WO2020103573A1 - Block chain-based network transaction signature method and device, and terminal equipment - Google Patents

Abstract

A block chain-based network transaction signature method and device, and a terminal equipment, the signature method comprises: in a current transaction message, acquiring a TxOut Hash value under an input field respectively corresponding to each input required for acquiring the current transaction, and the current transaction message is the transaction message of the current transaction (S101); acquiring a previous transaction message respectively corresponding to each input required for acquiring the current transaction (S102); calculating the Hash value of each previous transaction message to obtain the Hash value corresponding to each input (S103); determining whether the calculated Hash value corresponding to each input is consistent with the TxOut Hash value under the input field corresponding to the input (S104); if the calculated Hash value corresponding to each input is consistent with the TxOut Hash value under the input field corresponding to the input, signing the current transaction message (S105). The signature method can better ensure users' fund safety to some extent.

Description

Signature method, device and terminal equipment based on blockchain network transaction

This application declares to enjoy the priority of the Chinese patent application with the application number CN201811390264.7 and the invention titled "A signature method, device and terminal equipment based on blockchain network transactions" submitted on November 21, 2018 The entire content of the application is incorporated in this application by reference.

Technical field

The present application belongs to the field of network transaction technology, and particularly relates to a signature method, signature device, terminal device and computer-readable storage medium based on a blockchain network transaction.

Background technique

With the development of blockchain technology, various electronic currencies (such as Bitcoin, Litecoin, Ether, etc.) circulate in large quantities in the blockchain network.

For the current blockchain network, when users perform transfer operations in the blockchain network, they need to pay a certain handling fee. The calculation formula for the handling fee is: the sum of the amount of each transaction input-the output of each transaction The sum of the amounts. For example, for a blockchain network that uses Bitcoin as the transaction currency, when user A transfers money to user B, the amount of each transaction input used by user A is 2 bitcoin and 5 bitcoin, and user A 1 bitcoin was transferred to user B, and the blockchain network changed 5.5 bitcoins to user A (although the 5.5 bitcoin was returned to user A, but still counted as the transaction output of this transaction), then in this transaction , User A needs to pay a handling fee of 0.5 Bitcoin.

technical problem

It can be seen that when a user is illegally providing multiple transaction inputs when transferring money, it will cause the user to pay more processing fees. Therefore, when the user performs a transfer operation in the blockchain network, how to better Ensuring the safety of users' funds is a technical problem that needs to be solved urgently.

Technical solution

The first aspect of the present application provides a signature method based on a blockchain network transaction. The above-mentioned blockchain network transaction message includes an input field corresponding to each transaction input and an output field corresponding to each transaction output. , Each input field includes the TxOutHash value of the output hash, each legal input corresponds to the previous transaction message, and the previous transaction message corresponding to each legal input is that there is an output field, the output The output corresponding to the field is the legal input, and the TxOutHash value corresponding to each legal input is the same as the hash hash value of the previous transaction message corresponding to the legal input;

The above signature methods include:

In this transaction message, obtain the TxOutHash value under the input field corresponding to each input required for this transaction. The above transaction message is the transaction message of this transaction;

Get the previous transaction message corresponding to each input required for this transaction;

Calculate the hash hash value of each previous transaction message to get the hash value corresponding to each input;

Determine whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the above transaction message is signed.

The second aspect of the present application provides a signature device based on a blockchain network transaction. The above-mentioned blockchain network transaction message includes an input field corresponding to each transaction input and an output field corresponding to each transaction output. , Each input field includes the TxOutHash value of the output hash, each legal input corresponds to the previous transaction message, and the previous transaction message corresponding to each legal input is that there is an output field, the output The output corresponding to the field is the legal input, and the TxOutHash value corresponding to each legal input is the same as the hash hash value of the previous transaction message corresponding to the legal input;

The above signature device includes:

The TxOutHash acquisition module is used to obtain the TxOutHash value under the input field corresponding to each input required for this transaction in this transaction message. The above transaction message is the transaction message of this transaction;

The previous message acquisition module is used to obtain the previous transaction message corresponding to each input required for this transaction;

The hash value calculation module is used to calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input;

The judgment module is used to judge whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

The signature module is used to sign the above transaction message if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input.

A third aspect of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the method of the first aspect. A step of.

A fourth aspect of the present application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method of the first aspect described above are implemented.

A fifth aspect of the present application provides a computer program product. The computer program product includes a computer program. When the computer program is executed by one or more processors, the steps of the method of the first aspect described above are implemented.

Beneficial effect

As can be seen from the above, this application provides a signature method based on the blockchain network transaction. In the blockchain network transaction message, each legal input corresponds to the previous transaction message, and each legal input The Hash value of the corresponding previous transaction message is the same as the TxOutHash value corresponding to the input. The signature method provided in this application calculates the TxOutHash value corresponding to an input in the transaction message and the previous transaction report corresponding to the input. Whether the hash value of the text is the same to determine whether the input is legal and traverse all inputs of the transaction message. Only sign the transaction message when it is judged that all inputs of the transaction message are legal . As we all know, when a user needs to perform a transfer operation in the blockchain network, the blockchain node where the user is located needs to send a signed transaction message to the blockchain transaction platform. The signature operation is used to indicate that the transaction message is legal For messages, the blockchain trading platform will only perform transfer operations when it receives legitimate messages. Therefore, the technical solution provided in this application can determine whether each transaction input of this transaction is legal, and can check the illegal transaction input embedded in the transaction message to a certain extent, only when it is determined that all transaction inputs are legal Only when the signature operation is executed, that is, the transaction message is determined to be legal, which makes the blockchain transaction platform perform the transfer operation, to a certain extent, it can avoid the illegal embedding of the transaction message when the user transfers the account. Multiple transaction inputs cause the user to pay more processing fees. Therefore, the signature method provided in this application can better protect the user's funds to a certain extent.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only for the application For some embodiments, for those of ordinary skill in the art, without paying creative labor, other drawings may be obtained based on these drawings.

