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Securing Abe's Mix-net Against Malicious Verifiers via Witness Indistinguishability
mix-nets witness indistinguishability Benes network
2017/6/9
We show that the simple and appealing unconditionally sound mix-net due to Abe (Asiacrypt'99) can be augmented to further guarantee anonymity against malicious verifiers. This additional guarantee imp...
A new attack on Jakobsson Hybrid Mix-Net
cryptographic protocols Mix-net Hybrid Mix-net Anonymity
2011/7/25
The Jakobsson hybrid Mix-net proposed by Jakobsson and Juels, is a very practical and efficient scheme for long input messages.
New Receipt-Free E-Voting Scheme and Self-Proving Mix Net as New Paradigm
cryptographic protocols / election schemes self-proving mix net receipt-freeness
2012/3/27
The contribution of this paper is twofold. First we present a new simple electronic voting scheme having standard re-encryption mix net back-end, which allows to cast a ballot and verify its correctne...
A new attack on Jakobsson Hybrid Mix-Net
cryptographic protocols / Mix-net Hybrid Mix-net Anonymity
2012/3/28
The Jakobsson hybrid Mix-net proposed by Jakobsson and Juels, is a very practical and efficient scheme for long input messages. But this hybrid Mix-net does not have public verifiable property. In thi...
对一种（t, N-2）弹性Mix Net的密码学分析
匿名通信 Mix Net 共谋攻击
2009/5/26
分析了Gao等人提出的(t, N-2)弹性Mix Net方案，发现存在严重安全漏洞．主动攻击者利用Elgamal算法的可展性构造具有相关性的密文组，然后通过观察对应明文组的相关性获得输入与输出的对应关系，最终破坏Mix Net的秘密性．两个不同服务器组中的恶意服务器可以相互勾结利用共谋攻击使Mix Net输出错误结果，并以不可忽略的概率逃过验证协议的检验．分析结果说明Gao的方案不满足(t， N-...