~/talk

ShieldReduce: Fine-Grained Shielded Data Reduction

on YouTube 17m
Talkat USENIX ATC '25 · 2025-07-07..07-09· [security, databases]

speakers

name:Jingyuan Yang
links:none on file
name:Jun Wu
links:none on file
name:Ruilin Wu
links:none on file
name:Jingwei Li
links:none on file
name:Patrick P. C. Lee
links:none on file
name:Xiong Li
links:none on file
name:Xiaosong Zhang
links:none on file

resources

video:https://youtu.be/PMjtJIgtoB0
slides:none on file

summary

System design applies Intel SGX enclave to perform deduplication, delta and local compression inside a trusted environment, using a novel bi-directional delta compression and a hybrid inline/offline pipeline. Evaluation on backup traces shows up to 3.5× upload throughput versus a forward-delta baseline, comparable storage savings to plaintext fine-grained reduction, 83.3% fewer enclave crossings, and up to ~3.6× overall space savings; prototype is open source.

AI-written summary · about

chapters (13)

  1. 0:00Outsourced storage challenges
  2. 1:21Encrypted deduplication limits
  3. 2:46Trusted execution for reduction
  4. 4:11SGX overhead challenges
  5. 4:55ShieldReduce core techniques
  6. 6:01Locality for delta compression
  7. 7:24Bidirectional delta compression
  8. 9:11Hybrid compression strategy
  9. 12:01Balancing performance and storage
  10. 13:25Experimental setup and comparison
  11. 14:28Storage savings and throughput
  12. 15:11Enclave efficiency gains
  13. 16:15Conclusion

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