1997)

I\flSPLACED TRUST: KERBEROS 4 SESSION KEYS (1996)

Long message authentication using pseudo-random functions

An optimized Kerberos authentication protocol

Security weaknesses of WEP protocol IEEE 802.11b and enhancing the security with dynamic keys

Feedback-Directed Random Test Generation

Extending the Strand Space Method to Verify Kerberos V

Misplaced trust: Kerberos 4 session keys

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Misplaced trust: Kerberos 4 session keys