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Method for realizing information integrity based on continuous quantum walk hash algorithm

A hash algorithm and continuous quantum technology, applied in secure communication devices and key distribution, can solve the problem of low quantum hashing efficiency, and achieve the effect of high security and execution efficiency

Active Publication Date: 2021-03-26
BEIJING UNIV OF TECH
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Problems solved by technology

Although the construction method is simple, it also guarantees a good collision, but the efficiency of quantum hashing is not high

Method used

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  • Method for realizing information integrity based on continuous quantum walk hash algorithm
  • Method for realizing information integrity based on continuous quantum walk hash algorithm
  • Method for realizing information integrity based on continuous quantum walk hash algorithm

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] First, according to the binary message M ∈ {0,1} * bits to select the Hamiltonian:

[0039] 2.1 Set two Hamiltonian operators H 0 = γ 0 L and H 1 = γ 1 L;

[0040] 2.2 In each time period t of walking x -t x-1 Inside, according to the binary message M∈{0,1} * bits to select which Hamiltonian to control the continuous quantum walk on the bounded one-dimensional crystal lattice, if M i =0(i=0,1,2....) select H 0 = γ 0 L, if M i =1(i=0,1,2....) select H 1 = γ 1 L;

[0041] Second, with the message M∈{0,1} * As the input of the hash algorithm, the probability value of walking to the node on the bounded one-dimensional crystal lattice is used as the output of the hash algorithm. The construction process of the hash algorithm to achieve information integrity is as follows:

[0042] 3.1 Select parameters Among them, m represents half o...

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Abstract

The invention discloses a method for realizing information integrity based on a continuous quantum walk hash algorithm. The method comprises the following steps: selecting a Hamiltonian operator according to the bit of a binary message; secondly, constructing a quantum hash algorithm by message control based on continuous quantum walk on bounded one-dimensional crystal lattices to realize information integrity; and finally, analyzing the safety and the efficiency of the constructed quantum hash algorithm by using a simulation experiment. The hash algorithm based on continuous quantum walk hasthe advantages that the efficiency of the quantum hash algorithm is obviously improved when files with the same size are calculated; and the collision performance is lower. According to the method, people can be promoted to construct a new quantum computing model and explore the application of the hash algorithm in the cryptology field to realize information integrity, and the fusion of quantum computing and traditional cryptography is further promoted. Meanwhile, the method can also be used as a key technology for password application such as digital signature and message authentication, andis widely applied to the fields of finance, securities, electronic commerce and the like.

Description

technical field [0001] The invention relates to a construction method for realizing information integrity, in particular to a construction method for realizing information integrity based on continuous time quantum walk hash algorithm on a bounded one-dimensional crystal lattice. The present invention can also be used as a key technology for cryptographic applications such as digital signatures and message authentication, and is widely used in the fields of finance, securities, e-commerce and the like. Background technique [0002] As a strategic resource, information is related to national security and national interests. Therefore, how to ensure information security has become an important research topic for domestic and foreign scholars, and information integrity is one of the important indicators to measure information security. Hash algorithm in cryptography is the core technology to achieve information integrity, and it is also a key technology for cryptographic appli...

Claims

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Application Information

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IPC IPC(8): H04L9/06H04L9/08
CPCH04L9/0643H04L9/0852
Inventor 侍伟敏王烁
Owner BEIJING UNIV OF TECH
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