A novel method for lossless image compression and encryption based on LWT, SPIHT and cellular automata

作者：

Highlights：

• Non-uniform cellular automata is used and the key stream is generated with higher robustness.

• Proposed scheme remains the high security and good coding characteristics from the SPIHT algorithm.

• Security key matrices are constructed from small size key and are used for higher security in encryption.

• Results show that the key space of the scheme is large enough to resist the brute attack.

摘要

•Non-uniform cellular automata is used and the key stream is generated with higher robustness.•Proposed scheme remains the high security and good coding characteristics from the SPIHT algorithm.•Security key matrices are constructed from small size key and are used for higher security in encryption.•Results show that the key space of the scheme is large enough to resist the brute attack.

论文关键词：Lossless compression,Lifting wavelet transform (LWT),SPIHT,Image encryption

论文评审过程：Received 21 October 2019, Revised 12 December 2019, Accepted 8 March 2020, Available online 10 March 2020, Version of Record 16 March 2020.

论文官网地址：https://doi.org/10.1016/j.image.2020.115829