Cover
Vol. 8 No. 1 (2012)

Published: November 30, 2012

Pages: 1-11

Original Article

Partial Encryption of Compressed Image Using Threshold Quantization and AES Cipher

Hameed A. Younis 1 Abdulkareem Y. Abdalla Turki Y. Abdalla 2
1Dept. of Computer Science, College of Science, University of Basrah, Basrah, Iraq
2Dept. of Computer Engineering, College of Engineering, University of Basrah, Basrah, Iraq .
History
  • Received: September 30, 2012
  • Available Online: November 30, 2012
DOI

https://doi.org/10.37917/ijeee.8.1.1

Abstract

Cryptography is one of the technological means to provide security to data being transmitted on information and communication systems. When it is necessary to securely transmit data in limited bandwidth, both compression and encryption must be performed. Researchers have combined compression and encryption together to reduce the overall processing time. In this paper, new partial encryption schemes are proposed to encrypt only part of the compressed image. Soft and hard threshold compression methods are used in the compression step and the Advanced Encryption Standard (AES) cipher is used for the encryption step. The effect of different threshold values on the performance of the proposed schemes are studied. The proposed partial encryption schemes are fast, secure, and do not reduce the compression performance of the underlying selected compression methods.

Keywords

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