Abstract
We study homomorphic authenticated encryption, where privacy and authenticity of data are protected simultaneously. We define homomorphic versions of various security notions for privacy and authenticity, and investigate relations between them. In particular, we show that it is possible to give a natural definition of IND-CCA for homomorphic authenticated encryption, unlike the case of homomorphic encryption. Also, we construct a simple homomorphic authenticated encryption scheme supporting arithmetic circuits, which is chosen-ciphertext secure both for privacy and authenticity. Our scheme is based on the error-free approximate GCD assumption.
Original language | English |
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Title of host publication | Advances in Cryptology - ASIACRYPT 2014 - 20th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings, Part II |
Editors | Palash Sarkar, Tetsu Iwata |
Publisher | Springer Verlag |
Pages | 173-192 |
Number of pages | 20 |
ISBN (Electronic) | 9783662456071 |
DOIs | |
State | Published - 2014 |
Event | 20th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2014 - Kaoshiung, Taiwan, Province of China Duration: 7 Dec 2014 → 11 Dec 2014 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 8874 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 20th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2014 |
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Country/Territory | Taiwan, Province of China |
City | Kaoshiung |
Period | 7/12/14 → 11/12/14 |
Bibliographical note
Publisher Copyright:© International Association for Cryptologic Research 2014.
Keywords
- Homomorphic authenticated encryption
- Homomorphic encryption
- Homomorphic MAC