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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...
An Improvment of the Elliptic Net Algorithm
Pairing based cryptography Elliptic curve Tate pairing
2016/1/3
In this paper we propose a modified Elliptic Net algorithm to compute pairings. By reducing the number of the
intermediate variables which should be updated in the iteration loop of the Elliptic Net ...
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-...
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
2009/1/30
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-...
How To Play Almost Any Mental Game Over The Net —Concurrent Composition via Super-Polynomial Simulation
Non-malleable protocols concurrent composition multi-party secure computation
2009/1/23
We construct a secure protocol for any multi-party functionality that remains secure (under
a relaxed definition of security) when executed concurrently with multiple copies of itself and
other prot...
GVG-RP: A Net-centric Negligibility-based Security Model for Self-organizing Networks
Net-centric Security Negligibility Scalability
2008/11/14
We present a rigorous approach to building a secure self-organizing mobile ad hoc network (MANET). In a highly dynamic environment like MANET, it is impossible to ensure absolute security to protect e...
NET WORLD CA安全认证系统
CA安全认证 网络软件 证书安全认证系统 程序系统
2008/7/4
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