1 is a schematic diagram of an application scenario of a signature method based on a blockchain network transaction provided by this application;

Figure 2 is a schematic diagram of the common transaction message format when conducting transactions based on the blockchain network;

3 is a schematic diagram of an implementation process of a signature method based on a blockchain network transaction provided by Embodiment 1 of the present application;

4 is a schematic diagram of judging whether each transaction input is legal provided by Embodiment 1 of the present application;

5 is a schematic diagram of an implementation process of another signature method based on a blockchain network transaction provided by Embodiment 2 of the present application;

FIG. 6 is a schematic diagram of a calculation process of a handling fee provided in Example 2 of the present application;

7 is a schematic structural diagram of a signature device based on a blockchain network transaction provided by Embodiment 3 of the present application;

8 is a schematic structural diagram of a terminal device according to Embodiment 4 of the present application.

Embodiments of the invention

In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structure and technology are proposed to thoroughly understand the embodiments of the present application. However, those skilled in the art should understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details hindering the description of the present application.

The signature method based on the blockchain network transaction provided in this application is applied to the blockchain nodes in the blockchain network. Figure 1 is a schematic diagram of an application scenario of a signature method based on a blockchain network transaction provided by this application. The application scenario includes a blockchain node 1 and a blockchain transaction platform 2. When the blockchain node 1 initiates a transfer transaction Time, a transaction message 3 will be generated first. Normally, the transaction message 3 includes the accounts of each payee and the size of the transfer amount to each account of the payee. For example, if the blockchain node 1 When transferring money from blockchain node X and blockchain node Y, the transaction message 3 includes the account x of the blockchain node X, the amount transferred to the account x, the account y of the blockchain node Y, and the transfer amount. The blockchain node 1 sends the transaction message 3 to the blockchain transaction platform 2. When the blockchain transaction platform 2 judges that the transaction message 3 is legal, it will assist the blockchain node 1 to complete the transfer transaction.

In addition, for the current blockchain network, when users perform transfer operations in the blockchain network, they usually need to pay a certain processing fee. As shown in Fig. 1, when user A located at blockchain node 1 initiates a transfer operation, it is usually necessary to pay a certain handling fee. The amount of the handling fee is the same as that used by the blockchain node 1 when transferring money. The amount of input of each transaction is related to the amount of output of each transaction. After receiving the transaction message 3 and determining that the transaction message 3 is legal, the above-mentioned blockchain transaction platform 2 will charge a certain fee. For the blockchain network that uses Bitcoin as the transaction currency, this fee will be rewarded to the miners.

For different types of blockchain networks (for example, a blockchain network with Bitcoin as a transaction currency, a blockchain network with Ethereum as a transaction currency, and a blockchain with Litecoin as a transaction currency Internet, etc.), the format of the transaction message is usually different. The following uses Figure 2 to illustrate a more commonly used transaction message format. The blockchain network that uses Bitcoin as the transaction currency adopts the transaction message format shown in FIG. 2.

As shown in Figure 2, the transaction message includes the input field corresponding to each transaction input input and the output field corresponding to each transaction output output. The transaction message also includes the Input-Counter field and the Output-Counter field, Input -The size of the Counter field is used to indicate the number of input fields in the current transaction message, and the size of the Output-Counter field is used to indicate the number of output fields in the current transaction message. In the example shown in FIG. 2, Input -The size of Counter and Output-Counter should be 2.

As shown in FIG. 2, for each input field, there are a send output hash TxOutHash value, a send output index TxOutIndex value, a script length ScriptLen value, and a signature public key Sign & PubKey value. Among them, for each input field, the TxOutHash value is the hash hash value of the previous transaction message of the input corresponding to the input field, as shown in FIG. 2, the TxOutHash value in the first input field should be the transaction input input1 The Hash value of the corresponding previous transaction message I, where the previous transaction message corresponding to each input has an output field, and the output corresponding to the output field is the input transaction message (for example, for transactions Input input1, if the previous transaction message corresponding to input1 is the previous transaction message I, then the previous transaction message I includes an output field, and the transaction output corresponding to the output field is the input1); The TxOutIndex value under an input field is used to indicate which output field in the previous transaction message the corresponding input corresponds to, for example, the previous transaction message corresponding to the transaction input input1 in FIG. 2 is the previous transaction message I, assuming that the previous transaction message I includes two output fields, namely outputA field and outputB field, if the transaction output corresponding to the outputA field is input1, then the output of the previous transaction message I corresponding to the input1 The field is specifically the outputA field. In this transaction message, the TxOutIndex value in the input field corresponding to the input1 can be used to obtain the outputA field corresponding to the previous transaction message I; the ScriptLen under each input field The value is used to indicate the field length of the Sign & PubKey value in the input field; the Sign & Pubkey under each input field is the transaction signature and transaction public key of this transaction.

As shown in Figure 2, for each output field, it includes the amount Value value, script length ScriptLen value, and PKScript value. The Value value under each output field is used to indicate the amount of the corresponding output; the ScriptLen value under each output field is used to indicate the field length of the PKScript value in the output field; the PKScript value under each output field is used to indicate Payee's account public key or account address (the account address is the payee account). If the PKScript under the output field is used to indicate the account public key of the beneficiary, the blockchain trading platform can calculate the account address of the beneficiary from the account public key, so as to conduct the transfer transaction.

The signature method based on the blockchain network transaction provided by this application can be applied to the blockchain network using the transaction message format as shown in FIG. 2, such as the blockchain network with Bitcoin as the currency in. However, those skilled in the art should note that the signature method based on the blockchain network transaction provided by this application does not have to be applied to the blockchain network using the transaction message format as shown in FIG. 2. For details, please refer to this application The description of Embodiment 1 and Embodiment 2.

Example one

The following describes a signature method based on blockchain network transactions provided in Embodiment 1 of the present application. The signature method is applied to the following blockchain network:

The transaction message of the blockchain network includes an input field corresponding to each transaction input input and an output field corresponding to each transaction output output. Each input field includes a TxOutHash value, and each legal input corresponds to Last transaction message, there is an output field corresponding to the previous transaction message corresponding to each legal input, the output corresponding to the output field is the legal input, and the TxOutHash value corresponding to each legal input is the The corresponding hash value of the previous transaction message is the same (the main reason why the input is limited to "legal" here is: when the input field corresponding to the illegal input is embedded in the transaction message, the illegal input is not necessarily Corresponding to the previous transaction message, even if there is a previous transaction message, the TxOutHash value corresponding to the illegal input is not necessarily the same as the Hash value of the previous transaction message).

