WO2021027337A1 - 基于虚拟立体印章的签章方法、装置和计算机设备 - Google Patents
基于虚拟立体印章的签章方法、装置和计算机设备 Download PDFInfo
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- WO2021027337A1 WO2021027337A1 PCT/CN2020/088044 CN2020088044W WO2021027337A1 WO 2021027337 A1 WO2021027337 A1 WO 2021027337A1 CN 2020088044 W CN2020088044 W CN 2020088044W WO 2021027337 A1 WO2021027337 A1 WO 2021027337A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
Definitions
- This application relates to the computer field, and in particular to a method, device, computer equipment and storage medium based on a virtual three-dimensional seal.
- Seals have been used for a long time and are used to form patterns on documents to indicate identification or signature.
- the traditional method of seal signing is to print the pattern on the main surface of the physical seal on the document, and it is easy to reverse the front shape and pattern of the seal through the seal pattern printed on the document, so as to forge it and pass the common It is difficult to identify the authenticity of the seal pattern by naked eye recognition, so the inventor realized that the safety of the traditional seal signature method cannot be guaranteed.
- the main purpose of this application is to provide a method, device, computer equipment, and storage medium for signing based on a virtual three-dimensional seal, which is suitable for the field of financial technology, and aims to ensure the verification purpose of the seal and improve the seal and signature performance. safety.
- this application proposes a method of signing based on a virtual three-dimensional seal, which is applied to a signing terminal, which has a USBKEY interface for an external USBKEY device, including: receiving a designated virtual three-dimensional seal for a designated file Instruction for signing; collecting the designated file through an image acquisition device preset in the signing terminal to obtain a picture of the designated file, and identifying the picture of the designated file by a preset text recognition method to obtain a designated text; According to a preset text comparison algorithm, calculate the similarity value between the designated text and the preset text, and determine whether the similarity value is greater than the preset similarity threshold; if the similarity value is greater than the preset Similarity threshold, verify whether the USBKEY device has the signature authority through the USBKEY interface; if the USBKEY device has the signature authority, retrieve the pre-stored designated virtual three-dimensional seal, and calculate according to the preset projection direction Obtain a designated projection direction, and project the designated virtual three-
- the present application provides a signing device based on a virtual three-dimensional seal, which is applied to a signing terminal.
- the signing terminal has a USBKEY interface for an external USBKEY device, and includes: an instruction receiving unit for receiving a designated virtual three-dimensional seal for a designated file Instruction for signing; a designated text acquisition unit for acquiring the designated file through an image acquisition device preset in the signing terminal, thereby obtaining a picture of the designated file, and identifying the designated text through a preset text recognition method File picture to obtain the specified text; the similarity threshold judgment unit is used to calculate the similarity value between the specified text and the preset text according to a preset text comparison algorithm, and determine whether the similarity value is greater than the preset The similarity threshold is set; the signature authority verification unit is configured to verify whether the USBKEY device has the signature authority through the USBKEY interface if the similarity value is greater than the preset similarity threshold; the plane projection image acquisition unit , Used to retrieve the pre-stored designated virtual three-dimensional seal if the USBKEY
- the code can obtain the verification result of the blockchain network verifying the plane projection image, wherein the signature terminal is a blockchain node of the blockchain network; the plane projection image printing unit is used to adopt a preset The printing device prints the plane projection image and the anti-counterfeiting two-dimensional code on the designated file.
- the present application provides a computer device, including one or more processors; a memory; one or more computer programs, wherein the one or more computer programs are stored in the memory and configured to be operated by the one or more Executed by multiple processors, and the one or more computer programs are configured to execute a method of signing based on a virtual three-dimensional seal; wherein the method of signing based on a virtual three-dimensional seal is applied to a signing terminal, and the signing
- the chapter terminal has a USBKEY interface for an external USBKEY device, including the following steps: receiving an instruction to sign a designated file with a designated virtual three-dimensional seal; collecting the designated file through the image capture device preset in the signing terminal to obtain the designated file File image, and recognize the specified file image by a preset text recognition method to obtain the specified text; calculate the similarity value between the specified text and the preset text according to the preset text comparison algorithm, and determine the Whether the similarity value is greater than the preset similarity threshold; if the similarity value is greater than the preset similarity
- the present application provides a computer-readable storage medium on which a computer program is stored.
