多媒體網路安全實驗室 private information retrieval scheme combined with e- payment in...
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DESCRIPTION
多媒體網路安全實驗室 Introduction Formally, private information retrieval (PIR) was a general problem of private retrieval of the i- item out of an n item database stored at the server. SC(a temper-proof device):It prevents information from revealing to anyone or administrator of the server and makes every legal user of the server have their own privacy. 3