For the format of the transaction message of the blockchain network defined in the first embodiment of the application, please refer to FIG. 2 and the corresponding text description part. However, those skilled in the art should note that the packet format of the blockchain network to which the signature method provided in Embodiment 1 of the present application does not necessarily include the Input-Counter field, Output-Counter field, nor under the input field. It must contain the ScriptLen value, and the Value and ScriptLen values may not necessarily be under the output field. In addition, since the signature method provided in the first embodiment of the present application needs to sign the transaction message, it can be the same as FIG. 2, and the Sign & PubKey can be included under each input field in the transaction message, but please ask a person skilled in the art Note that the field corresponding to the signature of the transaction message in the embodiment of the present application is not necessarily the same as that in FIG. 2.

The signature method provided in Embodiment 1 of this application is shown in FIG. 3 and includes:

In step S101, in this transaction message, the TxOutHash value under the input field corresponding to each input required for this transaction is obtained. The above transaction message is the transaction message of this transaction;

In this transaction, in order to avoid illegal insertion of multiple inputs in the transaction message and cause the user to pay more processing fees, it is necessary to first perform the steps S101-S105 provided in this application to determine the transaction report Only when all the inputs required in the text are legal, the transaction message is signed.

In order to describe the technical solution described in the first embodiment of the present application in detail, the following description will be made with reference to FIG. 4.

As shown in FIG. 4, the transaction message includes three input fields, namely input field 1, input field 2, and input field 3, in step S101, the input field is read from the transaction message The TxOutHash value in 1, the TxOutHash value in the input field 2, and the TxOutHash value in the input field 3.

In addition, in the embodiment of the present application, the step S101 may include: determining whether the above-mentioned transaction message conforms to a preset message format, and if it matches, then in the transaction message, obtain the transaction request The TxOutHash value under the input field corresponding to each input of. That is, first check whether the transaction message conforms to the preset message format. For example, check whether the transaction message includes the preset fields and whether the length of each field matches the preset length. After the secondary transaction message conforms to the preset message format, let's read the TxOutHash value under each input field.

In step S102, obtain the previous transaction message corresponding to each input required for this transaction;

In the embodiment of the present application, the previous transaction message may be obtained by communicating with a preset server, and this step S102 may include the following steps S1021-S1022:

In step S1021, the identification information of each input required for this transaction is acquired, and the identification information of each input is sent to the preset server to instruct the preset server to perform an operation of searching for the previous transaction message corresponding to each input;

Among them, the identification information of each input may be the input time, the amount of the input, the account number and / or the payment account of the input, etc. For example, for an inputX, the input information of the inputX may include: 2018 10 At 5:10 pm on the 30th of the month, 5 bitcoin, the deposit account is X, and the payment account is Y. After receiving the identification information of each input, the above preset server searches for the previous transaction message corresponding to each input according to the identification information of each input. For example, for the above inputX, the preset server searches for a transaction corresponding to Output outputX transaction message, the outputX is the transaction output at 5:10 pm on October 30, 2018, the amount is 5 bitcoin, the receiving account is X and the sending account is Y, corresponding to the transaction with the outputX The message is the last transaction message of inputX.

In step S1022, receive the previous transaction message corresponding to each input sent by the preset server respectively;

In addition, this step S1022 may include: after sending the identification information of each input to the preset server, determining whether a previous transaction message corresponding to each input returned by the preset server is received within a preset time period; If the previous transaction message corresponding to each input is received, the subsequent step S103 is performed; if the previous transaction message corresponding to each input is not received, it is considered that there is an illegal input in this transaction. Output a reminder message to remind the user that the transaction is illegal, to remind the user whether to sign the transaction message; or, you can output a reminder message to remind the user that the transaction is illegal, and terminate the transaction report The signature operation of the document; or, you can directly terminate the signature, or you can directly terminate the transaction, that is, do not send the transaction message to the blockchain trading platform.

As shown in Figure 4, the previous transaction message corresponding to input1 of this transaction message is the previous transaction message A, the previous transaction message corresponding to input2 is the previous transaction message B, and the previous transaction corresponding to input3 The message is the last transaction message C.

In step S103, calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input;

In the embodiment of the present application, the method for calculating the hash value of the message may use a currently commonly used method, such as the SHA256 algorithm, etc. The present application does not limit the method for calculating the hash value. As shown in FIG. 4, in this step S103, it is necessary to calculate the Hash value of the previous transaction message A (the Hash value of the previous transaction message A is the Hash value corresponding to input1), and the value of the previous transaction message B Hash value (the hash value of the previous transaction message B is the hash value corresponding to input2) and the hash value of the previous transaction message C (the hash value of the previous transaction message C is the hash value corresponding to input3) .

In addition, before this step S103, it may further include a step of determining whether a previous transaction message corresponding to each input required for this transaction is obtained. As described in step S102, if the previous transaction message corresponding to each input is not received, it is considered that there is an illegal input in this transaction, and at this time, a prompt for notifying the user that the transaction is illegal may be output Information to remind the user whether to sign the transaction message; or, can output a prompt message to remind the user that the transaction is illegal, and terminate the signing operation of the transaction message; or, you can directly terminate the transaction message Signature; or, you can directly terminate the transaction, that is, do not send the transaction message to the blockchain trading platform. Correspondingly, this step S103 is specifically: if the previous transaction message corresponding to each input required for this transaction is obtained, then the hash hash value of each previous transaction message is calculated to obtain the hash corresponding to each input value.

In addition, this step S103 may also include:

Determine whether the message format of each previous transaction message conforms to the preset message format;

If it conforms to the preset message format, the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.

