594 results about "Electronic signature" patented technology

The invention discloses an electronic signature security management method and system based on a block chain, and relates to the technical field of information security, and the method comprises the steps: generating a public key and a private key of a user through a quantum resistant encryption algorithm, binding the public key with the identity of the user, recording the public key and the identity of the user on the block chain, and storing the private key through HSM hardware encryption equipment; the method comprises the following steps: standardizing a to-be-signed document to generate a standard document, and calculating the standard document through a Hash algorithm to obtain a document Hash value; the signer signs the document hash value by using a private key and a CRYSTALS-Dillitium signature algorithm, generates an electronic signature and a signature proof, associates the electronic signature, the signature proof, the document hash value and a timestamp with a public key, and records the associated information on the block chain; and the standardized processing rule is written into the smart contract, and after a verifier submits a verification request, document hash value comparison, signature effective state check and signature proof verification are carried out through calling chain data by the smart contract.

A method for packaging digital evidence for long term validation comprises forming a package of a digital document (10), an electronic signature (12) for the document (10), together with evidence (16) of the authority of the signature in the document and a time stamp (20) indicating when the document was digitally signed. All of the pieces form parts of the packaged evidence.

The invention discloses an enterprise registration archive sharing and shareholder right-of-knowledge guarantee system based on full-chain data tracing and auditing, and relates to the technical field of archive management. The system comprises an identity authentication module, an archive storage management module, an archive sharing module, a shareholder right of knowledge guarantee module, a comprehensive statistics module and a system security module. According to the system, full-chain tracing of archive data is realized by utilizing a block chain technology, all change operations are completely recorded, and the transparency of archive management is remarkably improved; the security and authenticity of the shared archive are ensured through electronic signature, watermark and two-dimensional code anti-counterfeiting technologies; shareholders can track stock equity states and change records of enterprises in real time and know enterprise change information in time through a dynamic notification mechanism, so that the right of knowing of the shareholders is comprehensively guaranteed; through dynamic encryption, authority management and abnormal behavior detection, the security of file storage and access is ensured, and data leakage and tampering are effectively prevented.

The invention discloses a food production traceability management system based on a block chain, which belongs to the field of food management systems, and is characterized in that a unique identifier ID of an inheritor is generated based on an SHA-256 Hash algorithm, a Merkle tree root Hash value of food production data is dynamically associated, a non-tampering digital identity file is constructed, a data island of traditional decentralized management is broken through, and the traceability of food production is improved. According to the technical scheme, full-chain credible association between the non-abandoned technology and the production process is ensured, validity of an electronic signature is automatically verified by means of an intelligent contract, data tampering or identity failure risks are recognized in real time by comparing a public key decryption result with a signature hash value, JSON format alarms are pushed by means of Apache Kafka message middleware, cross-department collaborative response is achieved, and the security and reliability of the electronic signature are improved. The risk prevention and control efficiency is remarkably improved, encryption signature is performed in combination with an ECDSA key pair of a hardware security module, strong binding of an inheritor identifier, a production batch and equipment is ensured, identity fraudulent use or qualification counterfeiting is prevented, and traceability of the whole life cycle of non-abandoned skill inheritance is achieved.

The invention discloses an electronic signature handwriting identification method based on a VILT multi-mode model. The method comprises the following steps: 1) collecting electronic signature information of a party; 2) preprocessing the collected information; 3) taking the preprocessed information as a sample; 4) constructing a multi-modal learning model based on a Transform network, namely, a VILT multi-modal model; 5) respectively sending the electronic data information and the electronic image information in the sample into a VILT multi-modal model, and carrying out model training; 6) performing optimization and parameter adjustment on the model by relying on the verification set; 7) taking the electronic signature handwriting of the party needing to be identified as a detected material, and sending the detected material into the trained and optimized VILT multi-modal model to obtain a similarity value; and 9) outputting a detection result. According to the invention, the mapping capability of the electronic image information to the electronic data information is improved, and the accuracy of electronic signature handwriting identification is improved.

