Cryptology ePrint Archive: Report 1999/011

Practical Threshold Signatures

Victor Shoup

Abstract: We present an RSA threshold signature scheme. The scheme enjoys the following properties: it is unforgeable and robust; in the random oracle model, assuming the RSA problem is hard; signature share generation and verification is completely non-interactive; the size of an individual signature share is bounded by a constant times the size of the RSA modulus.

Category / Keywords: digital signature, threshold cryptography, RSA

Publication Info: Appeared in the THEORY OF CRYPTOGRAPHY LIBRARY and has been included in the ePrint Archive.

Date: received April 19, 1999. Revised October 11, 1999.

Contact author: sho at zurich ibm com

Available format(s): Postscript (PS) | Compressed Postscript (PS.GZ) | BibTeX Citation

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