Abstract
The notion of on-line/off-line signature schemes was introduced in 1990 by Even, Goldreich and Micali. They presented a general method for converting any signature scheme into an on-line/off-line signature scheme, but their method is not very practical as it increases the length of each signature by a quadratic factor. In this paper we use the recently introduced notion of a trapdoor hash function to develop a new paradigm called hash-sign-switch, which can convert any signature scheme into a highly efficient on-line/off-line signature scheme: In its recommended implementation, the on-line complexity is equivalent to about 0.1 modular multiplications, and the size of each signature increases only by a factor of two. In addition, the new paradigm enhances the security of the original signature scheme since it is only used to sign random strings chosen off-line by the signer. This makes the converted scheme secure against adaptive chosen message attacks even if the original scheme is secure only against generic chosen message attacks or against random message attacks.
Chapter PDF
Similar content being viewed by others
References
Shimon Even, Oded Goldreich, and Silvio Micali, On-line/off-line Digital Signatures. In Advances in Cryptology: Crypto’ 89, pp 263–277. August 1990. Springer.
Shafi Goldwasser, Silvio Micali, and Ron Rivest, A Digital Signature Scheme Secure Against Adaptive Chosen-Message Attacks, SIAM J. on Computing, 17, pp 281–308, 1988.
Hugo Krawczyk and Tal Rabin, Chameleon Signatures. In Symposium on Network and Distributed Systems Security (NDSS’ 00), pp 143–154, February 2000, Internet Society.
Gary Miller, Riemann’s Hypothesis and Tests for Primality, J. Comp. Sys. Sci., 13:300–317, 1976.
Michael Rabin, Digitized Signatures as Intractable as Factorization, Technical Report MIT/LCS TR-212, January 1979.
Ron Rivest, Adi Shamir, and Len Adleman, A Method of Obtaining Digital Signatures and Public-Key Cryptosystems, CACM, 21(2), pp 120–126, February 1978.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Shamir, A., Tauman, Y. (2001). Improved Online/Offline Signature Schemes. In: Kilian, J. (eds) Advances in Cryptology — CRYPTO 2001. CRYPTO 2001. Lecture Notes in Computer Science, vol 2139. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44647-8_21
Download citation
DOI: https://doi.org/10.1007/3-540-44647-8_21
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-42456-7
Online ISBN: 978-3-540-44647-7
eBook Packages: Springer Book Archive