Privacy-Preserving UCB Decision Process Verification via zk-SNARKs

Fuente: arXiv
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Main Authors: Jiang, Xikun, Lyu, He, Ying, Chenhao, Xu, Yibin, Düdder, Boris, Luo, Yuan
Format: Preprint
Published: 2024
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author Jiang, Xikun
Lyu, He
Ying, Chenhao
Xu, Yibin
Düdder, Boris
Luo, Yuan
author_facet Jiang, Xikun
Lyu, He
Ying, Chenhao
Xu, Yibin
Düdder, Boris
Luo, Yuan
contents With the increasingly widespread application of machine learning, how to strike a balance between protecting the privacy of data and algorithm parameters and ensuring the verifiability of machine learning has always been a challenge. This study explores the intersection of reinforcement learning and data privacy, specifically addressing the Multi-Armed Bandit (MAB) problem with the Upper Confidence Bound (UCB) algorithm. We introduce zkUCB, an innovative algorithm that employs the Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (zk-SNARKs) to enhance UCB. zkUCB is carefully designed to safeguard the confidentiality of training data and algorithmic parameters, ensuring transparent UCB decision-making. Experiments highlight zkUCB's superior performance, attributing its enhanced reward to judicious quantization bit usage that reduces information entropy in the decision-making process. zkUCB's proof size and verification time scale linearly with the execution steps of zkUCB. This showcases zkUCB's adept balance between data security and operational efficiency. This approach contributes significantly to the ongoing discourse on reinforcing data privacy in complex decision-making processes, offering a promising solution for privacy-sensitive applications.
format Preprint
id arxiv_https___arxiv_org_abs_2404_12186
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Privacy-Preserving UCB Decision Process Verification via zk-SNARKs
Jiang, Xikun
Lyu, He
Ying, Chenhao
Xu, Yibin
Düdder, Boris
Luo, Yuan
Machine Learning
Cryptography and Security
With the increasingly widespread application of machine learning, how to strike a balance between protecting the privacy of data and algorithm parameters and ensuring the verifiability of machine learning has always been a challenge. This study explores the intersection of reinforcement learning and data privacy, specifically addressing the Multi-Armed Bandit (MAB) problem with the Upper Confidence Bound (UCB) algorithm. We introduce zkUCB, an innovative algorithm that employs the Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (zk-SNARKs) to enhance UCB. zkUCB is carefully designed to safeguard the confidentiality of training data and algorithmic parameters, ensuring transparent UCB decision-making. Experiments highlight zkUCB's superior performance, attributing its enhanced reward to judicious quantization bit usage that reduces information entropy in the decision-making process. zkUCB's proof size and verification time scale linearly with the execution steps of zkUCB. This showcases zkUCB's adept balance between data security and operational efficiency. This approach contributes significantly to the ongoing discourse on reinforcing data privacy in complex decision-making processes, offering a promising solution for privacy-sensitive applications.
title Privacy-Preserving UCB Decision Process Verification via zk-SNARKs
topic Machine Learning
Cryptography and Security
url https://arxiv.org/abs/2404.12186