TY - JOUR
T1 - Do not ask me what I am looking for
T2 - Index deniable encryption
AU - Chi, Po Wen
AU - Chang, Yu Lun
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9
Y1 - 2021/9
N2 - In this network era, the cloud storage service has become increasingly important. People have become used to storing data on the cloud and accessing them anytime, anywhere. However, due to privacy issues, data should be encrypted before being uploaded to the cloud. Thus, determining how to obtain the designated data from ciphertexts is important. In recent years, numerous searchable encryption schemes have been proposed. Most of these schemes do not consider the case wherein the search behavior is monitored, and there may come a time when users will be forced to open their search records and results. Thus, in this paper, an index deniable encryption scheme that supports both searchability and deniability is proposed to ensure user privacy in the cloud storage and the outside coercion case. We integrate the Bloom filter and the CP-ABE technique to construct a searchable encryption scheme. With the redundant keyword design, the search result can be opened to a fake data for the outside coercer. The proposed work has a constant ciphertext size to multiple deniable possibilities.
AB - In this network era, the cloud storage service has become increasingly important. People have become used to storing data on the cloud and accessing them anytime, anywhere. However, due to privacy issues, data should be encrypted before being uploaded to the cloud. Thus, determining how to obtain the designated data from ciphertexts is important. In recent years, numerous searchable encryption schemes have been proposed. Most of these schemes do not consider the case wherein the search behavior is monitored, and there may come a time when users will be forced to open their search records and results. Thus, in this paper, an index deniable encryption scheme that supports both searchability and deniability is proposed to ensure user privacy in the cloud storage and the outside coercion case. We integrate the Bloom filter and the CP-ABE technique to construct a searchable encryption scheme. With the redundant keyword design, the search result can be opened to a fake data for the outside coercer. The proposed work has a constant ciphertext size to multiple deniable possibilities.
KW - Cloud storage service
KW - Deniable encryption
KW - Searchable encryption
KW - User privacy
UR - http://www.scopus.com/inward/record.url?scp=85104056956&partnerID=8YFLogxK
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U2 - 10.1016/j.future.2021.04.004
DO - 10.1016/j.future.2021.04.004
M3 - Article
AN - SCOPUS:85104056956
SN - 0167-739X
VL - 122
SP - 28
EP - 39
JO - Future Generation Computer Systems
JF - Future Generation Computer Systems
ER -