- a method for signing based on a virtual three-dimensional seal is implemented; wherein the virtual three-dimensional seal-based signature
- the method is applied to a signing terminal, which has a USBKEY interface for an external USBKEY device, and includes the following steps: receiving an instruction to sign a specified file with a specified virtual three-dimensional seal; and collecting images preset by the signing terminal
- the device collects the specified file to obtain the specified file picture, and recognizes the specified file picture through a preset text recognition method to obtain the specified text text; calculates the specified text text and the preset text according to the preset text comparison algorithm
- the similarity value of the text and determine whether the similarity value is greater than the preset similarity threshold; if the similarity value is greater than the preset similarity threshold, verify whether the USBKEY device has Signature authority; if the USBKEY device has the authority to sign, the pre-stored designated virtual three-dimensional seal is retrieved, the
- the signature method based on the virtual three-dimensional seal of the present application can improve the security of the seal and the signature.
- Fig. 1 is a schematic flowchart of a method for signing based on a virtual three-dimensional seal according to an embodiment of the application
- FIG. 2 is a schematic block diagram of the structure of a signing device based on a virtual three-dimensional seal according to an embodiment of the application;
- FIG. 3 is a schematic block diagram of the structure of a computer device according to an embodiment of the application.
- this application provides a method of signing based on a virtual three-dimensional seal, which involves the computer field of financial technology.
- a virtual three-dimensional seal which involves the computer field of financial technology.
- An embodiment of the present application provides a method of signing based on a virtual three-dimensional seal.
- the signing terminal has a USBKEY interface for an external USBKEY device, including:
- S2 Collect the designated file by using the image acquisition device preset in the signing terminal to obtain a picture of the designated file, and recognize the picture of the designated file by a preset text recognition method to obtain the designated text;
- USBKEY device If the USBKEY device has the authority to sign, retrieve the pre-stored designated virtual three-dimensional seal, obtain the designated projection direction according to the preset projection direction calculation method, and apply the designated virtual three-dimensional seal from the designated projection direction Perform projection to obtain a flat projection image;
- an instruction for signing a designated file with a designated virtual three-dimensional seal is received.
- the designated document can be any form of document, such as a paper document.
- This application uses a designated virtual three-dimensional seal for signing, so as to avoid the risk of reversing the front shape and pattern of the seal through the seal pattern printed on the document.
- the designated virtual three-dimensional seal can be obtained in any manner, for example, obtained by a preset 3D modeling method, which will not be repeated here.
- the designated file is collected by the image acquisition device preset in the signing terminal to obtain the designated file picture, and the designated file picture is recognized by the preset text recognition method to obtain the designated text text .
- the traditional seal method cannot verify whether a seal should be used.
- a designated file is collected as a designated file picture, and the designated file picture is recognized by a preset text recognition method to obtain the designated text, and then the designated text is used as a basis for subsequent verification of whether the signature is correct.
- the text recognition method is any feasible way, such as recognizing the text shape in the specified file picture, comparing the text shape with a preset text, and using the text with the highest matching degree as the recognition result.
- the similarity value between the designated text and the preset text is calculated according to a preset text comparison algorithm, and it is determined whether the similarity value is greater than a preset similarity threshold.
- the preset text comparison algorithm can be any algorithm, such as WMD algorithm (word move's distance), simhash algorithm, and algorithm based on cosine similarity.
- WMD algorithm word move's distance
- simhash algorithm simhash algorithm
- step S4 if the similarity value is greater than the preset similarity threshold, verify whether the USBKEY device has the signature authority through the USBKEY interface.
- the USBKEY device is a device used to verify the user's identity and authority. This application makes the authority verification faster through the reserved USBKEY interface and improves security at the same time.
- the verification process includes: receiving the ciphertext and verification plaintext sent by the USBKEY device through the USBKEY interface, wherein the ciphertext is formed by encrypting the verification plaintext by a private key prestored in the USBKEY device; Set the public key to decrypt the ciphertext to obtain the decrypted plaintext; determine whether the decrypted plaintext is the same as the verification plaintext; if the decrypted plaintext is the same as the verification plaintext, it is determined that the USBKEY device has a signature Permissions.
- the pre-stored designated virtual three-dimensional seal is retrieved, and the designated projection direction is acquired according to the preset projection direction calculation method, and the designated projection direction
- the specified virtual three-dimensional seal is projected to obtain a plane projection image. Since the projection results of the pre-stored designated virtual three-dimensional seal are different in different projection directions, the designated virtual three-dimensional seal cannot be obtained if only a few plane projection images are reversed, thereby ensuring the safety of the designated virtual three-dimensional seal.
- the plane projection image is related to the designated virtual three-dimensional seal and can be used as the current signature.
