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2003 | OriginalPaper | Buchkapitel

Verifiable Homomorphic Oblivious Transfer and Private Equality Test

verfasst von : Helger Lipmaa

Erschienen in: Advances in Cryptology - ASIACRYPT 2003

Verlag: Springer Berlin Heidelberg

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We describe slightly modified version (that we call the HOT protocol) of the Aiello-Ishai-Reingold oblivious transfer protocol from Eurocrypt 2001. In particular, the HOT protocol will be what we call weakly secure when coupled with many different homomorphic semantically secure public-key cryptosystems. Based on the HOT protocol, we construct an efficient verifiable oblivious transfer protocol and an efficient verifiable private equality test. As a concrete application of our results, we propose a novel protocol called proxy verifiable private equality test, and apply it to a cryptographic auction scheme to improve its security.

Metadaten
Titel
Verifiable Homomorphic Oblivious Transfer and Private Equality Test
verfasst von
Helger Lipmaa
Copyright-Jahr
2003
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-540-40061-5_27