SKENO: Secret key encryption with non-interactive opening
| Autor: | Chen Jiageng, Emura Keita, Miyaji Atsuko |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Journal of Mathematical Cryptology, Vol 9, Iss 2, Pp 63-74 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1862-2976 1862-2984 2014-0010 |
| DOI: | 10.1515/jmc-2014-0010 |
| Popis: | In this paper, we introduce the notion of secret key encryption with non-interactive opening (SKENO). With SKENO, one can make a non-interactive proof π to show that the decryption result of a ciphertext C under a shared secret key K is indeed plaintext M without revealing K itself. SKENO is the secret key analogue of public key encryption with non-interactive opening (PKENO). We give a generic construction of SKENO from verifiable random function (VRF) with certain stronger uniqueness, for example, the Hohenberger–Waters VRF and the Berbain–Gilbert IV-dependent stream cipher construction. Although the strong primitive VRF is used, by taking advantage of the features of the stream cipher, we can still achieve good performance without sacrificing much of the efficiency. Though our VRF-based SKENO construction does not require random oracles, we show that SKENO can be constructed from weak VRF (which is strictly weaker primitive than VRF) in the random oracle model. |
| Databáze: | Directory of Open Access Journals |
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