The present disclosure relates to a quantum-resistant electronic signature generation method and apparatus, and a quantum-resistant electronic signature verification method and apparatus. The generation method comprises: generating a public key and a private key on the basis of a target unbalanced oil and vinegar algorithm, wherein center mapping of the target unbalanced oil and vinegar algorithm comprises a first matrix, a second matrix and a third matrix, elements in the first matrix and in the second matrix are linear polynomials related to n variables, and elements in the third matrix are quadratic oil and vinegar polynomials related to n variables; the n variables are oil variables and vinegar variables in the target unbalanced oil and vinegar algorithm, and n is a positive integer; acquiring a target message; using the private key to sign the target message so as to generate a target signature; and sending the target message, the target signature and the public key to the second terminal so as to verify the target signature. According to the present disclosure, the first matrix, the second matrix and the third matrix are used for modifying the center mapping, so that the signature difficulty is reduced, and the operation speed is improved while the attack resistance is improved.

Techniques are described for a system document management comprising one or more processors having access to a memory. The system is configured to open an electronic document that is to be electronically signed, the electronic document having an active component connected to an external data source. The system is further configured to, while the electronic document is open, execute the active component to retrieve data from the external data source. The system is further configured to insert the data retrieved from the external data source into a field of the electronic document. The system is further configured to output, for display, a graphical user interface that presents the content of the electronic document to a user device.

Surveillance systems and methods for collecting electronic signatures and visual identifiers of targets to help create identifications or records of targets associated with one or more particular electronic signatures. The surveillance systems and methods can include an event analysis system and methodologies to facilitate classification and association of the collected visual identifiers of the targets with the collected electronic signatures of such targets, and can generate alarms or “hits” indicating presence of a known target across subsets of locations and times of occurrence of such hits or alarms for enhancing tracking and movement of targets throughout selected geographic areas or locations.

Embodiments disclosed herein include systems and methods for generating and editing digital documents, and applying electronic signatures to the documents. The system further performs forensic operations on digital documents for determining the authenticity of the document data or metadata and validating the status of document. The forensic operations may include, for example, security operations, audit trail analysis, and authenticity / verification analysis, which the system performs on an input document being scrutinized for authenticity and a master digital document purportedly corresponding to the input digital document. The system may apply a machine-learning architecture to identify discrepancies otherwise imperceptible to humans or to speed the review process. The system may generate a report for the user who submitted the forensics request indicating the results of the forensic operations. The available forensics operations and level of information about the master digital document are tailored to permissions afforded to the submitting-user.

Disclosed is a smart card including a communication circuit configured to communicate with a reader associated with an authentication service, a memory for storing a program associated with the authentication service, a decentralized identifier, and a VC list, and at least one processor operatively connected to the memory and configured to execute instructions, in which the at least one processor is configured to transmit a VC included in the VC list and associated with the authentication request to the reader when receiving an authentication request from the reader, and generate an electronic signature, when receiving a hash value generated based on at least a piece of information included in the VC, based on the hash value and the decentralized identifier set and transmit the generated electronic signature to the reader. In addition to this, various embodiments grasped through the specification are possible.

The invention relates to the technical field of engineering settlement, in particular to a dynamic cost management system and method for an engineering cost settlement process, and aims to ensure that key information such as construction data and approval records cannot be tampered through a block chain technology and improve data credibility; a multi-dimensional deviation analysis algorithm comprehensively evaluates deviations of building materials, manpower, construction periods and the like, an approval process is automatically started when a threshold value is triggered, and abnormity is quickly responded; the optimal approver is automatically matched, and the flow time consumption is shortened; electronic signature and process monitoring support mobile terminal signing and real-time uploading, paper file delay is avoided, a reminding mechanism is automatically triggered when time is out, and the approval progress is ensured; the visual interaction module visually displays cost deviation and progress comparison through a thermodynamic diagram, a Gantt chart and other tools; automatic report generation and settlement support are achieved, manual accounting errors are reduced, and therefore the problem that in the existing project cost settlement process, cost dynamic management is low in practicability is solved.

