Abstract
Because the Internet is vast and insecure, strong cryptographic protocols are required to support secure communication. In this paper, we propose an efficient way to perform secure delegations in a hierarchical group. We propose a practical multi-proxy signature scheme applicable to hierarchial organization using the Diffie-Hellman problem and secret sharing without secure channels. In addition, we improve the proposed scheme to a dynamic one allowing repeated delegations.
This work was supported by the Brain Korea 21 Project in 2004.
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Park, SY., Lee, SH. (2005). Multi-proxy Signatures Based on Diffie-Hellman Problems Allowing Repeated Delegations. In: Shimojo, S., Ichii, S., Ling, TW., Song, KH. (eds) Web and Communication Technologies and Internet-Related Social Issues - HSI 2005. HSI 2005. Lecture Notes in Computer Science, vol 3597. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11527725_36
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DOI: https://doi.org/10.1007/11527725_36
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