Software-Defined Perimeter(SDP)provides a logical perimeter to restrict access to services.However,due to the security vulnerability of a single controller and the programmability lack of a gateway,existing SDP is fac...Software-Defined Perimeter(SDP)provides a logical perimeter to restrict access to services.However,due to the security vulnerability of a single controller and the programmability lack of a gateway,existing SDP is facing challenges.To solve the above problems,we propose a flexible and secure SDP mechanism named Mimic SDP(MSDP).MSDP consists of endogenous secure controllers and a dynamic gateway.The controllers avoid single point failure by heterogeneity and redundancy.And the dynamic gateway realizes flexible forwarding in programmable data plane by changing the processing of packet construction and deconstruction,thereby confusing the potential adversary.Besides,we propose a Markov model to evaluate the security of our SDP framework.We implement a prototype of MSDP and evaluate it in terms of functionality,performance,and scalability in different groups of systems and languages.Evaluation results demonstrate that MSDP can provide a secure connection of 93.38%with a cost of 6.34%under reasonable configuration.展开更多
(本刊讯)2024年12月19日,南通江天化学股份有限公司(以下简称“江天化学”)发布公告,宣布已签署《知识产权转让及实施许可合同》。根据该合同,江天化学计划向SDP Global Co.,Ltd.支付人民币1,260万元,以购买与高吸收性树脂产品相关的知...(本刊讯)2024年12月19日,南通江天化学股份有限公司(以下简称“江天化学”)发布公告,宣布已签署《知识产权转让及实施许可合同》。根据该合同,江天化学计划向SDP Global Co.,Ltd.支付人民币1,260万元,以购买与高吸收性树脂产品相关的知识产权,涵盖专利、专利申请及商标权。展开更多
为解决高速铁路旅客服务系统(简称:旅服系统)业务终端设备数量多且统一安全接入管理权限复杂、零信任访问控制手段不足,以及传统软件定义边界(SDP,Software Defined Perimeter)零信任架构在实际应用中存在单点故障等问题,设计一种DSDP(D...为解决高速铁路旅客服务系统(简称:旅服系统)业务终端设备数量多且统一安全接入管理权限复杂、零信任访问控制手段不足,以及传统软件定义边界(SDP,Software Defined Perimeter)零信任架构在实际应用中存在单点故障等问题,设计一种DSDP(Dual-identity SDP)零信任架构,用以改造旅服系统主数据中心(简称:主数据中心)和铁路局集团公司服务器集群架构,保障其代管的车站业务终端设备接入的安全性;提出基于同态加密技术的双重认证流程算法,用以实现DSDP零信任架构下,主数据中心和铁路局集团公司SDP控制模块双向互认功能。实验结果表明:DSDP零信任架构可有效对抗劫持风险;在多用户的情况下,可保障旅服系统响应时间在合理范围内;具有可用性,可为旅服系统终端设备的统一接入与不同权限要求的零信任身份认证提供技术手段。展开更多
基金supported by the National Key Research and Development Program of China(Grant No.2022YFB2901304)。
文摘Software-Defined Perimeter(SDP)provides a logical perimeter to restrict access to services.However,due to the security vulnerability of a single controller and the programmability lack of a gateway,existing SDP is facing challenges.To solve the above problems,we propose a flexible and secure SDP mechanism named Mimic SDP(MSDP).MSDP consists of endogenous secure controllers and a dynamic gateway.The controllers avoid single point failure by heterogeneity and redundancy.And the dynamic gateway realizes flexible forwarding in programmable data plane by changing the processing of packet construction and deconstruction,thereby confusing the potential adversary.Besides,we propose a Markov model to evaluate the security of our SDP framework.We implement a prototype of MSDP and evaluate it in terms of functionality,performance,and scalability in different groups of systems and languages.Evaluation results demonstrate that MSDP can provide a secure connection of 93.38%with a cost of 6.34%under reasonable configuration.
文摘为解决高速铁路旅客服务系统(简称:旅服系统)业务终端设备数量多且统一安全接入管理权限复杂、零信任访问控制手段不足,以及传统软件定义边界(SDP,Software Defined Perimeter)零信任架构在实际应用中存在单点故障等问题,设计一种DSDP(Dual-identity SDP)零信任架构,用以改造旅服系统主数据中心(简称:主数据中心)和铁路局集团公司服务器集群架构,保障其代管的车站业务终端设备接入的安全性;提出基于同态加密技术的双重认证流程算法,用以实现DSDP零信任架构下,主数据中心和铁路局集团公司SDP控制模块双向互认功能。实验结果表明:DSDP零信任架构可有效对抗劫持风险;在多用户的情况下,可保障旅服系统响应时间在合理范围内;具有可用性,可为旅服系统终端设备的统一接入与不同权限要求的零信任身份认证提供技术手段。
