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匿名实体鉴别机制正式发布为国际标准
2017-08-26 06:20:57 中国青年网
该机制是近年来在网络空间安全领域的ISO国际标准化活动中,少数几个由我国自主研制的国际标准提案。由于YZ机制的引入,ISO/IEC SC27淘汰了其他国家成员体贡献的另外2个安全机制:PIR-HE机制和QGZ机制。
随着互联网应用快速发展,隐私泄露问题日益凸显,2016年泄露数据达40亿条,2017年愈演愈烈,隐私保护的实体鉴别技术得到广泛关注。
ISO/IEC信息安全技术委员会(SC27)自2012年开始制定基于口令的匿名实体鉴别标准,能在实现口令鉴别的同时保护用户隐私。
中科院软件所张振峰研究员主持研制了一种新的匿名口令鉴别与密钥交换(NAPAKE)机制,采用口令杂凑值作为密钥交换的基底并有机地与OT协议相结合,突破了身份鉴别时既要保护隐私又能抵抗字典攻击的相互限制,解决了基于强秘密的匿名实体鉴别设计理论无法适用的问题,在保持显著性能优势的同时具有可证明安全性。这一机制形成了我国自主的国际标准提案,并命名为YZ机制。
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