Efficient hybrid-encryption-based optimistic Mix-net protocol
An efficient hybrid-encryption-based Mix-net is presented that is much faster than all previous Mix-nets with public verifiability when all mix-servers execute the mixing protocol honestly (the usual case).The improvement by taking an “optimistic” and hash-based approach to verify the correctness of...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2014-11-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.z2.021/ |
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| Summary: | An efficient hybrid-encryption-based Mix-net is presented that is much faster than all previous Mix-nets with public verifiability when all mix-servers execute the mixing protocol honestly (the usual case).The improvement by taking an “optimistic” and hash-based approach to verify the correctness of mixing is achieved without requiring complex and costly zero-knowledge proofs.Only two element-wise testing processes with low-cost computations of hash functions are involved to make certain messages are not manipulated by a cheating server.An efficient integration of public-key and symmetric-key operations also speeds up the mixing.As a result,the computational task of each mix-server is almost independent of the number of mix-servers except for some negligible tasks.Anyone can verify the correctness of a result rapidly by computing a few exponentiations.The scheme is robust,too.Those characteristics make it very suitable for large scale electronic voting. |
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| ISSN: | 1000-436X |