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A time stamp anti-counterfeiting method and device based on signature data chain

A signature data and anti-counterfeiting device technology, which is applied in the field of cryptography and information, can solve the problems of easily tampered time stamps and counterfeit time stamps, and achieve the effects of low cost, high security and wide application prospects

Active Publication Date: 2021-01-19
北京一方信安科技有限公司
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Problems solved by technology

[0004] The main purpose of the present invention is to disclose a time stamp anti-counterfeiting method and device based on a signature data chain, which is used to solve the problem that the time stamp is easily tampered in the prior art, resulting in the forgery of the time stamp

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  • A time stamp anti-counterfeiting method and device based on signature data chain
  • A time stamp anti-counterfeiting method and device based on signature data chain
  • A time stamp anti-counterfeiting method and device based on signature data chain

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Embodiment Construction

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0023] figure 1 It is a flow chart of the time stamp anti-counterfeiting method based on the signature data chain described in the embodiment of the present invention.

[0024] see figure 1 As shown, a time stamp anti-counterfeiting method based on signature data chain includes:

[0025] S101: A time stamp anti-counterfeiting method based on a signature data chain includes: obtaining information data of the anti-counterfeiting time stamp, the information data being the request data of the anti-counterfeiting time stamp and the hash value of the request data, or the request The hash value of the data;

[0026] S103: Pack all the requested information data within a preset time period into data blocks;

[0027] S105: Based on the automatically gene...

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Abstract

The invention discloses a time stamp anti-counterfeiting method and apparatus based on a signature data chain, for the purpose of anti-counterfeiting of a time stamp. The time stamp anti-counterfeiting method comprises the following steps: obtaining information data of an anti-counterfeiting time stamp, wherein the information data is request data of the anti-counterfeiting time stamp and a hash value of the request data, or the hash value of the request data; packaging the information data of all requests in a preset time period into a data block; and based on an automatically generated signature data chain, performing packaging signing on a data block which contains signature data of the last data block and all request anti-counterfeiting time stamps in the preset time period so as to realize anti-counterfeiting of the time stamp. By use of the technical scheme, all data or hash values with anti-counterfeiting demands are packaged into blocks according to time periods and current block data containing the last signature data is packaged and signed so that the anti-counterfeiting of the time stamp is realized. Besides, the method is simple, the cost is low, and the security is high.

Description

technical field [0001] The invention belongs to the field of information technology, in particular to the field of cryptography, in particular to a time stamp anti-counterfeiting method and device based on a signature data chain. Background technique [0002] The current time stamp is basically obtained by an authoritative third party, such as a CA organization, which adds a precise time to the data that needs to be time stamped and then signs it; the precise time can be obtained through Internet time service servers, Beidou GPS navigation time service, etc.; but this method exists A big loophole is that the CA institution can now use the previous time to stamp the time stamp. For example, according to a doctor's request, the CA can stamp the electronic medical record it sends now with the time of one month ago, and by modifying Database, log system, etc. achieve the purpose of forgery. [0003] Therefore, there is a problem in the prior art that the time stamp is easily ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32
CPCH04L9/3247H04L9/3297
Inventor 李智虎
Owner 北京一方信安科技有限公司
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