Oblivious Plug&Charge: A Privacy-Preserving EV Charging Scheme based on ORAM

on YouTube ↗16m

" summary

Claims that a multi-client ORAM placed at the charging station operator hides which database entry an EV updates so the CSO cannot link sessions, while the EMSP only receives per-vehicle aggregated consumption after decrypting the database. Implements an ORAM model with a Chiao-style fully homomorphic encryption backend and a non-interactive zero-knowledge proof to force correct, unforgeable consumption updates. Assumes honest-but-curious, non-colluding parties, no PoC yet, high FHE cost makes the design currently theoretical and impractical.

AI-written summary · about

" chapters (7)

1. 0:00Introduction
2. 4:11Plug&Charge privacy risks
3. 6:21Design goals
4. 8:08ORAM architecture
5. 13:23Security and privacy
6. 14:46Limitations and practicality
7. 15:28Conclusion

" related talks

• 01h 15mOblivious RAM IElaine Shi, Daniel Wichs · Cryptography Boot Camp 2015
• 14mCharge It to My Neighbor: A Relay Attack on ISO 15118 Plug and Charge PaymentJakob Löw, Vishwa Vasu, Thomas Hutzelmann, Hans-Joachim Hof · VehicleSec '26
• 35mOblivious RAM for MPCStanislaw Jarecki · Securing Computation (Simons Institute, June 2015)
• 01h 11mPrivate Information Retrieval and Oblivious RAMElaine Shi · Cryptography 10 Years Later: Obfuscation, Proof Systems, and Secure Computation Boot Camp 2025
• 01h 06mOblivious RAM IIElaine Shi, Daniel Wichs · Cryptography Boot Camp 2015
• 23mOblivP2P: An Oblivious Peer-to-Peer Content Sharing SystemYaoqi Jia, Prateek Saxena, Tarik Moataz, Shruti Tople · USENIX Security '16
• 15mV-ORAM: A Versatile and Adaptive ORAM Framework with Service Transformation...Bo Zhang, Xingliang Yuan, Helei Cui, Zhiwen Yu, Bin Guo · USENIX Security '25
• 25mORide: A Privacy-Preserving yet Accountable Ride-Hailing ServiceAnh Pham, Kévin Huguenin, Italo Dacosta, Guillaume Endignoux, Juan Ramon Troncoso Pastoriza, Jean-Pierre Hubaux · 26th USENIX Security Symposium (USENIX Security '17)