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Short signature schemes are useful for systems where signatures are typed in by a human or for systems with low-bandwidth channels and/or low-computation power such as PDAs or cell phones. In this paper, a new short signature scheme is proposed. Our scheme is more efficient than Zhang et al.'s scheme and BLS scheme. Based on the hardness of k-CAA problem, we provide a rigorous proof for our scheme...
A restricted universal designated verifier signature scheme proposed by Huang et al., which is a variant of digital signatures, allows a signature holder to convince at most t designated verifiers.The signature will become publicly verifiable when the signature holder uses the signature for t+1 times.The applications of this type of signatures are expected to, for example, trial services or electronic...
The notion of limited verifier signature (LVS) was first introduced by Araki et al. in 1999. It is a useful cryptographic primitive to limit the publicly verifiable property of ordinary digital signatures. In a LVS, the signature can be verified by a limited verifier. When necessary, the signer or the limited verifier can provide a proof to convince a designated verifier (eg., a judge) that the signer...
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