Security Preserving Integration and Resynthesis of Reconfigurable Scan Networks
Security Preserving Integration and Resynthesis of Reconfigurable Scan Networks
复制标题
可重构扫描网络的安全保护集成和再综合
DOI：
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复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
H. Wunderlich
中科院分区：
文献类型：
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作者：
N. Lylina;A. Atteya;Chih;H. Wunderlich
通过嵌入式仪器，如传感器、老化监视器或内置自检(BIST)寄存器，确保复杂集成系统的可靠运行、测试、调试和诊断。可重构扫描网络(RSN)为在整个生命周期中访问此类测试仪器提供了一种灵活而高效的方式。但是，不正确的RSN集成可能会向被测设备(DUT)引入额外的连接属性，这可能会被利用来执行未经授权的访问或导致信息泄漏。通过RSN的这种额外连接的存在可能会危及DUT的安全，被认为是一种安全威胁。该问题以整数线性规划(ILP)的形式描述为多商品流中的最小割集问题。提出了一种有效的启发式算法，据我们所知，它首次允许同时考虑整个违规集，从而找到RSN结构的最小改变次数，以使其符合DUT的初始安全要求，并防止通过扫描链的信息泄漏。
Reliable operation, test, debug and diagnosis of complex integrated systems are ensured by embedded instruments, such as sensors, aging monitors or Built-In Self-Test (BIST) registers. Reconfigurable Scan Networks (RSNs) offer a flexible and efficient way to access such test instruments throughout the whole life-cycle. However, improper RSN integration might introduce additional connectivity properties to the device under test (DUT), which can be exploited to perform unauthorized access or cause information leakage. The existence of such additional connectivity through the RSN can compromise the security of the DUT and is considered as a security threat.In this paper, a method is presented to resolve all such security compliance violations. The problem is formulated in terms of Integer Linear Programming (ILP) as a minimum cut problem in multicommodity flow. An efficient heuristic is presented, which, to our knowledge, for the first time allows to consider the whole set of violations simultaneously and thereby to find a minimized number of changes to the RSN structure in order to make it compliant with the initial security requirements of the DUT and prevent the information leakage through the scan chain.
可重新配置扫描网络的访问端口保护
DOI：
10.1007/s10836-014-5484-2
发表时间：
2014
期刊：
Journal of Electronic Testing
影响因子：
--
作者：
R. Baranowski;M.A. Kochte;H.-J. Wunderlich
通讯作者：
H.-J. Wunderlich
可重构扫描网络中的细粒度访问管理
DOI：
10.1109/tcad.2015.2391266
发表时间：
2015
影响因子：
2.9
作者：
R. Baranowski;M.A. Kochte;H.-J. Wunderlich
通讯作者：
H.-J. Wunderlich