Server assisted signatures revisited

Date

2004-01-01

Author

Bicakci, Kemal
Baykal, Nazife

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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One of the main objectives of server-assisted computation is to reduce the cost of generating public key signatures for ordinary users with their constrained devices. On the other hand, based on nothing more than a one-way function, one-time signatures provide an attractive alternative to public key signatures. This paper revisits server assisted computation for digital signatures to show server assisted one-time signature (SAOTS) that combines the benefits of these two efficiency solutions. The proposed protocol turns out to be a more computational and round-efficient protocol than previous verifiable-server approaches. In addition, SAOTS offers other advantages like verification transparency, getting rid of public key operations for the ordinary user and proving the server's cheating without storing the signatures.

Subject Keywords

Server-assisted signature, One-time signature;, Digital signature, Pervasive computing

URI

https://hdl.handle.net/11511/55319

Journal

TOPICS IN CRYPTOLOGY - CT-RSA 2004, PROCEEDINGS

DOI

https://doi.org/10.1007/978-3-540-24660-2_12

Collections

Graduate School of Informatics, Article

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Improved server assisted signatures Bicakci, K; Baykal, Nazife (2005-02-21) It is well known that excessive computational demands of public key cryptography have made its use limited especially when constrained devices are of concern. To reduce the costs of generating public key signatures one viable method is to employ a third party; the server. In open networks, getting help from a verifiable-server has an advantage over proxy-based solutions since as opposed to proxy-server, verifiable-server's cheating can be proven.
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Citation Formats

K. Bicakci and N. Baykal, “Server assisted signatures revisited,” TOPICS IN CRYPTOLOGY - CT-RSA 2004, PROCEEDINGS, pp. 143–156, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55319.