Abstract
The ESIGN signature scheme was provided with an inadequate proof of security. We propose two techniques to repair the scheme, which we name ESIGN-D and ESIGN-R. Another improvement of ESIGN is encouraged, where the public key is hashed together with the message. This allows to have a security proof in the multi key setting. Additionally, the lower security of ESIGN compared to RSA-PSS leads to suggest that a common public key is used for ESIGN and RSA-PSS, leaving to the signer the choice between fast signature or better security.
Part of this work has been supported by the Commission of the European Communities through the IST Programme under Contract IST-1999-12324 (NESSIE). This paper is NESSIE document NES/DOC/ENS/WP5/019/3 and is published in the proceedings of SCN’02 Springer Verlag.
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© 2003 Springer-Verlag Berlin Heidelberg
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Granboulan, L. (2003). How to Repair ESIGN. In: Cimato, S., Persiano, G., Galdi, C. (eds) Security in Communication Networks. SCN 2002. Lecture Notes in Computer Science, vol 2576. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36413-7_17
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DOI: https://doi.org/10.1007/3-540-36413-7_17
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