%0 Journal Article %A BIAN Jian-chao %A LI Wei %A LUO Shou-shan %A ZHA Ya-xing %T Dynamic Group Public Auditing Scheme for Shared Data on Attribute-Based Threshold Signature %D 2017 %R 10.13190/j.jbupt.2017-003 %J Journal of Beijing University of Posts and Telecommunications %P 43-49 %V 40 %N 5 %X A privacy-preserving public auditing scheme for dynamic group shared data based on attribute-based threshold signature was proposed, the identity information parameter was introduced into the attribute keys for preventing collusion attacker who wants to forge signature through the combination of these keys. The proposed scheme supports authority revocation of group user and data dynamic operation with attribute-based authorization strategy. Analysis shows that the proposed scheme with the characteristics of unforgeability and resistance collusion attack based on the random oracle model, and with better efficiency and security. %U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2017-003