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An Error in the Mixed Adversary Protocol by Fitzi, Hirt and
Maurer
Ivan B. Damgård February 1999 |
Abstract:
We point out an error in the protocol for mixed adversaries and
zero error from the Crypto 98 paper by Fitzi, Hirt and Maurer. We show that
the protocol only works under a stronger requirement on the adversary than
the one claimed. Hence the bound on the adversary's corruption capability
given there is not tight. Subsequent work has shown, however, a new bound
which is indeed tight
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