Since the embodiment of the present application needs to sign the transaction message, the transaction message may include the Sign & PubKey shown in FIG. 2 in this case. In this case, the step S103 may also include: After the previous transaction message, determine whether each previous transaction message is a legal message based on the signature value and public key (can be Sign & PubKey) in each previous transaction message; when judging each previous transaction message When the messages are all legitimate messages, calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input.

If it is determined that a previous transaction message is illegal (does not conform to the preset message format, or based on the signature value and public key to determine that it is not a legal message), it can be output to prompt the user that the transaction is illegal Prompt message to remind the user whether to sign the transaction message; or, you can output a prompt message to remind the user that the transaction is illegal, and terminate the signature operation of the transaction message; or, you can directly terminate This signature, or, you can also directly terminate this transaction, that is, do not send this transaction message to the blockchain trading platform.

In step S104, it is determined whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

As shown in Figure 4, it is to determine whether the TxOutHash under input field 1 is consistent with the Hash value of the previous transaction message A, the TxOutHash under input field 2 is consistent with the Hash value of the previous transaction message B, and the input field 3 Whether the TxOutHash of the next transaction is the same as the Hash value of the previous transaction message C. If they are the same, each input in the transaction message can be considered legal, otherwise, if it is in each input required for this transaction , The Hash value corresponding to one or more inputs is inconsistent with the TxOutHash value under the corresponding input field (for example, the TxOutHash under input field 2 is not the same as the Hash value of the previous transaction message B), then it can be output for Prompt information to remind the user that the transaction is illegal, to remind the user whether to sign the transaction message; or, you can output a prompt message to remind the user that the transaction is illegal, and terminate the signature of the transaction message Operation; or, you can directly terminate this signature, or you can directly terminate this transaction, that is, do not send this transaction message to the blockchain transaction review.

In step S105, if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message is signed;

As shown in Figure 4, if TxOutHash under input field 1 is consistent with the hash value of the previous transaction message A, TxOutHash under input field 2 is consistent with the hash value of the previous transaction message B, and TxOutHash under input field 3 is consistent If the hash value of the previous transaction message C is the same, it is considered that all inputs of the transaction message are legal, and then sign the transaction message (if the input field of the transaction message as defined in this application example includes Sign & PubKey, you can write the transaction signature and transaction public key of this transaction into the Sign & PubKey in the input field of the transaction message), so that the blockchain trading platform can help complete the transaction.

It can be seen from the above that the technical solution provided in Example 1 of this application can determine whether each transaction input of this transaction is legal, and can check the illegal transaction input embedded in this transaction message to a certain extent, only when judged Only when all transaction inputs are legal, will the signature operation be performed, that is, the transaction message will be deemed legal, which will enable the blockchain transaction platform to perform this transfer operation, which can avoid the user's transfer due to the transaction report to a certain extent. Multiple transaction inputs are illegally embedded in the article, which causes the user to pay more processing fees. Therefore, the signature method provided by this application can better protect the user's funds to a certain extent.

Example 2

The following describes another signature method based on blockchain network transactions provided in Embodiment 2 of this application. The signature method described in Embodiment 2 of this application is applied to the following blockchain network:

The transaction message of the blockchain network includes each input field and each output field, each input field includes a TxOutHash value, and each output field includes an amount Value, which is used to indicate the amount of the corresponding output The TxOutIndex value under each input field is also included under each input field. The TxOutIndex value under each input field is used to indicate the position of the output field corresponding to the corresponding input in the corresponding previous transaction message. For the format of the transaction message of the blockchain network defined in the first embodiment of the application, please refer to FIG. 2 and the corresponding text description part. In addition, as in the first embodiment, since the signature method provided in the second embodiment of the present application needs to sign the transaction message, it can be the same as in FIG. 2, and the transaction message can include Sign & PubKey under each input field. However, those skilled in the art should note that the field corresponding to the signature of the transaction message in the embodiment of the present application is not necessarily the same as FIG. 2.

The signature method described in Embodiment 2 of this application is shown in FIG. 5 and includes:

In step S201, in this transaction message, the TxOutHash value under the input field corresponding to each input required for this transaction is obtained. The above transaction message is the transaction message of this transaction;

In step S202, obtain the previous transaction message corresponding to each input required for this transaction;

In step S203, calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input;

In step S204, it is determined whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

In the second embodiment of the present application, the above steps S201-S204 are executed in the same manner as the steps S101-S104 in the first embodiment. For details, please refer to the description of the first embodiment, which will not be repeated here.

In step S205, if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, then according to the above transaction message, each output field of the above transaction message is obtained Under the Value value, get the amount corresponding to each output in this transaction;

In the second embodiment of the present application, if it is determined through steps S201-S204 that each transaction input of the transaction message is legal, the transaction fee to be paid for this transaction can be further calculated and displayed to facilitate the user Know the transaction fee of this transaction, and enable users to determine whether to continue the transaction based on the transaction fee of this transaction.

In order to more clearly describe the technical solution described in Embodiment 2 of the present application, the following uses FIG. 6 for illustration. As shown in FIG. 6, in this step S205, the value of each transaction output is determined by reading the Value value under each output field in the transaction message, for example, the Value value under output field 1 is used to indicate the transaction The amount of output1 is output, and the Value value under output field 2 is used to indicate the amount of output2 of the transaction.

In step S206, among each input required for the transaction, an input is selected as the target input;

As shown in Figure 6, this transaction requires three inputs, namely input1, input2, and input3. You can select any input from input1, input2, and input3 as the target input, for example, select input1 as the target input.

In step S207, according to the TxOutIndex value under the input field corresponding to the target input, in the previous transaction message corresponding to the target input, search for the target output field, and the output corresponding to the target output field is the target input;

If in step S206, input1 is selected as the target input, in this transaction message, the TxOutIndex value in input field 1 corresponding to input1 is obtained, and the TxOutIndex value in input field 1 is used to indicate that input1 corresponds to the previous time Which output field in the transaction message A, as shown in FIG. 6, can be drawn that the input1 corresponds to the first output field in the previous transaction message A, that is, the output field A1, so that the target output field is output field A1.

