Efficient extension of standard Schnorr/RSA signatures into Universal Designated-Verifier Signatures
Steinfeld, Ron, Wang, Huaxiong, & Pieprzyk, Josef (2004) Efficient extension of standard Schnorr/RSA signatures into Universal Designated-Verifier Signatures. Lecture Notes in Computer Science : Public Key Cryptography – PKC 2004, 2947, pp. 86-100.
Universal Designated-Verifier Signature (UDVS) schemes are digital signature schemes with additional functionality which allows any holder of a signature to designate the signature to any desired designated-verifier such that the designated-verifier can verify that the message was signed by the signer, but is unable to convince anyone else of this fact.
Since UDVS schemes reduce to standard signatures when no verifier designation is performed, it is natural to ask how to extend the classical Schnorr or RSA signature schemes into UDVS schemes, so that the existing key generation and signing implementation infrastructure for these schemes can be used without modification. We show how this can be efficiently achieved, and provide proofs of security for our schemes in the random oracle model.
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|Item Type:||Journal Article|
|Additional Information:||Paper presented the 7th International Workshop on Theory and Practice in Public Key Cryptography, Singapore, March 1-4, 2004. Print ISBN 978-3-540-21018-4|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Deposited On:||07 Jul 2014 23:48|
|Last Modified:||15 Jul 2014 02:53|
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