TWI729781B - Data authentication system and data authentication method thereof - Google Patents

Abstract

A data authentication system and a data authentication method thereof are disclosed. The data authentication method includes the following steps: reading, by a chip access system, a chip data of a chip; receiving, by a block chain server, the chip data of the chip, and establishing a block chain address to obtain a block chain data; transforming the block chain data into a private key token; writing back, by the chip access system, the private key token to the chip; entering, by the chip access system, a transaction content; using, by the chip access system, the chip to authenticate the transaction content; and returning the authenticated transaction content to execute a block chain transaction according to the private key token.

Description

Data authentication system and its data authentication method

The invention relates to a data authentication system and its data authentication method, in particular to a data authentication system and its data authentication method that can first authenticate the content of the data to be chained.

Block chain is a kind of concatenated text records (also known as blocks) that concatenate and protect content through cryptography. Each block contains the encrypted hash of the previous block, the corresponding time stamp and transaction data. This design makes the block content difficult to tamper with. The distributed ledger connected by blockchain technology allows two parties to effectively record the transaction, and the transaction can be checked permanently. Although the characteristics of blockchain Sex is undeniable and cannot be modified in combination. However, in the prior art, when data is written to the chain, if the data is forged or erroneous, it will not be able to be verified after being uploaded.

Therefore, it is necessary to invent a new data authentication system and its data authentication method to solve the shortcomings of the previous technology.

The main purpose of the present invention is to provide a data authentication system, which can first authenticate the content of the data to be chained.

Another main purpose of the present invention is to provide a data authentication method for the above-mentioned system.

In order to achieve the above-mentioned purpose, the data authentication system of the present invention is used to perform an authentication process in a blockchain environment using a chip. Data authentication system includes chip access system and blockchain server. The chip access system includes a connection interface, a first processing module and an input interface. The connection interface is electrically connected to the chip. The first processing module is electrically connected to the connection interface for reading the chip data of the chip through the connection interface. The input interface is used for the user to input transaction content. The blockchain server is connected to the chip access system. The blockchain server includes a blockchain establishment module and a second processing module. The block chain establishment module is used to establish a block chain address to obtain block chain data. Second treatment The module is used to receive chip data, and convert the blockchain data into a private key seed and transmit it to the first processing module, so that the first processing module writes back to the chip after receiving the private key seed; where the first processing module After receiving the transaction content, the chip is used to authenticate the transaction content. Finally, the first processing module sends the authenticated transaction content back to the second processing module, so that the second processing module makes the block chain establishment module based on the private key seed. Executing blockchain transactions with certified transaction content.

The method of data authentication of the present invention includes the following steps: read the chip data of the chip by the chip access system; receive the chip data of the chip by the block chain server, and establish the block chain address to obtain the block chain data ; Convert blockchain data into private key seed; write back the private key seed to the chip by the chip access system; input the transaction content by the chip access system; use the chip to authenticate the transaction content by the chip access system; And return the verified transaction content to execute blockchain transactions based on the private key seed.

1: Data authentication system

10: chip

20: Chip access system

21: Connection interface

22: The first processing module

23: Input interface

30: Blockchain server

31: Blockchain creation module

32: The second processing module

FIG. 1 is a schematic diagram of the structure of the data authentication system of the present invention.

Figure 2 is a flow chart of the steps of the chip registration method of the present invention.

FIG. 3 is a flowchart of the steps of the method of using chip authentication of the present invention.

In order to allow your reviewer to better understand the technical content of the present invention, preferred specific embodiments are described as follows.

Please refer to FIG. 1 for a schematic diagram of the structure of the data authentication system 1 of the present invention.

In an embodiment of the present invention, the data authentication system 1 uses a chip 10 to perform an encryption process in a blockchain environment. The data authentication system 1 includes a chip access system 20 and a blockchain server 30. The chip access system 20 can be a desktop computer, a notebook computer, a smart phone, etc., so that a user can connect to the blockchain server 30 through a website or a software program, so as to use the blockchain server 30 Conduct blockchain transactions. This website or software program can be provided by the manufacturer of the blockchain server 30. The blockchain server 30 can provide users with different blockchain transactions belonging to agreements, such as Bitcoin (BTC) blockchain or Ethereum (ETH) blockchain transactions, but the present invention does not Limited to the above-mentioned blockchains, it can also be used for private blockchains, etc.

