摘要： 对隐藏密钥的概念进行定义，定义其为包括算法选择密钥K1、图像载体选择密钥K2和嵌入位置、顺序选择密钥K3在内的三元组。通过分析K1, K2的具体意义以及度量K3的计算复杂度，对基于图像信息隐藏系统的抗提取性进行了评价，对安全性领域的研究具有一定的指导意义。

关键词: 信息隐藏, 隐藏密钥, 抗提取性

Abstract: In the context, the concept of hiding key is defined that it is a function with three elements including K1, the secret key to choose the arithmetic, K2, the secret key to choose the image, and K3, the secret key to choose the positions and sequence of embedding. Based on the analysis of the meanings of K1, K2, and the measurement of the counting complexity of K3, the property of protection from distilling of the information hiding system based on the image is evaluated, and it has instructional significance in the research of the field of security.

Key words: information-hiding, hiding key, property of protection from distilling

中图分类号: 

• TP309.2