A two-tiered device for verifying the authenticity of digital content.

Abstract

A two-tiered device for verifying the authenticity of digital content includes a data transmission module, a data identification module, a source verification module connected to the data transmission module and the data identification module, and a result generation module connected to the data transmission module, the source verification module, and the data identification module. The source verification module verifies the source data packet in the digital content to be verified obtained by the data transmission module. When the source data packet is successfully verified, the result generation module determines that the digital content to be verified has passed verification. When the source verification module fails to obtain the source data packet or the source data packet cannot be successfully verified, the data identification module determines that the digital content to be verified has passed verification. The technology of obtaining and identifying resilience verification data from the data layer of digital content, and then determining that the digital content to be verified has passed verification when the resilience verification data is successfully identified, and that the digital content to be verified has failed verification when the resilience verification data cannot be obtained by the data identification module or cannot be successfully identified by the data identification module, can maintain the authenticity and integrity of digital content even when it is subjected to destructive compression or content modification. It also achieves the technical effect of ensuring that digital content still has high resilience traceability, verifiability and legal non-repudiation even in extreme dissemination environments.

Claims

1. A two-layer verification device for the authenticity of digital content, the device comprising at least: a data transmission module for acquiring a digital content to be verified; a source verification module connected to the data transmission module for acquiring a source data packet from the digital content to be verified and verifying the source data packet; a data identification module connected to the source verification module for acquiring and identifying toughness verification data from the data layer of the digital content to be verified when the source verification module fails to acquire the source data packet or the source data packet fails verification; and a result generation module connected to the source verification module and the data identification module for determining that the digital content to be verified has passed verification when the source data packet is successfully verified or the toughness verification data is successfully identified, and determining that the digital content to be verified has failed verification when the toughness verification data cannot be acquired or cannot be successfully identified.

2. The two-layer verification device for digital content authenticity as described in claim 1, wherein the device further comprises: an identity verification module connected to the data transmission module for verifying a user's identity through a physical token; an identification generation module connected to the identity verification module for generating a resilient identifier and performing a tag protection operation on the resilient identifier to generate the resilient verification data; and an identification embedding module connected to the identification generation module for embedding the resilient verification data into a data layer of initial digital content to generate an original digital content. A signature generation module, connected to the identity verification module and the identification embedding module, is used to generate an original data package corresponding to the user's identity, perform an encrypted signature operation on the original digital content to generate original signature data, and add the original signature data to the original digital content; and an association record module, connected to the identification generation module, the identification embedding module and the signature generation module, is used to store the resilience identifier, the original digital content and the original data package in the verification database.

3. The two-level verification device for the authenticity of digital content as described in claim 2, wherein the identification generation module generates the resilience verification data based on the original digital content.

4. The two-level verification device for the authenticity of digital content as described in claim 2, wherein the identification embedding module performs frequency domain conversion on the original digital content to convert the original digital content into a frequency domain space, analyzes the energy distribution of different frequency bands in the frequency domain space to determine the target region of the original digital content that is least susceptible to distortion due to compression, and adds the resilience verification data to the target region, or analyzes the edge region or textured complex region of the original digital content to determine the target region, and embeds the resilience verification data in the target region.

5. The two-level verification device for the authenticity of digital content as described in claim 1, wherein the data recognition module is further used to decrypt the resilience verification data to obtain a resilience identifier, obtain an original digital content corresponding to the resilience identifier from a verification database, compare the similarity between the original digital content and the digital content to be verified and mark the changed area or provide the original digital content for manual comparison.

6. The two-level verification device for the authenticity of digital content as described in claim 1, wherein the result generation module is further used to identify one of the presented contents of the digital content to be verified and to search for relevant information based on the presented content.

7. The apparatus for verifying the authenticity of digital content as described in claim 1, wherein the data recognition module performs frequency domain analysis on the digital content to be verified to determine one of the least distorted target regions in the digital content to be verified, obtains multiple data segments distributed in different parts of the target region, and reconstructs the resilience verification data based on the recognition data of the data segments.

8. The two-layer verification device for digital content authenticity as described in claim 1, wherein the source verification module is further configured to obtain a digital signature and a digital certificate from the source data package, and generate a determination result for the verification result of the source data package based on the integrity of the digital signature, the validity of the digital certificate and the completeness of the source data package, and the data recognition module is further configured to select a toughness verification data from the data layer of the digital content to be verified based on the determination result, and identify the toughness verification data.

9. The two-level verification apparatus for the authenticity of digital content as described in claim 1, wherein the result generation module is further used to determine whether the digital content to be verified is partially credible based on the verification result generated by the source verification module and the identification result generated by the data identification module.

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