- the projection direction used for the next signature is not necessarily the same as the projection direction of this signature, so the plane projection image of this signature cannot be used for the next signature, thus preventing the embezzlement of the plane projection image for the next signature Possibility of forged signature.
- the plane projection image is recorded in a pre-built blockchain network, and an anti-counterfeiting QR code is generated at the same time, wherein the blockchain network verification office can be obtained by scanning the anti-counterfeiting QR code.
- the verification result of the plane projection image wherein the signature terminal is a blockchain node of the blockchain network.
- the plane projection image is recorded into the blockchain, and the anti-counterfeiting QR code is used to provide a verification method to solve the problem that the traditional technology cannot identify the seal with the naked eye.
- the anti-counterfeiting two-dimensional code chain provides a verification interface for verifying the planar projection image to the blockchain network, and can display the verification result.
- a preset printing device is used to print the plane projection image and the anti-counterfeiting two-dimensional code on the designated file.
- the plane projection image is capable of signing the task, so the plane projection image is printed on the designated document and the anti-counterfeiting two-dimensional code is printed to provide signature verification.
- a preset printing device is also used to print the front side of the designated virtual three-dimensional seal on the designated file, wherein the designated virtual three-dimensional seal The front side of the is printed with a designated pattern, so as to provide the information in the traditional seal pattern (for example, the pattern including the name of the signature body, etc.) for the naked eye to read.
- the step S3 of calculating the similarity value between the designated text and the preset text based on a preset text comparison algorithm, and determining whether the similarity value is greater than a preset similarity threshold include:
- the similarity algorithm is calculated according to the cosine similarity between the designated text and the preset text, so as to reflect the similarity between the designated text and the preset text. When the value of similarity is closer to 1, the more similar is; the closer to 0, the less similar.
- the step S4 of verifying whether the USBKEY device has the signing authority through the USBKEY interface includes:
- S402 Use a preset public key to decrypt the ciphertext to obtain a decrypted plaintext
- USBKEY device has the signature authority through the USBKEY interface.
- the USBKEY device prestores the user's certificate and the user's public-private key pair, and the subject of this application has the public key in the public-private key pair. Therefore, only the ciphertext encrypted by the private key can be decrypted with the corresponding public key to be the same as the verified plaintext. Accordingly, the ciphertext and verification plaintext sent by the USBKEY device are received through the USBKEY interface, and the ciphertext is decrypted with a preset public key to obtain the decrypted plaintext, if the decrypted plaintext is the same as the verification plaintext , It is determined that the USBKEY device has the signature authority. And because the USBKEY belongs to an external device, its private key is prohibited from flowing out of the USBKEY device, and its verification method is quick and safe, thus improving the security of the signature of this application.
- the pre-stored designated virtual three-dimensional seal is retrieved, and the designated projection direction is obtained according to the preset projection direction calculation method, and the designated projection direction
- the step S5 of projecting the designated virtual three-dimensional seal to obtain a plane projection image includes:
- S503 Record the direction in which the designated coordinate point points to the origin as a designated projection direction, and project the designated virtual three-dimensional seal from the designated projection direction to obtain a plane projection image.
- the designated virtual three-dimensional seal is projected from the designated projection direction, thereby obtaining a plane projection image.
- This application uses the preset correspondence relationship between time and space coordinate points to obtain the designated coordinate point corresponding to the current time, and the direction of the designated coordinate point to the origin is recorded as the designated projection direction, and from the designated projection
- the designated virtual three-dimensional seal is projected in the direction to obtain a planar projection image.
- the planar projection image is combined with the current time, that is, the planar projection image can reflect the current time, thereby ensuring the security of the signature (different Time plane projection image, so it is impossible to reverse the plane projection image or specify the virtual three-dimensional seal.
- the front side of the designated virtual three-dimensional seal can be any one of the preset surfaces of the designated virtual three-dimensional seal, preferably a side of the designated virtual three-dimensional seal with a specific pattern, wherein the specific pattern is, for example, the same as the physical seal.
- the embossed text with the same signature or corresponding to the signature of the physical seal (the signature of the physical seal is in negative).
- the obtaining of the current time, taking the front center of the specified virtual three-dimensional seal as the origin, and obtaining the specified coordinate point corresponding to the current time according to the preset correspondence relationship between time and space coordinate points S502 include:
- the designated coordinate point corresponding to the current time is obtained according to the preset correspondence between time and space coordinate points.
