Data covert transmission method based on block chain network
A transmission method and data concealment technology, applied in digital transmission systems, transmission systems, data processing applications, etc., can solve the problems of low concealment, inability to solve group leakage, poor scalability, etc., achieve high concealment, avoid statistical Regular, scalable effect
A transmission method and data concealment technology, applied in digital transmission systems, transmission systems, data processing applications, etc., can solve the problems of low concealment, inability to solve group leakage, poor scalability, etc., achieve high concealment, avoid statistical Regular, scalable effect
CN110225016AActive Publication Date: 2019-09-10BEIJING INSTITUTE OF TECHNOLOGYGY
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[0031] see figure 1 , the present invention provides a technical solution: a data covert transmission method based on a block chain network, including the following process:
[0032] 1. Out-of-chain key exchange phase: Before the data is transmitted in a concealed manner, the sender and receiver must exchange their respective public keys in advance. This process will be implemented in an off-chain communication channel, requiring a direct exchange of information between the receiver and the sender. To reduce the risk of off-chain communications being monitored by potential adversaries, the number of off-chain key exchanges must be kept to a minimum. In this scheme, the sender and the receiver only need one key exchange to safely complete multiple data transmissions. Off-chain key exchange can be implemented using existing technologies. For example, data transmission technology based on SSL encryption.
[0033] 2. Concealed data construction stage: In this stage, the sender...
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The invention relates to a data covert transmission method based on a block chain network, and belongs to the technical field of data covert transmission. According to the method, a public key servingas a certificate of covert communication is exchanged through an out-of-chain key exchange stage; then constructing a special transaction which contains a message encrypted by a sender private key and can leak signature information of the sender private key and is generated by using a Kleptography technology through a covert data construction stage; then, the special transaction is propagated through an in-chain data transmission stage; and finally, reading and detecting each block chain transaction propagated in the block chain network one by one by a receiver in a hidden data extraction stage, and if the signature data in the transaction can extract a private key by using a Kleptograpy technology, indicating that the transaction is a special transaction carrying encrypted data. And thereceiver decrypts the original text by using the extracted private key. Compared with the prior art, the method has the characteristic of high concealment, and an enemy cannot identify a concealed channel according to account characteristics.
Description
technical field [0001] The invention relates to a data covert transmission method, in particular to a data covert transmission method based on a blockchain network, and belongs to the technical field of data covert transmission. Background technique [0002] In modern society, the rapid development of network communication technology makes information transmission faster and more convenient. Information has become an important strategic resource in the country's military, political, economic, technological and cultural development, and the security of information transmission has attracted more and more attention. Among them, information hiding is an emerging technology to solve information confidentiality. It hides information that needs to be transmitted confidentially into digital carriers, making it difficult for third parties to detect the existence of secret information, and can better achieve the purpose of data concealment transmission. There are important uses in th...
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Patent Timeline
10 Sep 2019
Publication
CN110225016A
- IPC
- H04L29/06; H04L9/32; H04L9/14; H04L29/08; G06Q40/04
- CPC
- G06Q40/04; H04L9/14; H04L9/3247; H04L63/0442; H04L67/1095; H04L67/1097; Y02A10/40
- Inventors
- 祝烈煌; 高峰