摘要
在广播通信的密文攻击场景下,密钥会面临子集覆盖泄露问题,导致难以从通信通道中筛选出稳定特征,生成的密钥安全性较低。因此,文章提出密文攻击下广播通信防泄露的密钥方法。该方法运用方差和鲁棒性公式从通信通道中筛选出稳定特征。将稳定特征进行分级并量化为初始二进制序列,初始二进制序列结合对应密钥值输入随机硬件库,得到初级密钥。为了防止泄露,使用哈希函数再次加密量化,生成密文攻击下广播通信防泄露密钥。实验结果表明,该方法选取通信通道特征稳定,生成密钥量较高,解密成功率低,安全性高可以防止通信密文泄露。
In the ciphertext attack scenario of broadcast communication,the key will face problems of subset overlay leakage,making it difficult to filter out stable features from the communication channel and resulting in low security of the generated key.Therefore,a key method for preventing leakage in broadcast communication under ciphertext attacks is proposed.The variance and robustness formulas are used to screen out the stable features from the communication channels.The stable features are graded and quantified as the initial binary sequence.The initial binary sequence,combined with the corresponding key values,is input into the random hardware library to obtain the primary key.To prevent leakage,a hash function is used to re-encrypt and quantify,generating an anti-leakage key for broadcast communication under ciphertext attacks.The experimental results show that this method selects stable characteristics of the communication channel,generates a relatively high amount of keys,has a low decryption success rate,and has high security,which can prevent the leakage of communication ciphertext.
作者
谢婷
XIE Ting(Jiangxi Radio and Television Monitoring Center,Nanchang 330046,China)
出处
《无线互联科技》
2025年第15期105-109,共5页
Wireless Internet Science and Technology
关键词
密文攻击
广播通信
密钥设计
防泄露
密钥特征点
ciphertext attack
broadcast communication
key design
leak prevention
key feature point