The chip access system 20 includes a connection interface 21, a first processing module 22 and an input interface 23. The connection interface 21 is electrically connected to the chip 10. The first processing module 22 is electrically connected to the connection interface 21 for using software through the connection interface 21 A development kit (Software Development Kit, SDK) is used to read the chip data of the chip 10 to perform procedures such as encryption, decryption, signature or de-signature. Since the use of public key or private key technologies for encryption, decryption, signing or de-signing, etc. are already familiar to those with ordinary knowledge in the technical field to which the present invention pertains, the principles will not be repeated here. The input interface 23 can be a virtual or physical keyboard, mouse, etc., but the present invention is not limited thereto.

The blockchain server 30 includes a blockchain establishment module 31 and a second processing module 32. The block chain establishment module 31 can store data in the block chain, that is, the process of going up the chain. The second processing module 32 is similar to the first processing module 22 and can perform processes such as encryption and decryption of data. First, the user can use the input interface 23 of the chip access system 20 to connect to the blockchain creation module 31 of the blockchain server 30 via a website or software program to apply for blockchain services. At this time, the first processing module 22 of the chip access system 20 reads the chip data of the chip 10 and transmits it to the blockchain server 30. The first processing module 22 can also encrypt the chip data before sending it. Then the block chain server 30 will receive and store the encrypted chip data of the chip 10, and the block chain establishment module 31 will obtain the block chain address to obtain a block chain data. At this time, the block chain establishment module 31 can establish a block chain address according to the user's choice of BTC block chain or ETH block chain. The second processing module 32 then this area The block chain data is converted into a private key seed (Token) to be transmitted to the first processing module 22. The second processing module 32 can generate the private key seed according to the Bitcoin Improvement Proposals (BIP) protocol. After the first processing module 22 receives the private key seed, it also encrypts it and writes it back to the chip 10. In this way, the blockchain server 30 will know and can record the data of the chip 10, and the chip 10 will also be assigned to the private key seed corresponding to the blockchain address, and the registration process can be completed.

When the user wants to perform a transaction on the blockchain, the input interface 23 of the chip access system 20 provides the user to input transaction content. For example, if a school wants to produce a graduation certificate, the user (that is, the school) inputs the graduation information of the graduate. The chip access system 20 then transmits the transaction content to the blockchain server 30 via a website or software program, so that the second processing module 32 of the blockchain server 30 encrypts and packages the transaction content and sends it back to the first processing module 22. The encryption key can be derived from the chip data obtained by the previous chip 10 registration. After receiving the transaction content, the first processing module 22 connects to the chip 10 to use the chip 10 to authenticate the transaction content. That is, the first processing module 22 takes out a chip private key of the chip 10 after receiving the transaction content, decrypts the transaction content with the chip private key, and then uses the chip private key to sign the transaction content to authenticate the transaction The correctness of the content. Finally, the first processing module 22 sends the authenticated transaction content back to the blockchain server 30. At this time, the blockchain establishment module 31 of the blockchain server 30 According to the private key seed stored in the chip 10, the address of the blockchain to be traded is known, and the blockchain establishment module 31 uses the authenticated content of the transaction to execute the blockchain transaction. Therefore, the registered chip can be used for blockchain transactions, and the transaction content can be directly authenticated by the hardware side before being uploaded to the chain to enhance the security and correctness of the transaction content. In this way, the data authentication system 1 can be used for services including a graduation certificate service, an electronic wallet or an Internet of Things communication, but the present invention is not limited to this.

It should be noted that the modules of the chip access system 20 and the blockchain server 30 of the data authentication system 1 can be constructed by hardware devices, software programs combined with hardware devices, firmware combined with hardware devices, etc. For example, a computer program product can be stored in a computer readable medium to read and execute various functions of the invention, but the invention is not limited to the above-mentioned manner. In addition, this embodiment only exemplifies a preferred embodiment of the present invention, and in order to avoid redundant description, all possible variations and combinations are not described in detail. However, those skilled in the art should understand that not all the above-mentioned modules or components are necessary. In order to implement the present invention, other detailed conventional modules or components may also be included. Each module or component may be omitted or modified as required, and there may not be other modules or components between any two modules.