- the x-axis, y-axis, and z-axis are related to the month, day, and hour respectively, that is, the plane projection image is related to the month, day, and hour, so one of the month, day, and hour can be quickly derived from the plane projection image Or more.
- the step S6 of recording the planar projection image into a pre-built blockchain network includes:
- the consensus mechanism adopted in this embodiment can be any consensus mechanism, and the share authorization certification mechanism is preferred.
- the share authorization proof mechanism means that all blockchain nodes vote for multiple entrusted blockchain nodes, so that multiple entrusted blockchain nodes will judge whether to record data in the blockchain on behalf of all blockchain nodes. , So as to avoid the shortcomings of slow operation of the blockchain when there are too many blockchain nodes.
- this embodiment also uses the The node sends connection confirmation information, and records the audit blockchain node that replies to the connection confirmation information as the final audit blockchain node method to determine the audit blockchain nodes that can be audited, and record it as the final audit blockchain Nodes, thereby not only reducing unnecessary network overhead, but also ensuring the accuracy of subsequent judgments (excluding nodes that cannot participate in the audit).
- the preset blockchain recording condition is, for example, that the audit result is that the number of final audited blockchain nodes passed is greater than a preset threshold.
- the signing terminal has a plurality of virtual three-dimensional seals pre-stored, and if the USBKEY device has the signing authority, the pre-stored designated virtual three-dimensional seal is retrieved, and the calculation method is based on the preset projection direction
- the step S5 of obtaining a designated projection direction and projecting the designated virtual three-dimensional seal from the designated projection direction to obtain a plane projection image includes:
- USBKEY device If the USBKEY device has the authority to sign, retrieve a plurality of pre-stored virtual three-dimensional seals, obtain a designated projection direction according to a preset projection direction calculation method, and apply the designated projection direction to the multiple virtual three-dimensional seals. Perform projection to obtain multiple temporary plane projection images;
- S512 Calculate the perimeters of multiple temporary plane projection images respectively to obtain multiple perimeter values
- multiple virtual three-dimensional seals are pre-stored, and multiple virtual three-dimensional seals are projected using a designated projection direction to obtain multiple temporary plane projection images; the perimeters of multiple temporary plane projection images are calculated separately to obtain multiple circumferences. Long value; taking the temporary plane projection image corresponding to the largest value among the plurality of perimeter values as the final plane projection image. It can be seen that the value of the circumference of the final planar projection image is the largest. Generally speaking, the complexity of the planar image has a positive correlation with the circumference. Therefore, the final planar projection image obtained by this application is the most complicated planar image.
- the preset projection direction calculation method may be any method, for example, the method adopted in the foregoing embodiment.
- the method of signing based on a virtual three-dimensional seal of the present application receives an instruction to use a designated virtual three-dimensional seal to sign a designated document; collects the designated document through an image capture device preset in the signing terminal, and recognizes the designated text Text; calculate the similarity value between the specified text text and the preset text text; if the similarity value is greater than the preset similarity threshold, verify whether the USBKEY device has the authority to sign; if the USBKEY device has Signature authority, project the designated virtual three-dimensional seal from the designated projection direction to obtain a plane projection image; record the plane projection image into a pre-built blockchain network, and generate an anti-counterfeiting QR code ; Use a preset printing device to print the plane projection image and the anti-counterfeiting two-dimensional code on the designated file. Thereby improving the safety of seals and signatures.
- an embodiment of the present application provides a signing device based on a virtual three-dimensional seal, including:
- the instruction receiving unit 10 is configured to receive an instruction for signing a designated file with a designated virtual three-dimensional seal
- the specified text acquisition unit 20 is configured to collect the specified file through the image acquisition device preset in the signing terminal to obtain the specified file picture, and recognize the specified file picture through the preset text recognition method to obtain the specified Text text
- the similarity threshold judgment unit 30 is configured to calculate the similarity value between the designated text and the preset text according to a preset text comparison algorithm, and determine whether the similarity value is greater than a preset similarity threshold;
- the signature authority verification unit 40 is configured to verify whether the USBKEY device has the signature authority through the USBKEY interface if the similarity value is greater than a preset similarity threshold;
- the plane projection image acquisition unit 50 is configured to, if the USBKEY device has the signature authority, retrieve the pre-stored designated virtual three-dimensional seal, and acquire the designated projection direction according to the preset projection direction calculation method, and obtain the designated projection direction from the designated projection direction Projecting the designated virtual three-dimensional seal to obtain a plane projection image;
- the plane projection image recording unit 60 is used to record the plane projection image into a pre-built blockchain network and generate an anti-counterfeiting QR code, wherein the blockchain network can be obtained by scanning the anti-counterfeiting QR code Verifying the verification result of the flat projection image, wherein the signature terminal is a blockchain node of the blockchain network;
- the plane projection image printing unit 70 is configured to print the plane projection image and the anti-counterfeiting two-dimensional code on the designated file using a preset printing device.
