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The invention discloses a dData tracing method and system based on a digital watermarking technology

A technology of digital watermarking and data traceability, which is applied in the field of information security and can solve problems such as the inability to trace the source of leaks

Active Publication Date: 2019-04-12
BEIJING SANSEC TECH DEV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In traditional practice, this technology is used to embed the identity information of the obligee in the digital media, so as to realize the declaration of ownership, but it is impossible to trace the source of the leakage

Method used

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  • The invention discloses a dData tracing method and system based on a digital watermarking technology
  • The invention discloses a dData tracing method and system based on a digital watermarking technology
  • The invention discloses a dData tracing method and system based on a digital watermarking technology

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Embodiment Construction

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0024] The embodiment of the present invention provides a data traceability method based on digital watermarking technology, which is used to protect the relevant rights and interests of data obligees during the data transfer process. Generally, "data transfer" includes but is not limited to "transactions" that have a payment relationship. However, for the convenience of description, in this embodiment, "data transfer" and "transaction" are regarded as synonymous, and the term "transaction" is used in both. Moreover, the transaction can occur multiple times, and the method of this embodiment can be used for each transaction, and this embodiment only uses one transaction as an example for illustration.

[0025] The r...

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Abstract

The invention relates to a data tracing method and system based on a digital watermarking technology, and the method comprises the steps: employing a first watermark algorithm, embedding an initial watermark in an original data set, and obtaining an initial data set; E; embedding a transaction watermark into the initial data set to be delivered by utilizing a second watermark algorithm to obtain adelivery data set and delivering the delivery data set to a delivery object; J; judging whether initial watermarks exist in the to-be-traced data set or not, if yes, judging whether transaction watermarks corresponding to the identity information of the to-be-verified candidates exist in the to-be-traced data set or not, and confirming the to-be-verified candidates pointed by the to-be-traced data set according to a judgment result. According to the invention, t, the initial watermark and the transaction watermark are embedded into the data circulated by the data obligee; I; in the data rights protection stage, rights protection audit is conducted on a data obligee through an initial watermark, declaration of a membership right is achieved, t, then in the further data tracing stage, a delivery object pointed by a to-be-traced data set is confirmed through a transaction watermark, and therefore tracing of a leakage source is achieved.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data traceability method and system based on digital watermark technology. Background technique [0002] Data is the third basic strategic resource after material and energy. As an important resource, data is different from the former two, which hinders its free circulation. This particularity includes the non-destructive replication and non-exclusive nature of data, but at the same time, it can contain great value and can be regarded as its asset by the subject that owns the data. [0003] Therefore, in the practice of data resource circulation, the issue of rights protection and accountability after the illegal leakage of data assets needs to be resolved urgently. Clear data ownership and reliable rights protection methods are the premise and foundation of data transactions, while the relative lack of data rights protection and data traceability methods seriously restric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/16
CPCG06F21/16
Inventor 庄子迪闫炳豪党美刘会议
Owner BEIJING SANSEC TECH DEV
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