摘要
为了提高数字音频信息的安全性,针对音频信息较大并且复杂加密算法会导致计算量大、加密速度慢等问题,以及多段支持度情况下的动态密钥管理的复杂性,提出了一种网络多段支持度数字音频信息动态加密算法。在得到原始数字音频信息的时域图和频域图后,将连续的波形转换为二值化数据;将MP3编码技术与双随机相位编码技术结合,获取数字音频信息量子态,通过密钥在量子傅里叶频域里的相位操作和逆操作后,实现对网络多段支持度数字音频信息的动态加密。选取12段不同类型的数字音频文件,对所提方法展开实验测试,结果表明,所提方法可将原始音频信息转换为噪声,并使二者之间的相关系数始终低于0.1、信息熵始终接近8bit。
In order to improve the security of digital audio information,a network multi segment support digital audio information dynamic encryption algorithm was proposed to address the problems of large audio information and complex encryption algorithms leading to high computational complexity and slow encryption speed,as well as the complexity of dynamic key management in multi segment support situations.After obtaining the time-domain and frequency-domain diagrams of the original digital audio information,we converted the continuous waveform into binary data.Secondly,we combined the MP3 encoding technology with double random phase encoding technology to obtain the quantum state of digital audio information.After finishing the phase operation and inverse operation of the key in the quantum Fourier frequency domain,we achieved the dynamic encryption of digital audio information.Finally,we selected twelve types of digital audio files for testing the proposed method.The result shows that the proposed method can convert the original audio information into noise,while keeping the correlation coefficient always below O.1 and the information entropy close to 8 bits.
作者
宋杨
秦坤
SONG Yang;QIN Kun(Huanghe S&T University,Zhengzhou Henan 450000,China;Hubei University of Technology,Wuhan Hubei 430068,China)
出处
《计算机仿真》
2024年第12期450-454,共5页
Computer Simulation
基金
河南省哲学规划办项目(2022BYS027)。
关键词
数字音频信息
量子密码学
量子傅里叶频域
相位操作
动态加密
Digital audio information
Quantum cryptography
Quantum Fourier frequency domain
Phase
Dynamicencryption
