Browsing history storage method using blockchain

Abstract

To provide a method that enables more reliable "complete browsing history storage" by using blockchain, which makes it extremely difficult even for administrators to modify stored content.SOLUTION: A camera system provided herein is configured to use blockchain to store an access history to image files captured by a camera and / or an access history to information obtained as a result of image analyses performed on the image files using an artificial intelligence (AI) system or the like.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This is a technical field related to methods for preventing violations of the privacy of ordinary citizens in street camera systems, particularly in ultra-high density street camera systems where network cameras are installed in every street light. [Background technology]

[0002] In the patent below, the invention for "complete storage of browsing history" shows a method for storing browsing history on a server operated by a third-party organization. In this case, by using a blockchain as the storage destination, we have invented a method that makes it virtually impossible for the administrator (assuming a government organization) to tamper with the history.

[0003] [Patent Document 1] Patent No. 6671627

[0004] Summary of the Invention [Problem to be solved by the invention]

[0005] By using blockchain, a storage method that is extremely difficult even for operators to alter, the goal is to more reliably "preserve complete browsing history." [Means for solving the problem]

[0006] To achieve the above objective, the invention related to claim 1 is a camera system characterized by storing, in a blockchain, the access history to image files captured by a camera and / or the access history to information obtained as a result of image analysis of said image files by an artificial intelligence (AI) system or the like. Ethereum, Hyperledger Fabric, and other similar platforms are suitable as blockchain platforms for the prototype system. It is important to review the consensus algorithm of the blockchain network and adopt an energy-efficient algorithm. For example, algorithms such as Proof of Stake (PoS) tend to consume less energy than Proof of Work (PoW). The minimum number of servers required to enable a blockchain consensus system depends on the blockchain design and consensus algorithm. Major blockchain consensus algorithms include Proof of Work (PoW), Proof of Stake (PoS), Delegated Proof of Stake (DPoS), and Practical Byzantine Fault Tolerance (PBFT), each with different requirements. A sufficient number of nodes and their reliability are important to ensure the reliability and security of the consensus system. In general, algorithms such as PoS and DPoS tend to be able to form effective consensus with fewer nodes than PoW.

[0007] Claim 2 is the camera system of claim 1, characterized in that the blockchain information is recorded on multiple servers. The blockchain itself can be created and operated on a single server, but by using a majority voting system using multiple servers, it becomes more difficult to tamper with it.

[0008] Claim 3 is a camera system according to claim 1 or claim 2, in which the viewer information recorded in the viewing information uses an RSA public key issued by the viewer. It is desirable to use various existing encrypted communication protocols, or original encrypted communication protocols based on these, as the communication protocol within the system based on this invention. It is also preferable to use an RSA public key issued by the viewer. Examples of various existing encrypted communication protocols include TLS (Transport Layer Security), SSL (Secure Sockets Layer), IPsec (Internet Protocol Security), and SSH (Secure Shell).

[0009] The invention related to claim 4 is a camera system according to claims 1 to 3, characterized in that image files taken by the camera and / or information obtained as a result of image analysis of said image files by an artificial intelligence (AI) system or the like are stored within said camera.

[0010] The invention related to claim 5 is the camera system described in claims 1 to 4, characterized in that the camera is a "street light with a built-in camera."

[0011] The invention related to claim 6 is a camera system according to claims 1 to 5, characterized in that it is a system in which three components - a camera, a viewing device, and a recording server - are connected to the Internet, and multiple viewing devices can be connected to one recording server, and multiple cameras can be connected to one viewing device.

[0012] The invention related to claim 7 is a camera system according to claims 1 to 6, characterized in that all communication data is encrypted and all communication is encrypted.

[0013] The invention related to claim 8 is a camera system according to claims 1 to 7, characterized in that the "camera" is a "camera and various sensors."

[0014] The invention related to claim 9 is a camera system according to claims 1 to 8, characterized in that the "image files" are "data files acquired by cameras and various sensors." [Effects of the Invention]

[0015] The effects of the present invention will be explained based on Example 1 of the present invention shown in Figure 1. The patent's components are Camera A, which is installed on a utility pole or other location for security purposes; Viewer B, who views the images captured by the camera; and Viewing Record Server C, which records the image viewing history. These are connected via a network and can communicate with each other. Viewer B has the ability to generate an RAS encryption key, send the generated public key to Camera A, and decrypt images encrypted with that public key using its own private key. Camera A also has the ability to encrypt images recorded inside the camera based on the public key sent by Viewer B, and send them to Viewer B via the network.

