利用门罗币实现隐蔽通信

Using Monero to realize covert communication

流量分析技术的不断发展,使以往基于TCP/IP架构的隐蔽通信方式面临许多威胁。阈下信道是以数字签名、认证等密码体制作为载体的一种能够实现隐蔽通信的信道,在数字签名过程中,通信双方能够传输秘密信息,除通信双方以外的任何人不知道秘密信息的存在。区块链作为新一代技术,采用分布式结构,其公开性、数据不可篡改和安全性使之有效成为构造阈下信道的载体。论述了采用区块链技术的门罗币这种新型数字货币,并在门罗币中构建了两种阈下信道:第一种是基于签名者和验证者之间共享密钥的阈下信道;第二种则是不共享密钥的阈下信道。通过这两种阈下信道可实现隐蔽通信。

The development of traffic analysis technology makes many covert communication methods based on the TCP/IP architecture face many threats.The subliminal channel is one that can realize covert communication by using cryptographic systems such as digital signatures and authentication.During the digital signature process,both parties of the communication can transmit secret information,and no one except the two parties knows the existence of the secret information.As a new generation technology,the blockchain adopts a distributed structure,and its openness,data tampering and security make it an effective carrier for constructing subliminal channels.This article introduces Monero,a new type of digital currency that uses blockchain technology,and constructs two subliminal channels in Monero.The first is based on the sharing of keys between signers and verifiers.The second does not share keys.Covert communication is achieved through these two subliminal channels.