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Paper 2002/017
The Cramer-Shoup Strong-RSA Signature Scheme Revisited
Marc Fischlin
Abstract
We discuss a modification of the Cramer-Shoup strong-RSA signature scheme. Our proposal also presumes the strong RSA assumption (and a collision-intractable hash function for long messages), but -without loss in performance- the size of a signature is almost halved compared to the original scheme. We also show how to turn the signature scheme into a "lightweight" anonymous (but linkable) group identification protocol without random oracles.
Metadata
- Available format(s)
- PDF PS
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- anonymitydigital signaturesidentification protocolsRSA
- Contact author(s)
- marc @ mi informatik uni-frankfurt de
- History
- 2002-02-14: received
- Short URL
- https://ia.cr/2002/017
- License
-
CC BY