MicroSCOPE: Enabling Access Control in Searchable Encryption with the use of Attribute-based Encryption and SGX (Extended Version)

Antonis Michalas; Alexandros Bakas; Hai-Van Dang; Alexandr Zalitko

Paper 2019/1119

MicroSCOPE: Enabling Access Control in Searchable Encryption with the use of Attribute-based Encryption and SGX (Extended Version)

Antonis Michalas, Alexandros Bakas, Hai-Van Dang, and Alexandr Zalitko

Abstract

Secure cloud storage is considered as one of the most important problems that both businesses and end-users take into account before moving their private data to the cloud. Lately, we have seen some interesting approaches that are based either on the promising concept of Symmetric Searchable Encryption (SSE) or on the well-studied field of Attribute-Based Encryption (ABE). Our construction, MicroSCOPE, combines both ABE and SSE to utilize the advantages that each technique has to offer. We use an SSE scheme to ensure that data stored on the cloud will be protected against both internal and external attacks. Moreover, through the use of a Ciphertext-Policy ABE (CP-ABE) scheme, our construction allows efficient data sharing between multiple data owners and users. Finally, we enhance our construction with an access control mechanism by utilizing the functionality provided by SGX.

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Published elsewhere. Minor revision. The 24th Nordic Conference on Secure IT Systems
Keywords: Access Control Attribute-Based Encryption Cloud Security Hybrid Encryption Policies Storage Protection Symmetric Searchable Encryption
Contact author(s): antonios michalas @ tuni fi
History: 2019-10-01: received
Short URL: https://ia.cr/2019/1119
License: CC BY

BibTeX

@misc{cryptoeprint:2019/1119,
      author = {Antonis Michalas and Alexandros Bakas and Hai-Van Dang and Alexandr Zalitko},
      title = {MicroSCOPE: Enabling Access Control in Searchable Encryption with the use of Attribute-based Encryption and SGX (Extended Version)},
      howpublished = {Cryptology ePrint Archive, Paper 2019/1119},
      year = {2019},
      note = {\url{https://eprint.iacr.org/2019/1119}},
      url = {https://eprint.iacr.org/2019/1119}
}