计算机科学 ›› 2022, Vol. 49 ›› Issue (12): 368-373.doi: 10.11896/jsjkx.220600139
张国梅1, 马琳娟2, 张福泉2, 李庆珍3
ZHANG Guo-mei1 MA Lin-juan2, ZHANG Fu-quan2, LI Qing-zhen3
摘要： 针对社交平台共享图像的信息安全问题,提出了基于混沌YOLO v4和用户选择感兴趣区域(ROI)的图像加密方案。首先,利用YOLO v4自动检测图像中的目标,提供要加密的候选包围框;然后,利用cosine和polynomial映射的线性组合加密算法对用户选定的图像区域进行加密,使得只有合法授权用户才能访问共享图像的敏感信息。通过密钥发放和授权机制,实现对第三方转发图像中敏感信息的保护。实验统计和安全分析结果证明,所提方案能够抵御各种攻击,提供高度安全性,且处理速度能够满足在线用户的实时需求。
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