CAJ | 학술논문

为更好发挥DAA协议在隐私保护方面的作用,提高协议自身的安全性,对现有DAA协议的性能及安全进行了分析,列举了协议在提高性能方面所采取的优化策略及其满足的安全属性.重点分析了协议可能存在的安全问题,如RSA安全问题、恶意Issuer问题、Rudolph攻击、跨域认证问题等,特别指出现有协议存在的共性安全问题:只满足RO模型下可证明安全性.提出解决上述问题的具体方法及所需技术,为构建新的DAA方案、实现新方案在标准模型下的安全性证明奠定理论基础.
위경호발휘DAA협의재은사보호방면적작용,제고협의자신적안전성,대현유DAA협의적성능급안전진행료분석,열거료협의재제고성능방면소채취적우화책략급기만족적안전속성.중점분석료협의가능존재적안전문제,여RSA안전문제、악의Issuer문제、Rudolph공격、과역인증문제등,특별지출현유협의존재적공성안전문제:지만족RO모형하가증명안전성.제출해결상술문제적구체방법급소수기술,위구건신적DAA방안、실현신방안재표준모형하적안전성증명전정이론기출.
In order to better play at the role of privacy protection of DAA protocol and improve the safety ofthe protocol-self,Firstly,the performance and the security of DAA in existence are analyzed,the optimization strategies to meet the safety and property of DAA are listed.Secondly,some potential security problems are analyzed,such RSA security problem,malicious issuer problem,rudolph attack, cross-domain authentication problem and so on, especially some mutual problem is pointed out-Just proved in random oracle mode.Finally, some specific methods and skills required to solve the above problems are pointed out which are used to build new DAA program and implement the security proof of new program in the standard model.