恶意模型下保密点积协议的设计与分析*

保密点积协议是许多安全多方计算问题中一个重要的协议，常被用在许多保密数据挖掘协议中，为这些协议提供了重要的安全保证。目前，一些已存在的保密点积协议至多在半诚实模型下是安全的。基于一些基本的密码学技术设计了一个恶意模型下安全的保密两方共享点积协议，这个协议比以往协议具有更高的安全性。该协议潜在的应用领域是广阔的，如计算Euclidean距离、保密计算几何、保密协作统计分析等。

Design and analysis of private preserving dot product protocolunder malicious model

Private-preserving dot product protocol is an important protocol of many secure multi-party computation problems,and is generally used in many privacy-preserving data mining protocols,providing important security guarantee for these protocols. At present,some existing private-preserving dot product protocols are secure at most in the semi-honest model. This paper constructed a privacy-preserving two-party shared-dot product protocol based on some basic cryptographic techniques which was secure in malicious ...