In step S208, obtain the Value value under the target output field to obtain the amount of the target input;

As shown in Figure 6, the value of the value in the output field A1 in the previous transaction message A is used as the amount of input1.

In step S209, it is determined whether the selected input has traversed all the inputs required for the transaction, if not, step S210 is executed, and if so, step S211 is executed;

In step S210, remove the selected input, and in each input of this transaction, select an input as the target input, and return to step S207;

In the above step S209, it is determined whether the amount of each input of the transaction message is obtained, if not, then select an input as the target input, and return to step S207;

In step S211, according to the amount of money corresponding to each input in this transaction and the amount of money corresponding to each output in this transaction, the transaction fee for this transaction is determined;

In this step, the method for calculating the handling fee can use the existing technology to calculate the sum of the amount of each input and the sum of the amount of each output, minus the sum of the amount of each input minus the amount of each output The sum of the size and the transaction fee for this transaction.

In step S212, the user is shown the above handling fee so that the user can confirm whether they are willing to continue the transaction;

In step S213, if an instruction indicating that the user is willing to continue the transaction is received, the transaction message of this time is signed.

In the embodiment of the present application, the user is shown the size of the handling fee, and when receiving the instruction of the user willing to continue the transaction, the transaction message is signed; when the instruction of the user refusing to continue the transaction is received, it can be Terminate this signature.

Compared with the first embodiment, the second embodiment of the present application can further inform the user of the transaction fee of the transaction. Therefore, compared with the first embodiment, the second embodiment of the present application can make the user know the size of the transaction fee for each transaction. Can guarantee the user's right to know, and further improve the user experience. In addition, the second embodiment of the present application is the same as the first embodiment, which can check the illegal transaction input embedded in the transaction message to a certain extent, so as to avoid that when the user transfers money, because the transaction message is illegally embedded Input of a transaction, causing the user to pay more processing fees.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Example Three

Embodiment 3 of the present application provides a signature device based on a blockchain network transaction. The above-mentioned blockchain network transaction message includes an input field corresponding to each transaction input and an output field corresponding to each transaction output. , Each input field includes the TxOutHash value of the output hash, each legal input corresponds to the previous transaction message, and the previous transaction message corresponding to each legal input is that there is an output field. The output corresponding to the field is the legal input, and the TxOutHash value corresponding to each legal input is the same as the hash hash value of the previous transaction message corresponding to the legal input;

As shown in FIG. 7, the signature device 300 includes:

The TxOutHash obtaining module 301 is used to obtain the TxOutHash value under the input field corresponding to each input required for this transaction in this transaction message. The above transaction message is the transaction message of this transaction;

The previous message acquisition module 302 is used to obtain the previous transaction message corresponding to each input required for this transaction;

The hash value calculation module 303 is used to calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input;

The judgment module 304 is used to judge whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

The signature module 305 is configured to sign the transaction message if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input.

Optionally, each output field in the transaction message of the above-mentioned blockchain network includes an amount Value value, the above Value value is used to indicate the amount of the corresponding output amount, and each input field also includes a send output index TxOutIndex value , The TxOutIndex value under each input field is used to indicate the position of the output field corresponding to the corresponding input in the corresponding previous transaction message;

Accordingly, the above-mentioned signature module 305 includes:

The output amount determination unit is used to obtain each of the above transaction messages according to the above transaction message if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input Value value under the output field to get the amount of money corresponding to each output in this transaction;

Target input selection unit, used to select any input as the target input among each input required for this transaction;

The target output determining unit is used to search for the target output field in the previous transaction message corresponding to the target input according to the TxOutIndex value under the input field corresponding to the target input, wherein the output corresponding to the target output field is the target input;

The target input amount determination unit is used to obtain the Value value under the target output field to obtain the amount of the target input amount;

The traversal judgment unit is used to judge whether the selected input traverses all inputs required for this transaction;

The target input reselection unit is used to remove the selected input if the selected input has not traversed all the inputs required for this transaction, and select another input as the target input among each input of this transaction;

The handling fee determination unit is used to determine the cost of the selected input according to the amount of each input in this transaction and the amount of each output in this transaction if the selected input traverses all the inputs required for this transaction. Handling fee for each transaction;

The handling fee display unit is used to display the above handling fee to the user so that the user can confirm whether they are willing to continue the transaction;

The signature unit is used to sign the transaction message if an instruction indicating that the user is willing to continue the transaction is received.

Optionally, the above TxOutHash acquisition module 301 includes:

The first format judgment unit is used to judge whether the message format of the above transaction message conforms to the preset message format;

The TxOutHash obtaining unit is used to obtain the TxOutHash value under the input field corresponding to each input required for this transaction in this transaction message if it conforms to the above-mentioned preset message format.

Optionally, the above-mentioned signature device 300 further includes:

The previous message judgment module is used to judge whether the previous transaction message corresponding to each input required for this transaction is obtained;

Accordingly, the above-mentioned hash value calculation module 303 is specifically used for:

If the previous transaction message corresponding to each input required for this transaction is obtained, the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.

Optionally, the above hash value calculation module 303 includes:

The second format judgment unit is used to judge whether the message format of each previous transaction message conforms to the preset message format;

The hash value calculation unit is configured to calculate a hash hash value of each previous transaction message if it conforms to the above-mentioned preset message format to obtain a hash value corresponding to each input.

Optionally, the foregoing previous message acquisition module 302 includes:

The communication sending unit is used to obtain the identification information of each input required for this transaction, and send the identification information of each input to the preset server to instruct the preset server to perform the operation of searching for the previous transaction message corresponding to each input ;

The communication receiving unit is configured to receive the previous transaction message corresponding to each input sent by the preset server.

Optionally, the above-mentioned signature device 300 further includes:

The signature termination module is used to terminate the signature if the Hash value corresponding to one or more inputs is inconsistent with the TxOutHash value under the corresponding input field in each input required for this transaction.

It should be noted that the information interaction and execution process between the above devices / units are based on the same concept as the method embodiments of the present application, and their specific functions and technical effects are brought about. For details, please refer to the method embodiments section. I will not repeat them here.