A method is described for verification of authenticity of a data source. The method includes generating a key and receiving a digital certificate. The key may be a private key of a key pair, and the digital certificate may be a qualified e-signature (QES) certificate that is tied to the data source and generated by an electronic identification, authentication and trust services (eIDAS). Using the digital certificate and the key, creating a signature certificate. The signature certificate may be stored in a secure element of a recording device. The recording device receives a data stream that may comprise one or more of audio, video, photo, or other sensor data. The data stream is signed with the signature certificate. A public key of the key pair may then be used to verify that the data stream originated at the data source.

The invention discloses a PDF contract file identification method and system, a medium and a program product, and relates to the technical field of information identification, and the method comprises the steps: carrying out the image analysis of an obtained PDF contract file through employing a deep learning model, generating an editable text, and synchronously identifying the page layout of the document, outputting structured data including page numbers, text paragraphs and coordinate information; performing multi-dimensional feature matching on the text paragraphs according to an adaptive semantic analysis algorithm, a preset contract template library and a dynamic keyword library, and positioning contract core element information; performing entity relationship verification on the content of the contract core element information, correcting an extraction error through dependency syntactic analysis and semantic role labeling, and establishing a contract element data set containing a confidence coefficient weight; and performing serialized packaging on the verified contract element data set to generate a contract element list conforming to electronic signature authentication. According to the invention, the processing efficiency and recognition precision of the PDF contract file are improved.

Aspects related to impersonation detection using an authentication enforcement engine are provided. An authentication enforcement platform may retrieve electronic signatures and device records. The platform may train an authentication enforcement engine, using the electronic signatures and device records, to generate similarity scores for transmissions. The platform may intercept a transmission. The platform may generate a similarity score for the transmission based on extracted information of the transmission. The platform may identify whether the similarity score satisfies a threshold. If the similarity score satisfies a threshold, the platform may update a device record, update the authentication enforcement engine, and route the transmission. If the similarity score fails to satisfy the threshold score, the platform may identify whether manual review is necessary. In some examples, the platform may initiate security actions responsive to the transmission. The platform may update the authentication enforcement engine based on initiating the security actions.

The invention discloses an electronic signature security generation method based on multi-factor identity verification, and relates to the technical field of signature generation. Comprising the following steps: counting each identity factor parameter based on a user historical identity verification behavior, calculating a stability transfer coefficient, and forming an initial verification path index chain; identifying an identity factor state, generating a behavior state sequence, and constructing a signature authority level through a preset mapping table; triggering state rollback based on the identity factor behavior state sequence, and updating a verification path index chain and a signature permission level; if the new grade and the historical grade have an inheritance relationship, marking that the current signature is generated by state transition; generating a path state abstract and binding the path state abstract to a signature structure body; and if the state transition is generated, extracting a last signature identifier, and constructing a signature chain tracking structure together with the path state abstract. The method has good signature traceability and asymmetric verification ability, and is convenient for later auditing and evidence obtaining.

The present disclosure relates to methods, devices, and systems for generating a signature of a message by a first device based on a secret key and a public key. The method includes generating a first parameter based on a first multiplication operation on the secret key and a first random number. The method further includes generating a first electronic signature based on the first parameter and the public key. The method further includes generating a second parameter based on the first random number, a second random number, and the message. The method further includes generating a second electronic signature based on the first parameter, the second parameter, the second random number, and the first electronic signature. The method further includes outputting, to a second device, the message, the first electronic signature, and the second electronic signature.

The invention discloses an electronic signature method, device and equipment and a storage medium, relates to the technical field of information security, is applied to an SM2-based certificateless electronic signature system, and comprises the following steps: calling a three-party trusted timestamp service through a client to authenticate timestamp data determined by using an identity label of a signer and label generation equipment information; after the authentication succeeds, encrypting a second user private key determined based on a first user private key sent by the client and the identity label through the server based on a preset SM2 encryption rule; verifying a target private key determined based on the encrypted data obtained by decryption through the client; after verification succeeds, signing the to-be-signed data through the client based on the target private key and an SM2 algorithm to obtain a signature value; performing data assembly based on the data type of the signature application data corresponding to the signature value through the server to obtain signature data; the application signature data is the initial to-be-signed data. And the cost can be effectively reduced.

