{"title":"Publicly evaluable pseudorandom functions and their applications","authors":"Yu Chen, Zongyang Zhang","doi":"10.3233/JCS-160547","DOIUrl":null,"url":null,"abstract":"We put forth the notion of publicly evaluable pseudorandom functions (PEPRFs), which is a non-trivial extension of the standard pseudorandom functions (PRFs). Briefly, PEPRFs are defined over domain X containing an NP language L in which the witness is hard to extract on average, and each secret key sk is associated with a public key pk. For any x ∈ L, in addition to evaluate F sk (x) using sk as in the standard PRFs, one is also able to evaluate F sk (x) with pk, x and a witness w for x ∈ L. We conduct a formal study of PEPRFs, focusing on applications, constructions, and extensions. In more details:","PeriodicalId":142580,"journal":{"name":"J. Comput. Secur.","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"J. Comput. Secur.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3233/JCS-160547","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
We put forth the notion of publicly evaluable pseudorandom functions (PEPRFs), which is a non-trivial extension of the standard pseudorandom functions (PRFs). Briefly, PEPRFs are defined over domain X containing an NP language L in which the witness is hard to extract on average, and each secret key sk is associated with a public key pk. For any x ∈ L, in addition to evaluate F sk (x) using sk as in the standard PRFs, one is also able to evaluate F sk (x) with pk, x and a witness w for x ∈ L. We conduct a formal study of PEPRFs, focusing on applications, constructions, and extensions. In more details:
提出了可公开求值伪随机函数的概念，它是标准伪随机函数的非平凡扩展。短暂,PEPRFs定义包含一个NP语言L /域X证人很难提取平均每个密钥sk与公钥pk。对于任何X∈L,除了评估F sk (X)使用sk作为标准脉冲重复频率,也能够评估一个F sk (X)与pk, X和证人w X∈PEPRFs L .我们进行正式研究,专注于应用,结构,和扩展。更详细地说:
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