Abstract | ||
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To provide a search functionality for encrypted data, public key encryption with keyword search (PEKS) has been widely recognized. In actual usage, a PEKS scheme should be employed with a PKE scheme since PEKS itself does not support the decryption of data. Since a naive composition of a PEKS ciphertext and a PKE ciphertext does not provide CCA security, several attempts have been made to integrate PEKS and PKE in a joint CCA manner (PEKS/PKE for short). In this paper, we further extend these works by integrating secure-channel free PEKS (SCF-PEKS) and PKE, which we call SCF-PEKS/PKE, where no secure channel is required to send trapdoors. We give a formal security definition of SCF-PEKS/PKE in a joint CCA manner, and propose a generic construction of SCF-PEKS/PKE based on anonymous identity-based encryption, tag-based encryption, and one-time signature. We also strengthen the current consistency definition according to the secure-channel free property, and show that our construction is strongly consistent if the underlying IBE provides unrestricted strong collision-freeness which is defined in this paper. Finally, we show that such an IBE scheme can be constructed by employing the Abdalla et al. transformations (TCC 2010/JoC 2018). |
Year | DOI | Venue |
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2018 | 10.1007/978-3-319-99807-7_5 | INFORMATION SECURITY PRACTICE AND EXPERIENCE (ISPEC 2018) |
Keywords | Field | DocType |
PEKS, Integration of PEKS and PKE, Secure-channel free, Joint CCA security | Secure channel,Computer science,Keyword search,Theoretical computer science,Encryption,Ciphertext,Public-key cryptography | Conference |
Volume | ISSN | Citations |
11125 | 0302-9743 | 0 |
PageRank | References | Authors |
0.34 | 20 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Tatsuya Suzuki | 1 | 1 | 1.71 |
Keita Emura | 2 | 316 | 36.97 |
Toshihiro Ohigashi | 3 | 73 | 12.10 |