计算机应用研究2017，Vol.34Issue(5)：1540-1543,4.DOI:10.3969/j.issn.1001-3695.2017.05.059
一种无损恢复的多级别的可视密码方案
Multi-level visual cryptography scheme with lossless recovery
摘要
Abstract
Traditional visual cryptography schemes presented pixel expansion and could only share one secret image.This paper proposed a multi-level visual cryptography scheme without pixel expansion.The scheme processed multiple secret images based on random grids and XOR operation.Using XOR operation on each level could recovery all secrets respectively.It could realize lossless recovery of binary secret image,and could be extended to the gray image and color image.Image transfer process introduced error correction encoding mechanism to improve the reliability of the program.Simulation experiments demonstrate that the share images have no pixel expansion and the recovery images are the same as the original images.The analysis shows the scheme meets the security requirement.关键词
可视密码/多级别/无损恢复/随机栅格/异或运算/纠错编码Key words
visual cryptography/multi-level/lossless recovery/random grid/XOR operation/error correction coding分类
信息技术与安全科学引用本文复制引用
何文才,刘畅,韩妍妍,闫翔宇..一种无损恢复的多级别的可视密码方案[J].计算机应用研究,2017,34(5):1540-1543,4.基金项目
北京自然科学基金资助项目(4144084) （4144084）