Example 4

FIG. 8 is a schematic diagram of a terminal device provided in Embodiment 4 of the present application. The terminal device is a blockchain node applied in a blockchain network, where the transaction message of the blockchain network includes various transaction inputs The input field corresponding to the input and the output field corresponding to the output of each transaction respectively, each input field includes the output output hash TxOutHash value, each legal input corresponds to the previous transaction message, each legal The previous transaction message corresponding to input has an output field, and the output corresponding to the output field is the legal input. The TxOutHash value corresponding to each legal input and the hash of the previous transaction message corresponding to the legal input Hash value is the same.

As shown in FIG. 8, the terminal device 4 of this embodiment includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40. When the processor 40 executes the computer program 42, the steps in the above method embodiment are implemented, for example, steps S101 to S105 shown in FIG. 1. Alternatively, when the processor 40 executes the computer program 42, the functions of each module / unit in the above-described device embodiment are realized, for example, the functions of the modules 301 to 305 shown in FIG. 7.

Exemplarily, the computer program 42 may be divided into one or more modules / units. The one or more modules / units are stored in the memory 41 and executed by the processor 40 to complete the application. The one or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 42 in the terminal device 4. For example, the above computer program 42 can be divided into a TxOutHash acquisition module, a previous message acquisition module, a hash value calculation module, a judgment module, and a signature module. The specific functions of each module are as follows:

In this transaction message, obtain the TxOutHash value under the input field corresponding to each input required for this transaction. The above transaction message is the transaction message of this transaction;

Get the previous transaction message corresponding to each input required for this transaction;

Calculate the hash hash value of each previous transaction message to get the hash value corresponding to each input;

Determine whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the above transaction message is signed.

The terminal device 4 may be a computing device such as a desktop computer, a notebook, a palmtop computer and a cloud server. The above terminal device may include, but is not limited to, the processor 40 and the memory 41. A person skilled in the art may understand that FIG. 8 is only an example of the terminal device 4 and does not constitute a limitation on the terminal device 4, and may include more or less components than those illustrated, or a combination of certain components, or different components. For example, the above terminal device may further include an input and output device, a network access device, a bus, and the like.

The so-called processor 40 may be a central processing unit (Central Processing Unit (CPU), can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The above-mentioned memory 41 may be an internal storage unit of the above-mentioned terminal device 4, such as a hard disk or a memory of the terminal device 4. The memory 41 may also be an external storage device of the terminal device 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, and a flash memory provided on the terminal device 4 Card (Flash Card) etc. Further, the memory 41 may include both the internal storage unit of the terminal device 4 and the external storage device. The memory 41 is used to store the computer program and other programs and data required by the terminal device. The above-mentioned memory 41 may also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that, for convenience and conciseness of description, only the above-mentioned division of each functional unit and module is used as an example for illustration. In practical applications, the above-mentioned functions may be allocated by different functional units, Module completion means that the internal structure of the above device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit may use hardware It can also be implemented in the form of software functional units. In addition, the specific names of each functional unit and module are only for the purpose of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not detailed or recorded in an embodiment, you can refer to the related descriptions of other embodiments.

Those of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed device / terminal device and method may be implemented in other ways. For example, the device / terminal device embodiments described above are only schematic. For example, the above-mentioned division of modules or units is only a division of logical functions. In actual implementation, there may be other divisions, such as multiple units or Components can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or software functional unit.

If the above integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program. The above computer program can be stored in a computer-readable storage medium, and the computer program When executed by the processor, the steps of the foregoing method embodiments may be implemented. Wherein, the above-mentioned computer program includes computer program code, and the above-mentioned computer program code may be in the form of source code, object code, executable file or some intermediate form. The above computer readable medium may include: any entity or device capable of carrying the above computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media. It should be noted that the content contained in the above computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in jurisdictions. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media are not Including electrical carrier signals and telecommunications signals.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that they can still perform the foregoing embodiments The recorded technical solutions are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of this application, and should be included in this Within the scope of protection applied for.

Claims (20)

1. A signature method based on a blockchain network transaction, characterized in that the transaction message of the blockchain network includes an input field corresponding to each transaction input input and an output field corresponding to each transaction output output, each Each input field includes the TxOutHash value of the sent output hash. Each legal input corresponds to the previous transaction message. Each legal input corresponds to the previous transaction message. There is an output field, which corresponds to the output field. Is the legal input, and the TxOutHash value corresponding to each legal input is the same as the hash hash value of the previous transaction message corresponding to the legal input;

   The signature method includes:

   In this transaction message, obtain the TxOutHash value under the input field corresponding to each input required for this transaction, which is the transaction message of this transaction;

   Get the previous transaction message corresponding to each input required for this transaction;

   Calculate the hash hash value of each previous transaction message to get the hash value corresponding to each input;

   Determine whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message of this time is signed.
2. The signature method according to claim 1, wherein each output field in the transaction message of the blockchain network includes an amount Value value, and the Value value is used to indicate the amount of the corresponding output amount, Each input field also includes a send output index TxOutIndex value. The TxOutIndex value under each input field is used to indicate the position of the output field corresponding to the corresponding input in the corresponding previous transaction message;

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message is signed, including:

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, then:

   According to the transaction message, obtain the Value value under each output field of the transaction message to obtain the amount of money corresponding to each output in the transaction;

   In each input required for this transaction, select any input as the target input;

   According to the TxOutIndex value under the input field corresponding to the target input, search for the target output field in the previous transaction message corresponding to the target input, where the output corresponding to the target output field is the target input;

   Obtain the Value value under the target output field to obtain the amount of the target input amount;

   Determine whether the selected input traverses all the inputs required for this transaction;

   If the selected input does not traverse all the inputs required for this transaction, then:

   Remove the selected input, in each input of this transaction, select another input as the target input, and return to execute the TxOutIndex value under the input field corresponding to the target input, in front of the corresponding target input In the transaction message, search for the target output field, where the output corresponding to the target output field is the step and subsequent steps of the target input, so as to obtain the amount of money corresponding to each input in this transaction;

   If the selected input traverses all inputs required for this transaction, then:

   Determine the transaction fee for this transaction based on the amount of money corresponding to each input in this transaction and the amount of money corresponding to each output in this transaction;

   Show the user the handling fee so that the user can confirm whether they are willing to continue the transaction;

   If an instruction indicating that the user is willing to continue the transaction is received, the transaction message is signed.
3. The signature method according to claim 1, wherein, in the transaction message, obtaining the TxOutHash value under the input field corresponding to each input required for the transaction includes:

   Determine whether the message format of the transaction message conforms to the preset message format;

   If the preset message format is met, then in this transaction message, the TxOutHash value under the input field corresponding to each input required for this transaction is obtained.
4. The signature method according to claim 1, wherein before the step of calculating the hash value of each previous transaction message to obtain a hash value corresponding to each input, the signature method further comprises:

   Determine whether the previous transaction message corresponding to each input required for this transaction is obtained;

   Correspondingly, the hash hash value of each previous transaction message is calculated to obtain a hash value corresponding to each input, including:

   If the previous transaction message corresponding to each input required for this transaction is obtained, the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.
5. The signature method according to claim 1, wherein the calculating a hash value of each previous transaction message to obtain a hash value corresponding to each input includes:

   Determine whether the message format of each previous transaction message conforms to the preset message format;

   If the preset message format is met, then the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.
6. The signature method according to claim 1, wherein the previous transaction message corresponding to each input required to obtain the transaction includes:

   Obtain the identification information of each input required for this transaction, and send the identification information of each input to a preset server to instruct the preset server to perform the operation of searching for the previous transaction message corresponding to each input;

   Receiving the previous transaction message corresponding to each input sent by the preset server respectively.
7. The signature method according to any one of claims 1 to 6, wherein after the step of determining whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input ,Also includes:

   In each input required for this transaction, if there is a hash value corresponding to one or more inputs that is inconsistent with the TxOutHash value under the corresponding input field, the signature is terminated.
8. A terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the computer program, it is implemented as follows based on a blockchain Network transaction signature method:

   Among them, the transaction message of the blockchain network includes an input field corresponding to each transaction input input and an output field corresponding to each transaction output output, and each input field includes a send output hash TxOutHash value, Each legal input corresponds to a previous transaction message. The previous transaction message corresponding to each legal input has an output field. The output corresponding to the output field is the legal input, and each legal input corresponds to The TxOutHash value is the same as the hash hash value of the previous transaction message corresponding to the legal input;

   The signature method includes:

   In this transaction message, obtain the TxOutHash value under the input field corresponding to each input required for this transaction, which is the transaction message of this transaction;

   Get the previous transaction message corresponding to each input required for this transaction;

   Calculate the hash hash value of each previous transaction message to get the hash value corresponding to each input;

   Determine whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message of this time is signed.
9. The terminal device according to claim 8, wherein each output field in the transaction message of the blockchain network includes an amount Value value, and the Value value is used to indicate the amount of the corresponding output amount, Each input field also includes a send output index TxOutIndex value. The TxOutIndex value under each input field is used to indicate the position of the output field corresponding to the corresponding input in the corresponding previous transaction message;

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message is signed, including:

   If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, then:

   According to the transaction message, obtain the Value value under each output field of the transaction message to obtain the amount of money corresponding to each output in the transaction;

   In each input required for this transaction, select any input as the target input;

   According to the TxOutIndex value under the input field corresponding to the target input, search for the target output field in the previous transaction message corresponding to the target input, where the output corresponding to the target output field is the target input;

   Obtain the Value value under the target output field to obtain the amount of the target input amount;

   Determine whether the selected input traverses all the inputs required for this transaction;

   If the selected input does not traverse all the inputs required for this transaction, then:

   Remove the selected input, and in each input of this transaction, select another input as the target input, and return to execute the TxOutIndex value under the input field corresponding to the target input, before the target input In the transaction message, search for the target output field, where the output corresponding to the target output field is the step and subsequent steps of the target input, so as to obtain the amount of money corresponding to each input in this transaction;

   If the selected input traverses all inputs required for this transaction, then:

   Determine the transaction fee for this transaction based on the amount of money corresponding to each input in this transaction and the amount of money corresponding to each output in this transaction;

   Show the user the handling fee so that the user can confirm whether they are willing to continue the transaction;

   If an instruction indicating that the user is willing to continue the transaction is received, the transaction message is signed.
10. The terminal device according to claim 8, wherein, in the transaction message, obtaining the TxOutHash value under the input field corresponding to each input required for the transaction includes:

    Determine whether the message format of the transaction message conforms to the preset message format;

    If the preset message format is met, then in this transaction message, the TxOutHash value under the input field corresponding to each input required for this transaction is obtained.
11. The terminal device according to claim 8, wherein before the step of calculating the hash value of each previous transaction message to obtain a hash value corresponding to each input, the processor executes When performing a computer program, the following steps are also performed:

    Determine whether the previous transaction message corresponding to each input required for this transaction is obtained;

    Correspondingly, the hash hash value of each previous transaction message is calculated to obtain a hash value corresponding to each input, including:

    If the previous transaction message corresponding to each input required for this transaction is obtained, the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.
12. The terminal device according to claim 8, wherein the calculating a hash value of each previous transaction message to obtain a hash value corresponding to each input includes:

    Determine whether the message format of each previous transaction message conforms to the preset message format;

    If the preset message format is met, then the hash hash value of each previous transaction message is calculated to obtain the hash value corresponding to each input.
13. The terminal device according to claim 8, wherein the previous transaction message corresponding to each input required to obtain the transaction includes:

    Obtain the identification information of each input required for this transaction, and send the identification information of each input to a preset server to instruct the preset server to perform the operation of searching for the previous transaction message corresponding to each input;

    Receiving the previous transaction message corresponding to each input sent by the preset server respectively.
14. The terminal device according to any one of claims 8 to 13, wherein after the step of determining whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input When the processor executes the computer program, it also performs the following steps:

