基于图片的密码存储器  

A Password Manager Based on Picture

作　　者：杨苏润 魏冉 杨慧 谢天圻 郭小川 徐则中[1] YANG Surun;WEI Ran;YANG Hui;XIE Tianqi;GUO Xiaochuan;XU Zezhong(School of Computer Information Engineering, Changzhou Institute of Technology, Changzhou 213032)

机构地区：[1]常州工学院计算机信息工程学院,江苏常州213032

出　　处：《常州工学院学报》2021年第3期41-45,共5页Journal of Changzhou Institute of Technology

基　　金：常州工学院大学生创新创业训练计划项目(202011055011Z)。

摘　　要：为了防止密码遗忘问题,运用图像信息隐藏技术,提出了一个基于图片的密码存储器。首先对图片进行初始化,嵌入初始化标记和抗隐写分析处理。通过调整图片像素蓝色分量的低位比特值,把一组账号密码添加到图片中,并且能够对已存储在图片中的密码进行更新和删除。同时,根据输入的账号可以从图片中查询对应的密码。基于图片的密码存储器具有更好的隐蔽性,提高了用户个人密码的安全性。In order to prevent the problem of password forgetting,a method of password hiding and query based on image information hiding technology is provided.First,initialize the image and write the initialization mark.Next,transform the account and password into binary bit string.By adjusting the lowest bit value of the blue component of the image pixels,a group of account and password are hidden in a row of pixels in the picture.According to the input account,the corresponding password can be found from the picture by analyzing the lowest bit value of the blue component of the corresponding pixel.The password is hidden in an ordinary picture,which has better concealment and improves the security of users personal password.

关 键 词：信息隐藏 LSB算法 图像处理 密码存储器 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]