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Message authentication method and system

A technology of message authentication and message authentication code, applied in the field of quantum communication, can solve problems such as unproven, not realizing full communication network message authentication, and possibility of not being deciphered.

Active Publication Date: 2019-12-13
ZHEJIANG SHENZHOU QUANTUM NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The keys used in the existing technology (classic network communication) are classical algorithms based on mathematical complexity problems. The possibility of this algorithm not being deciphered in theory has not been proven. Their limitations lie in the current computing power
In the prior art, only the message authentication of the classical channel based on quantum key distribution is realized, and the message authentication of the whole communication network is not realized, and the generation process of the message authentication code for message authentication is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The message authentication system of this embodiment includes:

[0070] The information sending client is used to send the message authentication information to the quantum network service station on the network side;

[0071] A quantum network service station, which is used to provide true random numbers as corresponding user-side keys stored in the quantum key card and quantum network service station, and is also used to use the user-side key pair stored in the quantum network service station to receive After the message authentication is successful, generate new message authentication information and send it to the information receiving client;

[0072] The information receiving client is used to receive the message authentication information from the quantum network service station;

[0073] The information sending client and the information receiving client are respectively matched with quantum key cards, and the quantum key cards are used to store the user-side k...

Embodiment 2

[0116] Such as Figure 4 As shown, the difference between the message authentication system of this embodiment and Embodiment 1 is that the ciphertext message authentication method is adopted, including the following steps:

[0117] Step 1: Message authentication between quantum service center A and client A1

[0118] a. Message authentication starts: client A1 first establishes a communication connection with the matching quantum key card.

[0119] b. User-side message authentication key generation: the quantum key card obtains the key K1 and the key Q1 through the key generation algorithm AS according to the stored key seed SS and the random number generated by the random number generator. At the same time, pass the key seed ID, key generation algorithm ID and random number to Quantum Network Service Center A.

[0120] Network-side message authentication key generation: Quantum service center A finds the corresponding key seed SS' and key generation algorithm AS' in the cu...

Embodiment 3

[0137] Such as Figure 5 As shown, the difference between the message authentication system of this embodiment and Embodiment 1 is that an ciphertext message authentication method is adopted, which includes the following steps:

[0138] Step 1: Message authentication between quantum service center A and client A1

[0139] a. Message authentication starts: client A1 first establishes a communication connection with the matching quantum key card.

[0140] b. User-side message authentication key generation: the quantum key card uses the stored key seed SS and the random number generated by the random number generator to obtain the key K1 and key Q1 through the key generation algorithm AS. And submit the key seed ID, key generation algorithm ID, and random number to Quantum Service Center A.

[0141] Network-side message authentication key generation: Quantum service center A finds the corresponding key seed SS' and key generation algorithm AS' in the current quantum network ser...

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Abstract

The invention discloses a message authentication method and a message authentication system, wherein the message authentication system comprises a quantum network service station and a client side; the quantum network service station is configured at a network side; the client side is configured at a user side; Interaction of message authentication information carrying message authentication codes is carried out between the client side and the network side; comparative authentication is carried out by comparison of the respectively generated message authentication codes; a quantum key card is also arranged; the network side generates true random numbers to respectively store in the quantum key card and the network side, so that corresponding user side keys are formed; and the user side keys of the quantum key card and the network side are respectively used for generating the message authentication codes to perform comparative authentication. According to the message authentication method and system disclosed by the invention, advantages of the existing classical communication network are utilized; in combination with keys generated by a true random number generator and quantum key distribution, information data can be transmitted to a receiver only after stage-by-stage mutual message authentication is carried out; therefore, the correctness of the information data is ensured better; and furthermore, the security also cannot be reduced.

Description

technical field [0001] The invention relates to the technical field of quantum communication, in particular to a message authentication method and system based on true random number and quantum key distribution. Background technique [0002] Information security has been widely concerned by people since ancient times. Information has undoubtedly become an important strategic resource of the country. The security of the system is directly related to the success or failure of the country in many fields such as politics, economy, military, society and even foreign strategy. Nowadays, quantum secure communication technology has obvious advantages in data transmission security, and has gradually been put into practical use. Message authentication code is a verification mechanism used by both communication entities in cryptography and a tool to ensure the integrity of message data. The construction method was proposed by M.Bellare and completely depends on the Hash function, so i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/0819H04L9/0852H04L9/0869H04L9/3273
Inventor 富尧钟一民
Owner ZHEJIANG SHENZHOU QUANTUM NETWORK TECH CO LTD
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