On the Amortized Complexity of Zero-Knowledge Protocols
On the Amortized Complexity of Zero-Knowledge Protocols
复制标题
关于零知识协议的摊销复杂性
DOI:
10.1007/s00145-013-9145-x
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发表时间:
2013
影响因子:
3
通讯作者:
Cramer R
中科院分区:
文献类型:
--
作者:
Cramer R
We propose a general technique that allows improving the complexity of zero-knowledge protocols for a large class of problems where previously the best known solution was a simple cut-and-choose style protocol, i.e., where the size of a proof for problem instancexand error probability 2−nwasO(|x|n) bits. By using our technique to proveninstances simultaneously, we can bring down the proof size per instance toO(|x|+n) bits for the same error probability while using no computational assumptions. Examples where our technique applies include proofs for quadratic residuosity, proofs of subgroup membership and knowledge of discrete logarithms in groups of unknown order, interval proofs of the latter, and proofs of plaintext knowledge for various types of homomorphic encryption schemes. We first propose our protocols asΣ-protocols and extend them later to zero-knowledge proofs of knowledge.
DOI:
10.1007/3-540-45708-9_18
发表时间:
2002
期刊:
Proceedings of IEEE 36th Annual Foundations of Computer Science
影响因子:
--
作者:
R. Cramer;S. Fehr
通讯作者:
S. Fehr
DOI:
10.1145/129712.129780
发表时间:
1992-07
期刊:
--
影响因子:
--
作者:
M. Franklin;M. Yung
通讯作者:
M. Franklin;M. Yung