کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6873497 685637 2016 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Secure searching on cloud storage enhanced by homomorphic indexing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Secure searching on cloud storage enhanced by homomorphic indexing
چکیده انگلیسی
In this paper, we propose an exclusive-or (XOR) homomorphism encryption scheme to support secure keyword searching on encrypted data for cloud storage. First, this scheme specifies a new data protection method by encrypting the keyword and randomizing it by performing XOR operation with a random bit-string for each session to protect access pattern leakage; Secondly, the homomorphic evaluation key enables the searching evaluation to be on-demand calculated, thus it removes the dependency of key storage on cloud and enhance protection against cloud's violability; Thirdly, this scheme can effectively protect data-in-transit against passive attack such as access pattern analysis due to the randomization. This scheme also can reduce data leakage to service provider because the homomorphism-key solution instead of key storage on cloud. The above three features have been proved by the experiments and further tested out at Email service which can support secure subject searching. The execution time of one searching process is just in the order of milliseconds. We could get 2-3 times speedup compared to default utility grep with the concern of expensive one-time indexing which can be built off-line in advance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Future Generation Computer Systems - Volume 65, December 2016, Pages 102-110
نویسندگان
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