    In each input required for this transaction, if there is a hash value corresponding to one or more inputs that is inconsistent with the TxOutHash value under the corresponding input field, the signature is terminated.
15. A signature device based on a blockchain network transaction, characterized in that the transaction message of the blockchain network includes an input field corresponding to each transaction input input and an output field corresponding to each transaction output output, each Each input field includes the TxOutHash value of the sent output hash. Each legal input corresponds to the previous transaction message. Each legal input corresponds to the previous transaction message. There is an output field, which corresponds to the output field. Is the legal input, and the TxOutHash value corresponding to each legal input is the same as the hash hash value of the previous transaction message corresponding to the legal input;

    The signature device includes:

    The TxOutHash acquisition module is used to obtain the TxOutHash value under the input field corresponding to each input required for this transaction in this transaction message, which is the transaction message of this transaction;

    The previous message acquisition module is used to obtain the previous transaction message corresponding to each input required for this transaction;

    The hash value calculation module is used to calculate the hash value of each previous transaction message to obtain the hash value corresponding to each input;

    The judgment module is used to judge whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

    The signature module is used to sign the transaction message if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input.
16. The signature device according to claim 15, wherein each output field in the transaction message of the blockchain network includes an amount Value value, and the Value value is used to indicate the amount of the corresponding output amount, Each input field also includes a send output index TxOutIndex value. The TxOutIndex value under each input field is used to indicate the position of the output field corresponding to the corresponding input in the corresponding previous transaction message;

    Correspondingly, the signature module includes:

    The output amount determination unit is used to: if the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, then: according to the transaction message, obtain the transaction report The Value value under each output field of the article can get the amount of money corresponding to each output in this transaction;

    Target input selection unit, used to select any input as the target input among each input required for this transaction;

    The target output determining unit is used to search for the target output field in the previous transaction message corresponding to the target input according to the TxOutIndex value under the input field corresponding to the target input, wherein the output corresponding to the target output field Input for the target;

    A target input amount determining unit, used to obtain the Value value under the target output field to obtain the amount of the target input amount;

    The traversal judgment unit is used to judge whether the selected input traverses all inputs required for this transaction;

    The target input reselection unit is used to select all input required for this transaction if the selected input does not traverse all the inputs required for this transaction, and then select one input as the target input among each input of this transaction. And return to execute the TxOutIndex value under the input field corresponding to the target input, search for the target output field in the previous transaction message corresponding to the target input, wherein the output corresponding to the target output field is Describe the steps and subsequent steps of the target input to obtain the amount of money corresponding to each input in this transaction;

    The handling fee determination unit is used to determine if the selected input traverses all inputs required for this transaction: according to the amount of money corresponding to each input in this transaction and the amount of money corresponding to each output in this transaction Handling fee for this transaction;

    The handling fee display unit is used to display the handling fee to the user so that the user can confirm whether they are willing to continue the transaction;

    The signature unit is used to sign the transaction message if an instruction indicating that the user is willing to continue the transaction is received.
17. The signature device according to claim 15, wherein the TxOutHash acquisition module includes:

    A first format judgment unit, used for judging whether the message format of the transaction message conforms to the preset message format;

    The TxOutHash obtaining unit is used to obtain the TxOutHash value under the input field corresponding to each input required for this transaction in this transaction message if it conforms to the preset message format.
18. A computer-readable storage medium storing a computer program, characterized in that, when the computer program is executed by a processor, the following signature method based on a blockchain network transaction is implemented:

    Among them, the transaction message of the blockchain network includes an input field corresponding to each transaction input input and an output field corresponding to each transaction output output, and each input field includes a send output hash TxOutHash value, Each legal input corresponds to a previous transaction message. The previous transaction message corresponding to each legal input has an output field. The output corresponding to the output field is the legal input, and each legal input corresponds to The TxOutHash value is the same as the hash hash value of the previous transaction message corresponding to the legal input;

    The signature method includes:

    In this transaction message, obtain the TxOutHash value under the input field corresponding to each input required for this transaction, which is the transaction message of this transaction;

    Get the previous transaction message corresponding to each input required for this transaction;

    Calculate the hash hash value of each previous transaction message to get the hash value corresponding to each input;

    Determine whether the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input;

    If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message of this time is signed.
19. The computer-readable storage medium of claim 18, wherein each output field in the transaction message of the blockchain network includes an amount Value value, and the Value value is used to indicate the corresponding output The amount of money, each input field also includes the sending output index TxOutIndex value, the TxOutIndex value under each input field is used to indicate the position of the corresponding input field in the corresponding previous transaction message;

    If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, the transaction message is signed, including:

    If the calculated Hash value corresponding to each input is consistent with the TxOutHash value under the input field corresponding to the input, then:

    According to the transaction message, obtain the Value value under each output field of the transaction message to obtain the amount of money corresponding to each output in the transaction;

    In each input required for this transaction, select any input as the target input;

    According to the TxOutIndex value under the input field corresponding to the target input, search for the target output field in the previous transaction message corresponding to the target input, where the output corresponding to the target output field is the target input;

    Obtain the Value value under the target output field to obtain the amount of the target input amount;

    Determine whether the selected input traverses all the inputs required for this transaction;

    If the selected input does not traverse all the inputs required for this transaction, then:

    Remove the selected input, in each input of this transaction, select another input as the target input, and return to execute the TxOutIndex value under the input field corresponding to the target input, in front of the corresponding target input In the transaction message, search for the target output field, where the output corresponding to the target output field is the step and subsequent steps of the target input, so as to obtain the amount of money corresponding to each input in this transaction;

    If the selected input traverses all inputs required for this transaction, then:

    Determine the transaction fee for this transaction based on the amount of money corresponding to each input in this transaction and the amount of money corresponding to each output in this transaction;

    Show the user the handling fee so that the user can confirm whether they are willing to continue the transaction;

    If an instruction indicating that the user is willing to continue the transaction is received, the transaction message is signed.
20. The computer-readable storage medium of claim 18, wherein, in the transaction message, obtaining the TxOutHash value under the input field corresponding to each input required for the transaction includes:

    Determine whether the message format of the transaction message conforms to the preset message format;

    If the preset message format is met, then in this transaction message, the TxOutHash value under the input field corresponding to each input required for this transaction is obtained.