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• W2969728691 abstract "On ARM processors with TrustZone security extension, asynchronous introspection mechanisms have been developed in the secure world to detect security policy violations in the normal world. These mechanisms provide security protection via passively checking the normal world snapshot. However, since previous secure world checking solutions require to suspend the entire rich OS, asynchronous introspection has not been widely adopted in the real world. Given a multi-core ARM system that can execute the two worlds simultaneously on different cores, secure world introspection can check the rich OS without suspension. However, we identify a new normal-world evasion attack that can defeat the asynchronous introspection by removing the attacking traces in parallel from one core when the security checking is performing on another core. We perform a systematic study on this attack and present its efficiency against existing asynchronous introspection mechanisms. As the countermeasure, we propose a secure and trustworthy asynchronous introspection mechanism called SATIN, which can efficiently detect the evasion attacks by increasing the attackers' evasion time cost and decreasing the defender's execution time under a safe limit. We implement a prototype on an ARM development board and the experimental results show that SATIN can effectively prevent evasion attacks on multi-core systems with a minor system overhead." @default.
• W2969728691 created "2019-08-29" @default.
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• W2969728691 date "2019-06-01" @default.
• W2969728691 modified "2023-09-23" @default.
• W2969728691 title "SATIN: A Secure and Trustworthy Asynchronous Introspection on Multi-Core ARM Processors" @default.
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• W2969728691 doi "https://doi.org/10.1109/dsn.2019.00040" @default.
• W2969728691 hasPublicationYear "2019" @default.
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