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UID:dac_DAC 2026_sess317_RESEARCH876@linklings.com
SUMMARY:TDSnap: Enabling Secure Function-as-a-Service with Trusted Domain 
 Snapshots
DESCRIPTION:Seong-Joong Kim (National Security Research Institute), Seungw
 on Shin (Korea Advanced Institute of Science and Technology), and Myoungsu
 ng You (University of Seoul)\n\nFunction-as-a-Service (FaaS) has become a 
 de-facto paradigm for deploying cloud applications, yet it exposes sensiti
 ve data to untrusted infrastructures. Running functions on confidential vi
 rtual machines (CVMs) such as Intel TDX provides strong isolation for data
  but significantly increases cold-start latency due to CVM initialization.
  This paper presents TDSnap, the first TDX-aware function snapshot system 
 that records a verified function state with its TD and restores it on dema
 nd. Using snapshot-bounded attestation and TD-aware working-set identifica
 tion, TDSnap preserves TDX isolation while reducing cold-start latency. Ev
 aluation shows that TDSnap reduces cold-start latency by up to 40x and mat
 ches non-TDX snapshot systems.\n\nTrack: EDA7-II. Physical Design and Veri
 fication, Design\n\nSession Chairs: Christian Pilato (Politecnico di Milan
 o); Mohsen Imani (University of California, Irvine); Flavio Ponzina (San D
 iego State University); Amin Farshidi (Cadence Design Systems, Inc.); Yong
 gan Fu (Georgia Institute of Technology, NVIDIA); Dimitrios Tsaras (Huawei
 , Hong Kong University of Science and Technology (HKUST)); Anh Nguyen (Fuj
 itsu Limited); Ruiyang Qin (Villanova University); Jiliang Zhang (Hunan Un
 iversity); Meng Li (Peking University); and Rassul Bairamkulov (Advanced M
 icro Devices (AMD))\n\n
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