[0016] Camera A has a unique ID that identifies itself, and takes images at regular intervals, recording the time the images were taken internally. In addition, in response to a request from viewer B (1), it encrypts the desired image using the RAS encryption public key sent with the request and sends it to viewer B (2), along with sending information to viewer record server C including Camera A's ID, viewer B's public key, and the time the image was taken that was sent to viewer B (3). Viewer record server C records the information sent from camera A in a blockchain-based database.

[0017] The above system has the following features. First, viewer B requests camera A to encrypt an image using the viewer's unique RAS encryption public key, enabling only viewer B to decrypt and view the image. Even if a third party obtains an encrypted image sent over the network, they will not be able to decrypt it and view it. For the same reason, it is meaningless for a third party to pose as viewer B and request an image from camera A in terms of viewing the image. On the other hand, because the viewing record is recorded in a form that is difficult to tamper with using the viewing information sent by camera A to C, viewer B will not be able to conceal the fact that he or she viewed the image if this viewing record is made public. [Brief explanation of the drawings]

[0018] [Figure 1] Figure 1 is a schematic diagram of Example 1. [Figure 2] Figure 2 is a schematic diagram of Examples 1-7. DETAILED DESCRIPTION OF THE INVENTION [Example]

[0019] Example 1 shown in Figure 1 is an example of claim 1. [Example]

[0020] Example 2 is an example of claim 4. Example 2 is a camera system as defined in claim 1, characterized in that image files taken by the camera and / or information obtained as a result of image analysis of said image files by an artificial intelligence (AI) system or the like are stored inside said camera. This form is expected to become standard in the future in order to save on communication traffic. [Example]

[0021] Example 3 is an example of claim 5. Example 3 is a camera system according to claim 1 or claim 2, characterized in that the camera is a "street light with a built-in camera." Built-in street light cameras are expected to become the standard in the future because they save on installation costs. [Example]

[0022] Example 4 is an example of claim 6. Example 4 is a camera system according to claims 1 to 3, characterized in that the system has three components, a camera, a viewing device, and a recording server, connected to the Internet, and that multiple viewing devices can be connected to one recording server, and multiple cameras can be connected to one viewing device. It is expected that the existence of these three components will become standard in the future. [Example]

[0023] Example 5 is an example of claim 7. Example 5 is a camera system according to claims 1 to 4, characterized in that all communication data is encrypted and all communication is encrypted. It is expected that encryption of both the data communicated and the communication using proprietary specifications will become standard in the future. [Example]

[0024] Example 6 is an example of claim 8. Example 6 is a camera system according to claims 1 to 5, characterized in that the "camera" is a "camera and various sensors (temperature sensor, humidity sensor, brightness sensor, microphone (acoustic sensor), infrared sensor, antenna (electromagnetic wave sensor), etc.)." It is expected that the addition of various sensors in addition to cameras will become commonplace in the future when such systems are widely put into practical use. [Example]

[0025] Example 7 is an example of claim 9. In Example 7, the "image file" is a "data file acquired by a camera and various sensors." [Industrial Applicability]

[0026] By using blockchain to "completely preserve browsing history," it becomes possible to make alterations extremely difficult even for administrators, making it possible to achieve even more complete "complete preservation of browsing history." Furthermore, by using encryption (such as RAS encryption) for communications between each party (camera, viewer (assuming approximately 1,700 local governments nationwide), and a third-party organization (assuming a national organization) that specializes in recording browsing history), hacking by third parties can be more reliably prevented.

Claims

1. A camera system characterized by storing, via blockchain, the access history of image files captured by the camera and / or the access history of information obtained as a result of image analysis of the image files using an artificial intelligence (AI) system or the like.

2. The camera system of claim 1, wherein the blockchain information is recorded on multiple servers.

3. 3. A camera system according to claim 1, wherein a public key of an RAS cipher issued by a viewer is used as viewer information recorded in the viewing information.

4. A camera system as described in claims 1 to 3, characterized in that image files taken by the camera and / or information obtained as a result of image analysis of the image files by an artificial intelligence (AI) system or the like are stored within the camera.

5. A camera system according to claims 1 to 4, characterized in that the camera is a "street light with a built-in camera."

6. A camera system as described in claims 1 to 5, characterized in that the three components of the camera, viewing device, and recording server are connected to the Internet, multiple viewing devices can be connected to one recording server, and multiple cameras can be connected to one viewing device.

7. 7. A camera system according to claim 1, wherein all communication data is encrypted and all communication is encrypted.

8. A camera system according to claims 1 to 7, characterized in that the "camera" is a "camera and various sensors."

9. A camera system according to claims 1 to 8, characterized in that the "image files" are "data files acquired by cameras and various sensors."

Images