A note on the feasibility of generalized universal composability - (Extended abstract)

被引:0
|
作者
Yao, Andrew C. C. [2 ]
Yao, Frances F. [3 ]
Zhao, Yunlei [1 ]
机构
[1] Fudan Univ, Software Sch, Shanghai 200433, Peoples R China
[2] Tsinghua Univ, Ctr Adv Study, Beijing, Peoples R China
[3] City Univ Hong Kong, Dept Comp Sci, Hong Hom, Hong Kong, Peoples R China
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中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We clarify the potential limitation of the general feasibility for generalized universal composability (GUC) proposed in the recent work [8], and discuss a general principle for fully realizing universal composability. This in particular demonstrates the hardness of achieving generalized universal composability, and prevents potential misinterpretation in applications. We also propose some fixing approaches, which involve a source/session-authentic ID-based trapdoor commitment scheme via the hash-then-commit paradigm that could possibly be of independent interest.
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页码:474 / +
页数:4
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