Next, please refer to FIG. 2 for the step flow chart of the method for chip registration of the present invention and FIG. 3 for the step flow chart of the method for using chip authentication of the present invention to explain the present invention. Invented data authentication method. It should be noted here that although the above-mentioned data authentication system 1 is used as an example to describe the data authentication method of the present invention, the data authentication method of the present invention is not limited to the data authentication system 1 with the same structure mentioned above.

When the chip registration process is performed first, the chip access system 20 will perform step S201: applying for blockchain service.

First, the user can use the input interface 23 of the chip access system 20 to apply for blockchain services.

At this time, it will be connected to the block chain establishment module 31 of the block chain server 30 via a website or software program to proceed to step S202: start the block chain service.

At this time, the chip access system 20 will also perform step S203 at the same time: reading data on the chip.

At this time, the first processing module 22 of the chip access system 20 reads the chip data of the chip 10 and can encrypt the chip data before transmitting it to the blockchain server 30.

Therefore, the blockchain server 30 will perform step S204: receiving the chip data of the chip.

The blockchain server 30 receives the chip data of the chip 10 and stores the chip data.

Then proceed to step S205: establish a blockchain address to obtain a blockchain data.

Then the block chain establishment module 31 establishes the block chain address of the BTC block chain or the ETH block chain, and the block chain address can be regarded as the block chain data at this time.

Then proceed to step S206: transform the blockchain data into a private key seed.

The block chain establishment module 31 converts the block chain data including the block chain address into a private key seed (Token) conforming to the BIP protocol. Then the private key seed is transmitted back to the chip access system 20.

So finally the chip access system 20 will perform step S207: write back the private key seed to the chip.

Finally, the first processing module 22 encrypts the received private key seed and writes it back into the chip 10. Thereby, the registration procedure of the chip 10 can be completed.

When the chip 10 is used to authenticate data, the chip access system 10 is first used for a user to perform step S301: input a transaction content.

First, the input interface 23 of the chip access system 20 provides the user to input the transaction content to be uploaded to the blockchain.

At this time, the blockchain server 30 proceeds to step S302: receiving transaction content.

When the transaction content is transmitted to the blockchain server 30 via the website or software program for uploading, the blockchain server 30 will perform step S303: return the transaction content.

At this time, the second processing module 32 encrypts the transaction content and sends it back to the first processing module 22 by encrypting it with a key, so that the transaction content can be authenticated first. The key for encrypting the transaction content can be derived from the chip data obtained by the previous chip 10 registration.

Therefore, the chip access system 20 will perform step S304: use the chip to authenticate the transaction content.

After receiving the transaction content, the first processing module 22 connects to the chip 10, takes out a chip private key of the chip 10, decrypts the transaction content with the chip private key, and then uses the chip private key to sign the transaction content and borrow Then, the chip 10 can be used to authenticate the transaction content.

The chip access system 20 then performs step S305: returning the authenticated transaction content.

At this time, the chip access system 20 returns the authenticated transaction content to the blockchain server 30.

Finally, the blockchain server 30 proceeds to step S306: execute a blockchain transaction according to the private key seed.

Finally, the block chain establishment module 31 of the block chain server 30 knows the address of the block chain to be traded according to the private key seed stored in the chip 10, and allows the block chain establishment module 31 to execute the block using the authenticated transaction content. Chain transaction.

It should be noted here that the data authentication method of the present invention is not limited to the above-mentioned sequence of steps. As long as the object of the present invention can be achieved, the above-mentioned sequence of steps can be changed.

From the above description, it can be seen that the data authentication system 1 of the present invention can first use the chip 10 of the hardware architecture to authenticate the transaction content first, and then perform the chaining procedure. Therefore, the transaction content cannot be changed arbitrarily before or after the chain is on the chain, which can ensure the correct determination of the transaction content.

