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Threshold key issuing in identity-based cryptosystems

delete2007-02-01
delete19
PRE
AI
R
Raju Gangishetti
M
M. Choudary Gorantla
M
Manik Lal Das
A
Ashutosh Saxena *
DOI：10.1016/j.csi.2006.05.001delete
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Abstract

Abstract

En 中文
Secure key issuing in identity-based cryptosystems is a challenging task due to the inherent drawback of key escrow. Several protocols have been proposed for key issuing which do not require secure channel and eliminate key escrow problem. However, the existing secure and efficient protocol requires all the participating authorities to be mandatorily available for constructing the user's private key. We present a secure and robust protocol for key issuing in identity-based cryptosystems by using the concept of threshold cryptosystems, which avoids the practical limitation. (c) 2006 Elsevier B.V All rights reserved.
Keywords:
ID-based cryptosystems
bilinear pairings
key escrow
threshold cryptosystems
key issuing
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Journal

C
Computer Standards and Interfaces
IF:
3.1
Papers:
2.3K
Citations:
2.0K

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