- the similarity threshold judgment unit 30 includes:
- the similarity threshold judgment subunit is used to adopt the formula:
- the signature authority verification unit 40 includes:
- the ciphertext receiving subunit is configured to receive the ciphertext and verification plaintext sent by the USBKEY device through the USBKEY interface if the similarity value is greater than a preset similarity threshold, wherein the ciphertext passes the USBKEY
- the private key pre-stored in the device is formed by encrypting the verification plain text
- the decryption subunit is used to decrypt the ciphertext using a preset public key to obtain the decrypted plaintext;
- the verification plaintext judgment subunit is used to judge whether the decrypted plaintext is the same as the verified plaintext
- It has a signature authority determination subunit, which is used to determine that the USBKEY device has the signature authority if the decrypted plaintext is the same as the verified plaintext.
- the plane projection image acquisition unit 50 includes:
- the designated virtual three-dimensional seal retrieval subunit is used to retrieve the pre-stored designated virtual three-dimensional seal if the USBKEY device has the signature authority;
- the designated coordinate point acquiring subunit is used to acquire the current time, using the front center of the designated virtual three-dimensional seal as the origin, and acquiring the designated coordinate point corresponding to the current time according to the preset correspondence between time and space coordinate points;
- the plane projection image acquisition subunit is used to record the direction from the designated coordinate point to the origin as a designated projection direction, and project the designated virtual three-dimensional seal from the designated projection direction to obtain a plane projection image.
- the designated coordinate point acquiring subunit includes:
- the module for establishing a plane rectangular coordinate system is used to take the center of the front face of the designated virtual three-dimensional seal as the origin, the line connecting the origin and the preset point in the front face as the x-axis, and the front face and the x-axis A straight line that is vertical and passes through the origin is taken as the y-axis, and the perpendicular to the front that passes through the origin is the z-axis, thereby establishing a planar rectangular coordinate system;
- the specified coordinate point acquisition module is used to acquire the current time and according to the formula:
- the planar projection image recording unit 60 includes:
- the audit block chain node obtaining subunit is used to obtain multiple audit block chain nodes selected according to the preset consensus mechanism of the block chain network in the block chain network;
- connection confirmation information sending subunit is configured to send connection confirmation information to all the audit blockchain nodes, and record the audit blockchain node that replies to the connection confirmation information as the final audit blockchain node;
- the plane projection image sending subunit is used to send the plane projection image to the final audit blockchain node, and receive the audit result of the final audit blockchain node, and determine whether the audit result meets a preset The blockchain recording conditions;
- the flat projection image recording subunit is configured to record the flat projection image into the blockchain network if the audit result meets the preset blockchain recording conditions.
- the signature terminal has a plurality of virtual three-dimensional seals pre-stored
- the plane projection image acquisition unit 50 includes:
- the temporary plane projection image acquisition subunit is used to retrieve a plurality of pre-stored virtual three-dimensional seals if the USBKEY device has the signature authority, and acquire the designated projection direction according to the preset projection direction calculation method, and obtain the designated projection direction from the designated Project multiple virtual three-dimensional seals in the projection direction to obtain multiple temporary plane projection images;
- the perimeter calculation subunit is used to calculate the perimeters of multiple temporary plane projection images to obtain multiple perimeter values
- the final planar projection image acquisition subunit is configured to use the temporary planar projection image corresponding to the largest value among the plurality of perimeter values as the final planar projection image.
- an embodiment of the present application also provides a computer device, including one or more processors; a memory; one or more computer programs, wherein the one or more computer programs are stored in the memory and Is configured to be executed by the one or more processors, and the one or more computer programs are configured to execute a signature method based on a virtual three-dimensional seal.
- the computer device can be a server, and its internal structure can be as shown in the figure.
- the computer equipment includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the computer designed processor is used to provide calculation and control capabilities.
- the memory of the computer device includes a non-volatile storage medium and an internal memory.
- the non-volatile storage medium stores an operating system, a computer program, and a database.
- the memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
- the database of the computer equipment is used to store data used in the signature method based on the virtual three-dimensional seal.