It should be noted that the above are only examples, and are not limited to the examples. Anything that does not deviate from the basic structure of the present invention should be the scope of the rights claimed by the patent, and the scope of the patent application shall prevail.

1: Data authentication system

10: chip

20: Chip access system

21: Connection interface

22: The first processing module

23: Input interface

30: Blockchain server

31: Blockchain creation module

32: The second processing module

Claims (13)

A data authentication method is applied to a data authentication system to perform an authentication process in a blockchain environment with a chip. The data authentication system includes a chip access system and a blockchain server. The method includes The following steps: read the chip data of the chip by the chip access system; receive the chip data of the chip by the block chain server, and establish a block chain address to obtain a block chain data; Convert the blockchain data into a private key seed (Token); use the chip access system to write back the private key seed to the chip; use the chip access system to input a transaction content and transmit it to the Blockchain server; the transaction content is encrypted and packaged with a key by the blockchain server and then transmitted back to the chip access system; the chip access system uses the chip to authenticate the transaction content; and the certification The completed transaction content is returned to execute the blockchain transaction based on the private key seed. For example, the method for data authentication described in item 1 of the scope of patent application, wherein the steps of using the chip to authenticate the transaction content include: After receiving the transaction content, take out a chip private key of the chip to decrypt the private key; and use the chip private key to sign the transaction content. For example, the data authentication method described in item 1 of the scope of patent application, after the chip access system reads the chip data of the chip, further includes the following steps: encrypt the chip data and transmit it to the block The chain server enables the blockchain server to receive the encrypted chip data. For example, the data authentication method described in any one of items 1 to 3 in the scope of the patent application, which further includes a user to choose a Bitcoin (BTC) blockchain or an Ethereum (ETH) area Block chain, the steps of establishing the block chain address. The method for data authentication described in any one of items 1 to 3 of the scope of the patent application further includes the step of generating the private key seed that complies with a Bitcoin Improvement Proposals (BIP) protocol. A data authentication system is used to use a chip to perform an authentication process in a blockchain environment; the data authentication system includes: a chip access system, including: A connection interface is electrically connected to the chip; a first processing module is electrically connected to the connection interface for reading data of a chip of the chip through the connection interface; and an input interface for supplying A user inputs a transaction content; and a blockchain server, which is connected to the chip access system, includes: a blockchain establishment module for establishing a blockchain address to obtain a blockchain data ; And a second processing module for receiving the chip data, and converting the blockchain data into a private key seed to be transmitted to the first processing module, so that the first processing module receives the private key The seed is written back to the chip; the entered transaction content is transmitted to the blockchain server, so that the second processing module encrypts the received transaction content with a key and sends it back to the first Processing module, the first processing module uses the chip to authenticate the transaction content after receiving the transaction content, and finally the first processing module sends the authenticated transaction content back to the second processing module to allow the According to the private key seed, the second processing module causes the blockchain establishment module to authenticate the execution of the blockchain transaction of the transaction content. Such as the data authentication system described in item 6 of the scope of patent application, wherein the chip access system is connected to the blockchain server through a website or a software program. For example, the data authentication system described in item 7 of the scope of patent application, wherein after the input interface inputs the transaction content through the website or the software program, the second processing module then returns the transaction content to the first processing Module. For example, the data authentication system described in item 8 of the scope of patent application, wherein the first processing module takes out a chip private key of the chip after receiving the transaction content, decrypts the transaction content with the private key, and then uses it The chip private key signs the transaction content so as to authenticate the transaction content. For example, in the data authentication system described in item 7 of the scope of patent application, the first processing module further encrypts the chip data and transmits it to the second processing module of the blockchain server. For example, the data authentication system described in any one of items 6 to 10 in the scope of patent application, wherein the block chain establishment module is used for the user to choose a Bitcoin block chain or an ether block chain, by This creates the blockchain address. For example, the data authentication system described in any one of items 6 to 10 of the scope of patent application, wherein the private key seed complies with a Bitcoin Improvement Proposal Protocol. For example, the data authentication system described in item 6 of the scope of patent application, the data authentication system is used for a graduation certificate service, an electronic wallet service or an Internet of Things communication service.

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