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Paper 2006/245

Secure and Efficient Threshold Key Issuing Protocol for ID-based Cryptosystems

K. Phani Kumar and G. Shailaja and Ashutosh Saxena

Abstract

Key issuing protocols deal with overcoming the two inherent problems: key escrow and secure channel requirement of the identity based cryptosystems. An efficient key issuing protocol enables the identity based cryptosystems to be more acceptable and applicable in the real world. We present a secure and efficient threshold key issuing protocol. In our protocol, neither KGC nor KPA can impersonate the users to obtain the private keys and thus it achieves the trust level III \cite{girault}. The protocol is secure against replay, man-in-the-middle and insider attacks.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
key escrowthreshold cryptography
Contact author(s)
kpkumar @ mtech idrbt ac in
History
2006-07-19: received
Short URL
https://ia.cr/2006/245
License
Creative Commons Attribution
CC BY
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