Hash Proof System with Auxiliary Inputs and Its Application

In this work, we develop a hash proof system with auxiliary inputs (HPSAI), whose performance is as efficient as the underlying hash proof system (HPS). Moreover, we show that our HPSAI is a practical tool for the creation of leakage-resilient public key encryption (LR-PKE). In particular, we obtain...

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Bibliographic Details
Published in2022 IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom) pp. 52 - 59
Main Authors Cai, Cailing, Yuen, Tsz Hon, Yiu, Siu-Ming
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2022
Subjects
Auxiliary input model
Computational modeling
Encryption
Hash proof system
Leakage-resilience
Privacy
Public key
Public key encryption
Side-channel attacks
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Summary:In this work, we develop a hash proof system with auxiliary inputs (HPSAI), whose performance is as efficient as the underlying hash proof system (HPS). Moreover, we show that our HPSAI is a practical tool for the creation of leakage-resilient public key encryption (LR-PKE). In particular, we obtain a CCA-secure LR-PKE scheme that is able to leak most of the secret key information-theoretically with any hard-to-invert leakage function. Furthermore, our construction enjoys pairing-free and constant ciphertext size.
ISSN:2324-9013
DOI:10.1109/TrustCom56396.2022.00018