一种安全的随机网格视觉密码方案

A secure random grid visual cryptography scheme

随机网格视觉密码体制与传统视觉密码体制相比,其数据量得到极大的降低。但这种视觉密码的安全性能却不理想。在传统随机网格体制基础上,提出了一种新的随机网格视觉密码方案。该方案与传统随机网格视觉密码相比,只增加了很少的数据量,却极为有效地提高了随机网格视觉密码的安全性能。

The visual cryptography （VC）based on random grids （RG） scheme has smaller amounts of data than the traditional VC scheme. But the security capabilities of the VC based RG is not ideal. In this paper, a new VC scheme based on RG is proposed. Compared to the traditional VC scheme based on RG, the new scheme improve the performance of security capabilities significantly by increasing a small amount of data.