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In order to minimize the damage caused by key exposure in aggregate signatures, a key-insulated aggregate signature scheme is proposed in this paper. We give the definition and the security model of the key-insulated aggregate signature. We also construct a concrete key-insulated aggregate signature scheme that meets our definition. Our scheme has the properties of efficient verification and short...
A short key-insulated aggregate signature scheme with specified verifier is proposed in this paper. Our scheme is obtained from a modification of Dodis' strong key-insulated signature scheme. The characteristics of the scheme are as follows: (1). Satisfy strong key-insulated security that minimizes the damage caused by key-exposure; (2). Have properties of short signature; (3). Only the specified...
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