Research of BMP Digital Image Encryption Algorithm
Qilong Hu, Isn State · Modern Electronics Technique · 2006
Stream cipher and block cipher are main cipher systems in image encryption algorithm based on bit operation.The effect of block cipher length and diversity on BMP image encryption is profoundly studied in this paper.A principle that if block cipher length has multiple relation to the size of BMP image,the encryption effect of BMP image is terrible is pointed out.Finally,antinoise performance of encrypted image based on block cipher is analyzed.