摘要
针对现有的区块时间戳间隔隐藏方法所携带信息量低的问题,提出一种多地址的时间型区块链隐蔽通信方法。首先将密文拆分并由不同的地址来传输,地址的区块时间戳间隔表示密文分片的内容;然后接收方读取并统计这些地址所在区块的间隔;最后组合还原出密文。此外,针对时间型区块链隐蔽通信系统缺少隐蔽措施的问题,还提出了一种调整交易发起时间间隔的方法,以降低因隐蔽通信行为而导致地址呈现特殊性的概率。实验结果验证了在有n个地址参与情况下,所提方法的传输速率比基础时间型区块链隐蔽通信方法提升了约n倍。
Aiming at the problem of low amount of information carried by the existing block timestamp interval hiding method,a multi-address time-based blockchain covert communication method was proposed.Firstly,the ciphertext was split and transmitted by different addresses.The content of the ciphertext fragment was represented by the block timestamp interval of the address.Then the interval of the blocks was read and counted by the receiver where these addresses were located.Finally,the ciphertext was restored by combination.In addition,in view of the lack of concealment measures in the time-based blockchain covert communication system,a method of adjusting the time interval of transaction initiation was proposed to reduce the probability of address specificity caused by covert communication behavior.The experimental results verify that the transmission rate of the proposed method is about n times higher than that of the time-based blockchain covert communication method when n addresses are involved.
作者
黄冬艳
李琨
HUANG Dongyan;LI Kun(Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《通信学报》
EI
CSCD
北大核心
2023年第2期148-159,共12页
Journal on Communications
基金
广西重点研发计划基金资助项目(桂科AB20238026)
广西自然科学青年基金资助项目(No.2022GXNSFBA035645)
国家自然科学基金资助项目(No.6217070229)
桂林电子科技大学研究生创新项目(No.2022YCXS052,No.2021YCXS042)。
关键词
区块链
隐蔽通信
信息隐藏
blockchain
covert communication
information hiding
