CN-122027141-A - Quantum video anti-counterfeiting signature system, terminal, chip and method for real-time quantum random number stream

CN122027141ACN 122027141 ACN122027141 ACN 122027141ACN-122027141-A

Abstract

The invention discloses a quantum video anti-counterfeiting signature system, a terminal, a chip and a method for real-time quantum random number flow, which relate to the fields of quantum information technology and multimedia security and are executed by video event generating equipment, wherein a quantum random number generator is arranged in the equipment and can continuously generate high-speed quantum random number flow; the method comprises the steps of responding to video event generation, triggering a hardware synchronous event through a hardware synchronous signal channel, acquiring a section of continuous random number sequence related to the video event from a quantum random number stream under the drive of the hardware synchronous event to serve as a quantum fingerprint of the video event, embedding the quantum fingerprint into media data corresponding to the video event in a watermarking manner to generate an anti-counterfeiting video event, recording the initial position of the continuous random number sequence in the quantum random number stream to serve as an inter-event related value, and utilizing the physical continuity of the continuous random number stream to serve as inter-frame related value.

Inventors

TONG YINGWEI

Assignees

安徽云玺量子科技有限公司
童迎伟

Dates

Publication Date: 20260512
Application Date: 20260316

Claims (18)

1. The quantum video anti-counterfeiting method of the real-time quantum random number stream is characterized by being executed by video event generating equipment, wherein a quantum random number generator is arranged in the equipment, and can continuously generate high-speed quantum random number stream, and the method comprises the following steps of: A quantum random number generator integrated by the device itself continuously generates a quantum random number stream; Triggering a hardware synchronization event once through a hardware synchronization signal channel in response to the generation of the video event; Under the drive of the hardware synchronous event, a section of continuous random number sequence associated with the video event is obtained from the quantum random number stream and used as the quantum fingerprint of the video event; Embedding the quantum fingerprint into media data corresponding to the video event in a watermark manner to generate an anti-counterfeiting video event; and recording the initial position of the continuous random number sequence in the quantum random number stream as an inter-event correlation value.
2. The method of claim 1, wherein the video event comprises a video frame captured by a camera, a video frame generated or processed by a video editing device, a key frame of a video file.
3. The method of claim 1, wherein the hardware synchronization signal path comprises a physical wire, an on-chip private network, or a synchronization clock tree for implementing synchronization such that each event-acquired random number sequence corresponds to a quantum random number stream fragment at the time of occurrence of the event.
4. The method of claim 1, further comprising encapsulating the start position information in video supplemental enhancement information for transmission with the video event for use in authentication.
5. The method of claim 1, wherein the watermarking pattern comprises a visually visible watermark or a visually invisible watermark, the invisible watermark employing a frequency domain embedding method integrated with a video encoder, modulating quantum fingerprints into DCT or DWT coefficients during encoding, and enhancing compression resistance by error correction coding.
6. The method of claim 1, further comprising generating a quantum signature of the video event based on at least one of the quantum fingerprint, a hardware fingerprint of the device, and a content feature of the current video event, and watermarking the quantum signature with the quantum fingerprint or as part of a final quantum fingerprint.
7. The method of claim 6, wherein the hardware fingerprint of the device is obtained from a physically unclonable function, wherein the content feature is an image hash value or a key feature value of a current video frame, wherein the key feature value comprises a perceptual hash, an edge strength, or a pixel statistic.
8. The method of claim 6, wherein the quantum signature is obtained by hashing, symmetric encryption, or asymmetric signature operations on input data comprising a combination of at least two of the quantum fingerprint, the hardware fingerprint, and the content feature.
9. The quantum video anti-counterfeiting verification method for the real-time quantum random number stream is characterized by comprising the following steps of: Acquiring a video event sequence to be verified and initial position information corresponding to each event; extracting watermarks from media data corresponding to each video event to obtain quantum fingerprints of each event, wherein the quantum fingerprints comprise a section of continuous random number sequence; Arranging the random number sequences extracted by each event according to the occurrence sequence of the event, and checking whether the random number sequences form a continuous address sequence or not by utilizing the initial position information, namely, whether the initial position of the random number sequence of the subsequent event is equal to the initial position of the previous event plus the sequence length; if the video event is continuous, the verification is passed, otherwise, the video event is tampered, and the tampered position is positioned according to the interruption point.
10. The method of claim 9, wherein verifying the validity of each quantum signature if the quantum signature is embedded in the quantum fingerprint comprises recalculating a reference signature based on the extracted quantum fingerprint, a known device hardware fingerprint, and content characteristics of the current event and comparing the reference signature to the extracted signature, and if so, the signature is valid.
11. The method of claim 9, wherein the starting location information is parsed from video supplemental enhancement information.
12. The utility model provides a quantum video anti-fake signature terminal of real-time quantum random number stream which characterized in that includes: a video event generating unit for generating video frames or processing video events; the quantum random number generator is integrated in the terminal and is used for continuously generating high-speed quantum random number flow; The hardware synchronous event generator is connected with the video event generating unit and the quantum random number generator through a hardware synchronous signal channel and is used for triggering synchronous events when each event is generated; The hardware processing unit is connected with the hardware synchronous event generator and the quantum random number generator and is used for reading a continuous random number sequence from the quantum random number stream and recording the initial position of the continuous random number sequence; the watermark embedding unit is connected with the hardware processing unit and used for embedding the continuous random number sequence into the video frame image as a quantum fingerprint; And the storage unit is connected with the processing unit and is used for temporarily storing the initial position information of the random number stream.
13. The terminal of claim 12, further comprising a packaging unit configured to package the start position information in video supplemental enhancement information.
14. The terminal of claim 12, further comprising a hardware identity unit for providing a hardware fingerprint of the device, the hardware identity unit comprising a physically unclonable function unit, and a signature generation unit for generating a quantum signature based on the quantum fingerprint, the hardware fingerprint, and the content feature.
15. A security chip for the anti-counterfeiting of video events, characterized by the integration of: the quantum random number generator is used for continuously generating a quantum random number stream; the hardware synchronous event generator is used for receiving an external video event synchronous signal and triggering a synchronous event through a hardware synchronous signal channel; The hardware processing unit is connected with the quantum random number generator and the hardware synchronous event generator through an on-chip data bus and is used for reading a continuous random number sequence from the quantum random number stream and recording the initial position of the continuous random number sequence; And the watermark embedding unit is connected with the hardware processing unit and used for embedding the continuous random number sequence into video data as quantum fingerprints. And the at least one external interface is used for connecting an external video source and the main processor.
16. The chip of claim 15, further integrated with a signature generation unit and a hardware identity unit for providing a hardware fingerprint of the device.
17. A quantum video anti-counterfeit signature system of a real-time quantum random number stream, comprising: at least one terminal according to claim 12; an authentication server for performing the method of any one of claims 9 to 11; an optional blockchain network for storing the certification certificates of the quantum fingerprints of critical events or their hash values.
18. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method of any one of claims 1 to 11.

