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Message integrity protection method in quantum digital signature

A quantum digital signature and message integrity technology, applied in the field of information security, can solve problems such as the inability to guarantee the integrity of the signed message, and achieve the effect of broad application prospects and important application prospects.

Inactive Publication Date: 2015-10-28
LUOYANG NORMAL UNIV
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Problems solved by technology

[0008] The purpose of this invention is to solve the important security problem that the current quantum digital signature technology scheme cannot guarantee the integrity of the signed message, and provide theoretical guidance and algorithm support for the application and development of quantum digital signature technology

Method used

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  • Message integrity protection method in quantum digital signature

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Embodiment Construction

[0026] A method for protecting message integrity in quantum digital signatures, comprising the following steps:

[0027](1) First, the signer encodes each bit of the message 01, encoding 0 as 00 and 1 as 01;

[0028] (2) Next, the signer selects the signature key starting index 101 (binary number) and encodes it as 010001;

[0029] (3) Then, the signer adds a start symbol 11 and an end symbol 11 at the beginning and end of the encoded bit sequence 0100010001, and finally the message bit 01 is encoded as 11010001000111.

[0030] (4) For each bit in 11010001000111, the signer uses the technique used in the initialization stage to sign a single bit in literature [1-4] to select the signature key to sign each bit in turn, so that the final signature of message 01 is :

[0031]

[0032] The subscript indicates the index of the signing key used by the signer. Finally, the signer sends the message-signature pair Sent to signed recipients.

[0033] (5) Signature receiver pair ...

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Abstract

The invention relates to a message integrity protection method in a quantum digital signature. Through initialization, special signature and verification, a start character and an end character are 11, and no illegal codons 10 and 11 are therebetween. The conventional quantum digital signature technical scheme has the problem that the signed message integrity cannot be guaranteed. The message integrity protection method solves the above important problem of safety, provides a technical support for further research and development of the quantum digital signature technology, and has important and extensive application prospect.

Description

technical field [0001] The invention belongs to the technical field of information security, and mainly relates to the integrity protection technology of signed messages in the quantum digital signature technical scheme. Background technique [0002] Digital signature technology is mainly used to protect the integrity and non-repudiation of messages. However, the security of traditional digital signature technology solutions is generally based on certain mathematical problems, such as large number decomposition problems and discrete logarithm problems. The continuous improvement of speed and the proposal of various advanced algorithms, especially the possible emergence of quantum computers, make the security of traditional digital signature technology face severe challenges. Therefore, Gottesman and Chuang proposed the concept of quantum digital signature in 2001 [1] , and using the quantum one-way function to give the first quantum digital signature technology scheme, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
Inventor 王天银蔡晓秋魏春艳张瑞玲
Owner LUOYANG NORMAL UNIV
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