Efficient and Privacy-Preserving Outsourcing of 2D-DCT and 2D-IDCT
Joint Authors
Lu, Jun
Zhang, Shengcai
An, Dezhi
Li, Yan
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
As a subset of discrete Fourier transform (DFT), discrete cosine transform (DCT), especially two-dimensional discrete cosine transform (2D-DCT), is an important mathematical tool for digital signal processing.
However, the computational complexity of 2D-DCT is quite high, which makes it impossible to meet the requirements in some signal processing fields with large signal sizes.
In addition, to optimize the 2D-DCT algorithm itself, seeking help from a cloud platform is considered to be an excellent alternative to dramatically speeding up 2D-DCT operations.
Still, there are three key challenges in cloud computing outsourcing that need to be addressed, including protecting the privacy of input and output data, ensuring the correctness of the returned results, and ensuring adequate local cost savings.
In this paper, we explore the design of a practical outsourcing protocol for 2D-DCT and 2D-IDCT, which well solves the above three challenges.
Both theoretical analysis and simulation experiment results not only confirm the feasibility of the proposed protocol but also show its outstanding performance in efficiency.
American Psychological Association (APA)
An, Dezhi& Zhang, Shengcai& Lu, Jun& Li, Yan. 2020. Efficient and Privacy-Preserving Outsourcing of 2D-DCT and 2D-IDCT. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214914
Modern Language Association (MLA)
An, Dezhi…[et al.]. Efficient and Privacy-Preserving Outsourcing of 2D-DCT and 2D-IDCT. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1214914
American Medical Association (AMA)
An, Dezhi& Zhang, Shengcai& Lu, Jun& Li, Yan. Efficient and Privacy-Preserving Outsourcing of 2D-DCT and 2D-IDCT. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214914
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214914