Description

Quantum video anti-counterfeiting signature system, terminal, chip and method for real-time quantum random number stream Technical Field The invention relates to the fields of quantum information technology and multimedia security, in particular to a quantum video anti-counterfeiting signature system, a terminal, a chip and a method for real-time quantum random number flow. Background With the rapid development of artificial intelligence content generation technology, the problems of video counterfeiting and deep counterfeiting are increasingly serious. Counterfeit video can be used to make false news, tamper with judicial evidence, implement financial fraud, and pose a serious threat to public security, judicial fairness, and reputation of business. The prior video anti-counterfeiting technology is mainly divided into two types, namely a scheme based on digital watermarking, wherein information is embedded into a video, but pseudo-random numbers are adopted, the information is easy to predict and lack of inter-frame physical association, and a scheme based on blockchain, wherein the video hash is subjected to uplink certification, but the video hash is high in delay, cannot be protected in real time, only the existence can be demonstrated, and frame-level tampering cannot be detected. In the prior art, CN119255061a applied by mobile information technology limited company discloses a video signature method, a video signature verification method and related equipment, and quantum random numbers are used for generating watermark signature strings and embedding a plurality of video frames. However, the scheme has the following defects that the quantum random number can be provided for presetting or outside, the quantum random number is not continuously generated by the equipment, long-term continuity and physical true randomness cannot be guaranteed, the signature character string is generated by the quantum random number and the identity mark, a plurality of frames share the same signature, frame-level independence is lacked, frame-level physical association is not introduced, frame loss, insertion and other timing attacks cannot be detected, a hardware synchronization mechanism is not adopted, and an asynchronous attack window exists. More importantly, the existing scheme mostly depends on complex mathematical algorithms (such as hash chains and digital signatures), and the security foundation is still based on mathematical problems and faces quantum computing threats. Meanwhile, video anti-counterfeiting is not limited to camera acquisition, and video editing equipment is covered. In the video post-production, the processing (such as clipping and special effect adding) of each frame should be regarded as a video event, and the real-time quantum random number should be bound to ensure the credibility of the whole production chain. A Quantum Random Number Generator (QRNG) generates true random numbers based on quantum physics processes, with unpredictable, unclonable characteristics. If the QRNG integrated with the device itself can continuously generate quantum random number stream and physically and synchronously bind the quantum random number stream with video frames, each frame can obtain a unique random number sequence as a 'frame fingerprint', and the inter-frame sequence is naturally ensured by the continuity of the random number stream to form inter-frame association of a physical layer. The scheme places the safety foundation on physical randomness, greatly simplifies the mathematical algorithm, and can effectively resist various kinds of tampering. Disclosure of Invention Based on the technical problems in the background art, the invention provides a quantum video anti-counterfeiting signature system, a terminal, a chip and a method for real-time quantum random number stream, which utilize the physical continuity of continuous random number stream as inter-frame association to realize an anti-counterfeiting mechanism with minimized mathematical dependence and preferential physical characteristics, can efficiently detect video tampering, and is suitable for camera acquisition and video editing equipment. The invention provides a quantum video anti-counterfeiting method of real-time quantum random number stream, which is executed by video event generating equipment, wherein a quantum random number generator is arranged in the equipment, and can continuously generate high-speed quantum random number stream, and the method comprises the following steps: A quantum random number generator integrated by the device itself continuously generates a quantum random number stream; Triggering a hardware synchronization event once through a hardware synchronization signal channel in response to the generation of the video event; Under the drive of the hardware synchronous event, a section of continuous random number sequence associated with the video event is obtained from the quantum random number stream and used