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Weaknesses of protocols for updating the parameters of an established threshold scheme

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2 Author(s)
Martin, K.M. ; Inf. Security Group, London Univ., UK ; Nakahara, J., Jr.

Threshold schemes are adaptable cryptographic primitives that distribute trust in secret data by requiring k out of n entities to co-operate before the data can be recovered. An important security management issue relating to threshold schemes is the problem of updating the parameters of a threshold scheme. The paper discusses serious shortcomings in two proposed protocols for threshold parameter update

Published in:

Computers and Digital Techniques, IEE Proceedings -  (Volume:148 ,  Issue: 1 )