CAJ | 학술논문

为了实现图像安全、快速加密,设计了一种新的数字图像混沌加密算法.仿真结果表明,该算法在没有扩散函数的情况下也能很好地改变图像的直方图,可以有效地抵制已知(选择)明文攻击,而且只有1次左映射或者右映射的情况下,该方法具有高置乱程度、良好的扩散性能和足够大的密钥空间,可获得足够高的安全性.
위료실현도상안전、쾌속가밀,설계료일충신적수자도상혼돈가밀산법.방진결과표명,해산법재몰유확산함수적정황하야능흔호지개변도상적직방도,가이유효지저제이지(선택)명문공격,이차지유1차좌영사혹자우영사적정황하,해방법구유고치란정도、량호적확산성능화족구대적밀약공간,가획득족구고적안전성.
In order to satisfy the need of security and speed of image eneryption, this paper proposes a novel chaotic eneryption about digital image. The simulation results show that ,without the diffusion-algorithm, it can change the histogram of image and resist the plain-text attack very well. Furthermore, even though you just only use once left map or once right map, this algorithm has high confusion , good diffusion, large enough key space and high secure.