Digital envelope packaging method based on quantum key and data secret communication network

Abstract

The invention relates to the field of quantum communication and information security, and particularly discloses a digital envelope packaging method based on a quantum key and a data secret communication network. The quantum key distribution technology and the digital envelope packaging technology are organically combined, the data secret communication network and the digital envelope packaging method are optimized, and on the basis that the integrity, confidentiality and non-repudiation functions of the digital envelope are met, the data transmission safety can be further improved, and the network communication efficiency is improved.

Description

technical field [0001] The invention relates to the field of quantum communication and information security, in particular to a digital envelope encapsulation method based on quantum keys, and a corresponding data security communication network. Background technique [0002] In data communication networks, digital envelope encapsulation technology is widely used to ensure the security and reliability of communication data. figure 1 A typical digital envelope encapsulation scheme in the prior art is shown. like figure 1 As shown in the figure, in order to realize the confidential communication of data, the sender uses its own private key to encrypt the hash value (plaintext digest) of the transmitted data (plaintext data) to obtain a digital signature, and then uses a symmetric key to pair the transmitted data, digital signature and The sender's public key is encrypted to obtain the data ciphertext, and at the same time, the receiver's public key is obtained and the symmetr...

AI Technical Summary

Problems solved by technology

With the improvement of computing power, there is a risk of the public and private keys being cracked, which poses a threat to the secure transmission of data; in addition, because the computing performance of the asymmetric cryptographic algorithm is relatively low, the length of the symmetric key transmitted using the public and private keys is limited, and only Using the block cipher algorithm to encrypt the data to be transmitted also has the risk of being cracked after the computing power is improved

If the transmission data is encrypted using the one-word-one-key XOR method, it is necessary to use the public-private key to transmit the same length of key as the transmitted data, which is equivalent to using the public-private key to directly encrypt the transmitted data, and thus faces the efficiency of public-private key encryption data lower question

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