- the network interface of the computer device is used to communicate with an external terminal through a network connection.
- An embodiment of the present application also provides a computer-readable storage medium, which is readable as a volatile storage medium or a non-volatile storage medium, on which a computer program is stored, and when the computer program is executed by a processor A method of signing based on a virtual three-dimensional seal is implemented; wherein the steps included in the method of signing based on a virtual three-dimensional seal correspond to the steps of performing the method of signing based on the virtual three-dimensional seal of the foregoing embodiment respectively. Repeat it again.
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Abstract
Description
Claims (20)
- 一种基于虚拟立体印章的签章方法,其中,应用于签章终端,所述签章终端具有外接USBKEY设备的USBKEY接口,包括:接收对指定文件采用指定虚拟立体印章进行签章的指令;通过所述签章终端预设的图像采集设备采集所述指定文件,从而获得指定文件图片,并通过预设的文本识别方法识别所述指定文件图片,得到指定文字文本;根据预设的文本比较算法,计算所述指定文字文本与预设文字文本的相似度值,并判断所述相似度值是否大于预设的相似度阈值;若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限;若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像;将所述平面投影图像记录入预先构建的区块链网络中,同时生成防伪二维码,其中通过扫描所述防伪二维码能够获取所述区块链网络验证所述平面投影图像的验证结果,其中所述签章终端是所述区块链网络的一个区块链节点;采用预设的打印设备在所述指定文件上打印所述平面投影图像与所述防伪二维码。
- 根据权利要求1所述的基于虚拟立体印章的签章方法,其中,所述若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限的步骤,包括:若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口接收所述USBKEY设备发送的密文与验证明文,其中所述密文通过所述USBKEY设备中预存的私钥对所述验证明文加密而成;采用预设的公钥对所述密文进行解密,得到解密明文;判断所述解密明文与所述验证明文是否相同;若所述解密明文与所述验证明文相同,则判定所述USBKEY设备具有签章权限。
- 根据权利要求1所述的基于虚拟立体印章的签章方法,其中,所述若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像的步骤,包括:若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章;获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点;将所述指定坐标点指向所述原点的方向记为指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像。
- 根据权利要求4所述的基于虚拟立体印章的签章方法,其中,所述获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点的步骤,包括:以所述指定虚拟立体印章的正面中心为原点,所述原点与所述正面中的预设点的连线作为x轴,所述正面中与所述x轴垂直的且过原点的直线作为y轴,所述正面的过所述原点的垂线为z轴,从而建立平面直角坐标系;获取当前时间,并根据公式:x=k1×M+a1;y=k2×D+a2;z=k3×T+a3,获取指定坐标点(x,y,z),其中当前时间为当前年份的第M月中的第D天中的第T个小时,其中k1、k2、k3、a1、a2和a3均为预设的参数。
- 根据权利要求1所述的基于虚拟立体印章的签章方法,其中,所述将所述平面投影图像记录入预先构建的区块链网络中的步骤,包括:在所述区块链网络中获取根据所述区块链网络的预设共识机制投选出的多个审核区块链节点;向所有所述审核区块链节点发送连接确认信息,并将回复所述连接确认信息的审核区块链节点记为最终审核区块链节点;将所述平面投影图像发送给所述最终审核区块链节点,并接收所述最终审核区块链节点的审核结果,并判断所述审核结果是否满足预设的区块链记录条件;若所述审核结果满足预设的区块链记录条件,则将所述平面投影图像记录入所述区块链网络中。
- 根据权利要求1所述的基于虚拟立体印章的签章方法,其中,所述签章终端预存有多个虚拟立体印章,所述若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像的步骤,包括:若所述USBKEY设备具有签章权限,则调取预存的多个虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对多 个虚拟立体印章进行投影,从而得到多个暂时平面投影图像;分别计算多个暂时平面投影图像的周长,从而得到多个周长数值;将所述多个周长数值中最大的值对应的暂时平面投影图像作为最终平面投影图像。
