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https://hdl.handle.net/1822/23703| Título: | On the semantic security of functional encryption schemes |
| Autor(es): | Barbosa, Manuel Farshim, Pooya |
| Palavras-chave: | Functional encryption Semantic security Indistinguishability Preimage samplability Adaptive token extraction model Inner-product encryption Small integer solution Adaptive token extraction SIS problem |
| Data: | 2013 |
| Editora: | Springer |
| Revista: | Lecture Notes in Computer Science (including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
| Resumo(s): | Functional encryption (FE) is a powerful cryptographic primitive that generalizes many asymmetric encryption systems proposed in recent years. Syntax and security definitions for FE were proposed by Boneh, Sahai, and Waters (BSW) (TCC 2011) and independently by O’Neill (ePrint 2010/556). In this paper we revisit these definitions, identify several shortcomings in them, and propose a new definitional approach that overcomes these limitations. Our definitions display good compositionality properties and allow us to obtain new feasibility and impossibility results for adaptive token-extraction attack scenarios that shed further light on the potential reach of general FE for practical applications. |
| Tipo: | Artigo em ata de conferência |
| URI: | https://hdl.handle.net/1822/23703 |
| ISBN: | 978-3-642-36361-0 |
| DOI: | 10.1007/978-3-642-36362-7_10 |
| ISSN: | 0302-9743 |
| Versão da editora: | http://link.springer.com/chapter/10.1007%2F978-3-642-36362-7_10 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| fess.pdf | Full version | 694,27 kB | Adobe PDF | Ver/Abrir |
