Paper 2023/1807

Entrada to Secure Graph Convolutional Networks

Nishat Koti, Indian Institute of Science, Bangalore
Varsha Bhat Kukkala, Indian Institute of Science, Bangalore
Arpita Patra, Indian Institute of Science, Bangalore
Bhavish Raj Gopal, Indian Institute of Science, Bangalore
Abstract

Graph convolutional networks (GCNs) are gaining popularity due to their powerful modelling capabilities. However, guaranteeing privacy is an issue when evaluating on inputs that contain users’ sensitive information such as financial transactions, medical records, etc. To address such privacy concerns, we design Entrada, a framework for securely evaluating GCNs that relies on the technique of secure multiparty computation (MPC). For efficiency and accuracy reasons, Entrada builds over the MPC framework of Tetrad (NDSS’22) and enhances the same by providing the necessary primitives. Moreover, Entrada leverages the GraphSC paradigm of Araki et al. (CCS’21) to further enhance efficiency. This entails designing a secure and efficient shuffle protocol specifically in the 4-party setting, which to the best of our knowledge, is done for the first time and may be of independent interest. Through extensive experiments, we showcase that the accuracy of secure GCN evaluated via Entrada is on par with its cleartext counterpart. We also benchmark efficiency of Entrada with respect to the included primitives as well as the framework as a whole. Finally, we showcase Entrada’s practicality by benchmarking GCN-based fraud detection application.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
Keywords
secure multiparty computationgraph convolutional networkssecure shuffle
Contact author(s)
kotis @ iisc ac in
varshak @ iisc ac in
arpita @ iisc ac in
bhavishraj @ iisc ac in
History
2023-11-24: approved
2023-11-23: received
See all versions
Short URL
https://ia.cr/2023/1807
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2023/1807,
      author = {Nishat Koti and Varsha Bhat Kukkala and Arpita Patra and Bhavish Raj Gopal},
      title = {Entrada to Secure Graph Convolutional Networks},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/1807},
      year = {2023},
      url = {https://eprint.iacr.org/2023/1807}
}
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