- 一种基于虚拟立体印章的签章装置,其中,应用于签章终端,所述签章终端具有外接USBKEY设备的USBKEY接口,包括:指令接收单元,用于接收对指定文件采用指定虚拟立体印章进行签章的指令;指定文字文本获取单元,用于通过所述签章终端预设的图像采集设备采集所述指定文件,从而获得指定文件图片,并通过预设的文本识别方法识别所述指定文件图片,得到指定文字文本;相似度阈值判断单元,用于根据预设的文本比较算法,计算所述指定文字文本与预设文字文本的相似度值,并判断所述相似度值是否大于预设的相似度阈值;签章权限验证单元,用于若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限;平面投影图像获取单元,用于若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像;平面投影图像记录单元,用于将所述平面投影图像记录入预先构建的区块链网络中,同时生成防伪二维码,其中通过扫描所述防伪二维码能够获取所述区块链网络验证所述平面投影图像的验证结果,其中所述签章终端是所述区块链网络的一个区块链节点;平面投影图像打印单元,用于采用预设的打印设备在所述指定文件上打印所述平面投影图像与所述防伪二维码。
- 一种计算机设备,其中,包括:一个或多个处理器;存储器;一个或多个计算机程序,其中所述一个或多个计算机程序被存储在所述存储器中并被配置为由所述一个或多个处理器执行,所述一个或多个计算机程序配置用于执行一种基于虚拟立体印章的签章方法;其中,所述基于虚拟立体印章的签章方法应用于签章终端,所述签章终端具有外接USBKEY设备的USBKEY接口,包括以下步骤:接收对指定文件采用指定虚拟立体印章进行签章的指令;通过所述签章终端预设的图像采集设备采集所述指定文件,从而获得指定文件图片,并通过预设的文本识别方法识别所述指定文件图片,得到指定文字文本;根据预设的文本比较算法,计算所述指定文字文本与预设文字文本的相似 度值,并判断所述相似度值是否大于预设的相似度阈值;若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限;若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像;将所述平面投影图像记录入预先构建的区块链网络中,同时生成防伪二维码,其中通过扫描所述防伪二维码能够获取所述区块链网络验证所述平面投影图像的验证结果,其中所述签章终端是所述区块链网络的一个区块链节点;采用预设的打印设备在所述指定文件上打印所述平面投影图像与所述防伪二维码。
- 根据权利要求9所述的计算机设备,其中,所述若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限的步骤,包括:若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口接收所述USBKEY设备发送的密文与验证明文,其中所述密文通过所述USBKEY设备中预存的私钥对所述验证明文加密而成;采用预设的公钥对所述密文进行解密,得到解密明文;判断所述解密明文与所述验证明文是否相同;若所述解密明文与所述验证明文相同,则判定所述USBKEY设备具有签章权限。
- 根据权利要求9所述的计算机设备,其中,所述若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像的步骤,包括:若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章;获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点;将所述指定坐标点指向所述原点的方向记为指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像。
- 根据权利要求12所述的计算机设备,其中,所述获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点的步骤,包括:以所述指定虚拟立体印章的正面中心为原点,所述原点与所述正面中的预设点的连线作为x轴,所述正面中与所述x轴垂直的且过原点的直线作为y轴,所述正面的过所述原点的垂线为z轴,从而建立平面直角坐标系;获取当前时间,并根据公式:x=k1×M+a1;y=k2×D+a2;z=k3×T+a3,获取指定坐标点(x,y,z),其中当前时间为当前年份的第M月中的第D天中的第T个小时,其中k1、k2、k3、a1、a2和a3均为预设的参数。
- 根据权利要求9所述的计算机设备,其中,所述将所述平面投影图像记录入预先构建的区块链网络中的步骤,包括:在所述区块链网络中获取根据所述区块链网络的预设共识机制投选出的多个审核区块链节点;向所有所述审核区块链节点发送连接确认信息,并将回复所述连接确认信息的审核区块链节点记为最终审核区块链节点;将所述平面投影图像发送给所述最终审核区块链节点,并接收所述最终审核区块链节点的审核结果,并判断所述审核结果是否满足预设的区块链记录条件;若所述审核结果满足预设的区块链记录条件,则将所述平面投影图像记录入所述区块链网络中。
- 根据权利要求9所述的计算机设备,其中,所述签章终端预存有多个虚拟立体印章,所述若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像的步骤,包括:若所述USBKEY设备具有签章权限,则调取预存的多个虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对多个虚拟立体印章进行投影,从而得到多个暂时平面投影图像;分别计算多个暂时平面投影图像的周长,从而得到多个周长数值;将所述多个周长数值中最大的值对应的暂时平面投影图像作为最终平面投影图像。
