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PROVSEC
2010
Springer

Efficient Confirmer Signatures from the "Signature of a Commitment" Paradigm

10 years 8 months ago
Efficient Confirmer Signatures from the "Signature of a Commitment" Paradigm
Generic constructions of designated confirmer signatures follow one of the following two strategies; either produce a digital signature on the message to be signed, then encrypt the resulting signature, or produce a commitment on the message, encrypt the string used to generate the commitment and finally sign the latter. We study the second strategy by determining the exact security property needed in the encryption to achieve secure constructions. This study infers the exclusion of a useful type of encryption from the design due to an intrinsic weakness in the paradigm. Next, we propose a simple method to remediate to this weakness and we get efficient constructions which can be used with any digital signature.
Laila El Aimani
Added 14 Feb 2011
Updated 14 Feb 2011
Type Journal
Year 2010
Where PROVSEC
Authors Laila El Aimani
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