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Improved homomorphic evaluation for hash function based on TFHE

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Improved homomorphic evaluation for hash function based on TFHE

https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_doaj_primary_oai_doaj_org_article_7a207e096fc74ea7a9bc8b0cc91ac68e

Improved homomorphic evaluation for hash function based on TFHE

About this item

Full title

Improved homomorphic evaluation for hash function based on TFHE

Author / Creator

Wei, Benqiang and Lu, Xianhui

Publisher

Singapore: Springer Nature Singapore

Journal title

Cybersecurity, 2024-12, Vol.7 (1), p.14-14, Article 14

Language

English

Formats

Articles

Publication information

Publisher

Singapore: Springer Nature Singapore

Subjects

More information

Scope and Contents

Contents

Homomorphic evaluation of hash functions offers a solution to the challenge of data integrity authentication in the context of homomorphic encryption. The earliest attempt to achieve homomorphic evaluation of SHA-256 hash function was proposed by Mella and Susella (in: Cryptography and coding—14th IMA international conference, IMACC 2013. Lecture notes in computer science, vol 8308. Springer, Heidelberg, pp 28–44, 2013.
https://doi.org/10.1007/978-3-642-45239-0_3
.) based on the BGV scheme. Unfortunately, their implementation faced significant limitations due to the exceedingly high multiplicative depth, rendering it impractical. Recently, a homomorphic implementation of SHA-256 based on the TFHE scheme (Homomorphic evaluation of SHA-256.