Presentation 2024-02-29
Proposal of a Data Leakage Attack against a Vertical Federated Learning System based on Knowledge Distillation
Takumi Suimon, Yuki Koizumi, Junji Takemasa, Toru Hasegawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Vertical federated learning is a method for participants who have data with the same samples but different features to collaboratively train a machine learning model while keeping their data private. In traditional vertical federated learning, the samples to be inferred are limited, and all participants have to involve during inference phase. To overcome these limitations, Vertical Federated Knowledge Transfer (VFedTrans) has been proposed. In VFedTrans, participants can make inference locally while keeping their data private by using latent representation derived from federated singular value decomposition (FedSVD). This approach also makes the data leakage attacks against the traditional vertical federated learning invalid for VFedTrans. However, this work proposes an attack in which a semi-honest participant infers a linear relationship between latent representation and the original data with neural network and then reconstructs data of other participants. Furthermore, we use two datasets on healthcare and finance and evaluate our attack method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Vertical Federated Learning / Knowledge Distillation / Knowledge Transfer / Privacy Attack
Paper # NS2023-187
Date of Issue 2024-02-22 (NS)

Conference Information
Committee NS / IN
Conference Date 2024/2/29(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Convention Center
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Tetsuya Oishi(NTT) / Kunio Hato(NTT)
Vice Chair Takumi Miyoshi(Shibaura Inst. of Tech.) / Tsutomu Murase(Nagoya Univ.)
Secretary Takumi Miyoshi(NTT) / Tsutomu Murase(Kogakuin Univ.)
Assistant Hiroshi Yamamoto(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Proposal of a Data Leakage Attack against a Vertical Federated Learning System based on Knowledge Distillation
Sub Title (in English)
Keyword(1) Vertical Federated Learning
Keyword(2) Knowledge Distillation
Keyword(3) Knowledge Transfer
Keyword(4) Privacy Attack
1st Author's Name Takumi Suimon
1st Author's Affiliation Osaka University(Osaka Univ.)
2nd Author's Name Yuki Koizumi
2nd Author's Affiliation Osaka University(Osaka Univ.)
3rd Author's Name Junji Takemasa
3rd Author's Affiliation Osaka University(Osaka Univ.)
4th Author's Name Toru Hasegawa
4th Author's Affiliation Osaka University(Osaka Univ.)
Date 2024-02-29
Paper # NS2023-187
Volume (vol) vol.123
Number (no) NS-397
Page pp.pp.90-95(NS),
#Pages 6
Date of Issue 2024-02-22 (NS)