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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/12139

Title: A Unified Approach to Secret Sharing Schemes with Low Distribution Cost
Authors: Chien, Hung-Yu;Jan, Jinn-Ke;Tseng, Yuh-Min
Contributors: 數學系
Keywords: Cryptography;Secret sharing
Date: 2002-11
Issue Date: 2012-07-03T03:43:30Z
Publisher: Taylor&Francis
Abstract: In secret sharing schemes, the secret holder has to distribute secret shares to each participant before distributing the secrets. To distribute or redistribute shares is a very costly process with respect to both time and resources. Unlike previous works, where different approaches are proposed for different scenarios, we propose a unified approach for both threshold-based schemes and generalized group-oriented cryptosystems. This unified implementation has the following merits: (1) With a unified approach, the implementation requires much less overhead than its counterparts when various secret sharing problems are simultaneously involved; (2) The Secret Holder (SD) does not need to redistribute new secret shares after the secret reconstruction; (3) The SD can, dynamically and efficiently. determine the capacities (weight) of each user on recovering the secrets, and the threshold values of the secrets; (4) To dynamically adjust the capacities of users, the SD does not need to refresh the shadow of each user and each user just memorizes one secret shadow.
Relation: Journal of The Chinese Institute of Engineers, 25(6): 723-733
Appears in Collections:[數學系] 期刊論文

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