Capture resilient ElGamal signature protocols
Author
Acan, Hüseyin
Kaya, Kamer
Selçuk, Ali Aydın
Date
2006-11Source Title
21th International Symposium on Computer and Information Sciences – ISCIS 2006
Print ISSN
0302-9743
Publisher
Springer
Pages
943 - 951
Language
English
Type
Conference PaperItem Usage Stats
132
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Abstract
One of the fundamental problems of public key cryptography is protecting the private key. Private keys are too long to be remembered by the user, and storing them in the device which performs the private key operation is insecure as long as the device is subject to capture. In this paper, we propose server-assisted protocols for the ElGamal signature scheme which make the system capture resilient in the sense that the security of the system is not compromised even if the signature device is captured. The protocols also have a key disabling feature which allows a user to disable the device's private key in case both the device and the password of the user are compromised simultaneously. © Springer-Verlag Berlin Heidelberg 2006.
Keywords
Network protocolsProblem solving
Security of data
Servers
User interfaces
ElGamal signature
Server assisted protocols
Electronic document identification systems