- 一种计算机可读存储介质,其中,其上存储有计算机程序,所述计算机程序被处理器执行时实现一种基于虚拟立体印章的签章方法;其中,所述基于虚拟立体印章的签章方法应用于签章终端,所述签章终端具有外接USBKEY设备的USBKEY接口,包括以下步骤:接收对指定文件采用指定虚拟立体印章进行签章的指令;通过所述签章终端预设的图像采集设备采集所述指定文件,从而获得指定文件图片,并通过预设的文本识别方法识别所述指定文件图片,得到指定文字文本;根据预设的文本比较算法,计算所述指定文字文本与预设文字文本的相似度值,并判断所述相似度值是否大于预设的相似度阈值;若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限;若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像;将所述平面投影图像记录入预先构建的区块链网络中,同时生成防伪二维码,其中通过扫描所述防伪二维码能够获取所述区块链网络验证所述平面投影图像的验证结果,其中所述签章终端是所述区块链网络的一个区块链节点;采用预设的打印设备在所述指定文件上打印所述平面投影图像与所述防伪二维码。
- 根据权利要求16所述的计算机可读存储介质,其中,所述若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口验证所述USBKEY设备是否具有签章权限的步骤,包括:若所述相似度值大于预设的相似度阈值,则通过所述USBKEY接口接收所述USBKEY设备发送的密文与验证明文,其中所述密文通过所述USBKEY设备中预存的私钥对所述验证明文加密而成;采用预设的公钥对所述密文进行解密,得到解密明文;判断所述解密明文与所述验证明文是否相同;若所述解密明文与所述验证明文相同,则判定所述USBKEY设备具有签章权限。
- 根据权利要求16所述的计算机可读存储介质,其中,所述若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章,并根据预设的投影方向计算方法获取指定投影方向,并从所述指定投影方向对所述指定虚拟 立体印章进行投影,从而得到平面投影图像的步骤,包括:若所述USBKEY设备具有签章权限,则调取预存的指定虚拟立体印章;获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点;将所述指定坐标点指向所述原点的方向记为指定投影方向,并从所述指定投影方向对所述指定虚拟立体印章进行投影,从而得到平面投影图像。
- 根据权利要求19所述的计算机可读存储介质,其中,所述获取当前时间,以所述指定虚拟立体印章的正面中心为原点,根据预设的时间与空间坐标点的对应关系,获取与当前时间对应的指定坐标点的步骤,包括:以所述指定虚拟立体印章的正面中心为原点,所述原点与所述正面中的预设点的连线作为x轴,所述正面中与所述x轴垂直的且过原点的直线作为y轴,所述正面的过所述原点的垂线为z轴,从而建立平面直角坐标系;获取当前时间,并根据公式:x=k1×M+a1;y=k2×D+a2;z=k3×T+a3,获取指定坐标点(x,y,z),其中当前时间为当前年份的第M月中的第D天中的第T个小时,其中k1、k2、k3、a1、a2和a3均为预设的参数。
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| CN114021099A (zh) * | 2022-01-06 | 2022-02-08 | 北科信链(武汉)数字科技有限公司 | 一种基于指纹与印章的验证方法及装置 |
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| CN110598823B (zh) * | 2019-08-14 | 2022-11-04 | 深圳壹账通智能科技有限公司 | 基于虚拟立体印章的签章方法、装置和计算机设备 |
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| CN111694796B (zh) * | 2020-05-29 | 2024-09-10 | 平安银行股份有限公司 | 识别扫描文件信息的方法、装置、计算机设备和存储介质 |
| CN114077641B (zh) * | 2020-08-14 | 2024-09-10 | 支付宝(杭州)信息技术有限公司 | 基于区块链的盖章处理方法和装置 |
| CN113448924A (zh) * | 2021-06-24 | 2021-09-28 | 未鲲(上海)科技服务有限公司 | 基于区块链的文件展示方法、装置、设备及存储介质 |
| CN115204972A (zh) * | 2022-07-04 | 2022-10-18 | 青岛酷特智能股份有限公司 | 一种基于量体师共享的量体订单处理方法、设备及介质 |
| CN116994269A (zh) * | 2023-05-11 | 2023-11-03 | 达而观信息科技(上海)有限公司 | 一种图像文档中印章相似度比对方法及对比系统 |
| CN118269496A (zh) * | 2024-05-30 | 2024-07-02 | 中博信息技术研究院有限公司 | 一种基于虹膜识别的防盗用印系统 |
| CN119785440B (zh) * | 2025-03-11 | 2025-06-13 | 北京安证通信息科技股份有限公司 | 一种签章电子化用签章信息采集装置 |
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| CN114021099B (zh) * | 2022-01-06 | 2022-03-25 | 北科信链(武汉)数字科技有限公司 | 一种基于指纹与印章的验证方法及装置 |
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| CN110598823A (zh) | 2019-12-20 |
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