NDLI: A secure multiple-agent cryptographic key recovery system

Content Provider	IEEE Xplore Digital Library
Author	Kanyamee, K. Sathitwiriyawong, C.
Copyright Year	2009
Description	Author affiliation: Faculty of Information Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand (Kanyamee, K.; Sathitwiriyawong, C.)
Abstract	Symmetric cryptography uses the same session key for message encryption and decryption. Without having it, the encrypted message will never be revealed. In case the session key is unavailable or government authorities need to inspect suspect messages, there should be a mechanism to recover it. The recovery of session key is usually provided by a trusted key recovery center as a coordinator among key recovery agents (KRAs). The session key will be recovered on receiving the request from those who are legitimate to view the message. Key recovery can be achieved by a single agent or multiple agents. The latter can enhance the security of the former by mitigating the risks of fabrication and collusion. This paper presents a secure multiple-agent cryptographic key recovery system (SEM-KRS) that uses the simple and flexible principles of secure session key management with appropriated design of key recovery function and the new format of key recovery field. The proposed system has high availability, ability to detect attacks on group authentication, and can recover session key despite the failure of some KRAs. Therefore, the problem of single point of failure can be avoided. System administrators also have flexibility to manage and choose the number of KRAs to meet security requirements. The system also supports law enforcement, and is based on Public Key Infrastructure to provide trusted and authenticated key distribution infrastructure.
Starting Page	91
Ending Page	96
File Size	817021
Page Count	6
File Format	PDF
ISBN	9781424441143
DOI	10.1109/IRI.2009.5211601
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Public key cryptography Privacy Authentication Law enforcement Public key US Government Legal factors Information security Protection Data security Secret Sharing Key Recovery Session Key Key Recovery Agent Key Recovery Center
Content Type	Text
Resource Type	Article

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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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