Bitplane Techniques For Partial Encryption of Wavelet-based Compressed Digital Images

The use of image communication has increased in recent years. In this paper, new partial encryption schemes are used to encrypt only part of the compressed data. Only 3.125-12.5% of the original data is encrypted for four different images, resulting in a significant reduction in encryption and decryption time. In the compression step, the bitplane coding technique is used. In the encryption step the Advanced Encryption Standard (AES) cipher is used. The effect of the number of different bitplane levels on the performance of the proposed techniques is studied. The proposed partial encryption schemes are fast and secure, and do not reduce the compression performance of the underlying selected compression methods.