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DTSTAMP:20240626T180034Z
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DTSTART;TZID=America/Los_Angeles:20240626T143000
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UID:dac_DAC 2024_sess155_RESEARCH012@linklings.com
SUMMARY:SecPaging: Secure Enclave Paging with Hardware-Enforced Protection
  against Controlled-Channel Attacks
DESCRIPTION:Research Manuscript\n\nYunkai Bai and Peinan Li (Institute of 
 Information Engineering, Chinese Academy of Sciences); Yubiao Huang (Chine
 se Academy of Sciences); and Shiwen Wang, Xingbin Wang, Dan Meng, and Rui 
 Hou (Institute of Information Engineering, Chinese Academy of Sciences)\n\
 nAs a prevalent privacy-preserving technology, Trusted Execution Environme
 nt has become widely adopted in numerous commercial processors. Nonetheles
 s, they remain susceptible to various controlled-channel attacks. Untruste
 d operating systems can deduce enclave secrets by manipulating page tables
  or observing allocation- or swap-based page faults. In this paper, we pro
 pose SecPaging, a novel secure enclave paging mechanism based on hardware-
 enforced and microcode-supported protection to prevent these attacks. Firs
 t, enclave PTEs are protected through hardware isolation, preventing privi
 leged attackers from malicious tampering or observations. Second, Eager-Al
 location mechanism is employed to prevent allocation-based controlled-chan
 nel attacks. Besides, Record-Reload mechanism is proposed to prevent swap-
 based controlled-channel attacks.\n\nTopic: Security\n\nKeyword: Hardware 
 Security: Attack and Defense\n\nSession Chairs: Avani Dave (Intel Corporat
 ion) and Vincent Immler (Oregon State University)
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