Open AccessPartial Encryption of Compressed Image Using Threshold Quantization and AES Cipher
Author(s) -
Hameed A. Younis,
Abdulkareem Abdalla,
Turki Y. Abdalla
Publication year - 2012
Publication title -
iraqi journal for electrical and electronic engineering/al-maǧallaẗ al-ʻirāqiyyaẗ al-handasaẗ al-kahrabāʼiyyaẗ wa-al-ilikttrūniyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2078-6069
pISSN - 1814-5892
DOI - 10.37917/ijeee.8.1.1
Subject(s) - encryption , computer science , 56 bit encryption , 40 bit encryption , probabilistic encryption , advanced encryption standard , on the fly encryption , disk encryption , multiple encryption , disk encryption hardware , filesystem level encryption , data compression , disk encryption theory , computer engineering , cryptography , computer hardware , algorithm , attribute based encryption , computer network , public key cryptography
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.