The invention relates to the technical field of information security, discloses a realization method of an electronic signature of a customs business scene and a seal management system, and aims to solve the problems of trust centralization, easy data tampering, difficult traceability, poor business adaptation and insufficient interoperability of an existing electronic signature. According to the method and the system, a distributed account book technology is introduced, decentralized creation and registration, signature generation and verification, life cycle management and on-chain recording of auditing and tracing of the electronic seal are realized, a dynamic and configurable business scene strategy engine is constructed, a customs business process is flexibly adapted, and high safety, high efficiency and high adaptability are ensured. According to the method, a decentralized trust basis is established, the tamper-proofing capability and efficiency are improved, full-chain auditing traceability and cross-mechanism interoperation are realized, and data security is guaranteed.

The invention discloses an electronic lottery system based on an electronic signature and process data storage technology, and relates to the technical field of lottery systems. Comprising a lottery buyer betting client which receives betting information (lottery types, period numbers and number selection schemes) of lottery buyers through a standard betting control, generates a betting order containing a timestamp and a dynamic information code (a two-dimensional code / bar code, and the time efficiency is 60 seconds), and synchronously collects user real-name authentication information and betting behavior data (operation time and number selection records). A thermo-sensitive paper bill is replaced by the electronic certificate, so that the problem of certificate damage caused by environmental factors is avoided; by combining the electronic signature and the block chain evidence storage technology, tampering-free evidence storage of the voucher hash value is realized, counterfeiting and tampering risks are effectively prevented, and awarding disputes are reduced.

The invention discloses a report anti-counterfeiting system and method combining a dynamic two-dimensional code and an electronic signature, and particularly relates to the technical field of hoisting machinery inspection and detection.The system comprises a data management module, a dynamic two-dimensional code generation module, a dynamic watermark generation module, an electronic signature module and a verification module; a dynamic two-dimensional code with uniqueness and timeliness is generated by extracting key information of a report, a dynamic watermark is generated on each page of the report, and an electronic signature is realized by using a symmetric encryption technology and a digital certificate. During verification, automatic verification can be carried out through WeChat code scanning jumping to a verification page or WeChat service number menu code scanning. According to the scheme, the problems that a traditional report is weak in anti-counterfeiting capability, easy to tamper, low in verification efficiency and the like are effectively solved, the anti-counterfeiting capability of the report is improved, the verification process is simplified, the integrity and non-repudiation of data are guaranteed, the credibility of the inspection and detection report is improved, and the safety accident risk is reduced.

The invention relates to the technical field of information security, and discloses a handwriting dynamic encryption and electronic signature method based on a national secret algorithm, and the method comprises the steps: obtaining the handwriting data of a user, and carrying out the preprocessing of the data to remove noise and errors; carrying out feature extraction on the preprocessed handwriting data, extracting corresponding track features, speed features and pressure features, and generating a feature hash value of a unique identifier through a cryptographic SM3 hash algorithm; splicing and combining the feature hash value and a user private key, deriving a dynamic key through a national secret SM2 algorithm, and generating an electronic signature by using the dynamic key; an electronic signature is combined with a timestamp to form a structured signature packet, and the signature packet is hierarchically encrypted and stored in a database through a national cryptographic SM4 algorithm. According to the method and the system, the handwritten signature picture, the digital signature technology, the electronic signature technology and the biological recognition and layout file processing technology are fused, so that the safety and the reliability of electronic document signing are improved.

The invention discloses a bank-enterprise contract electronic signature verification method and system, and relates to the technical field of electronic signatures, and the method comprises the steps: defining a bank-enterprise contract signature full life cycle process, defining a standard bank-enterprise contract full life cycle process from formulation to implementation, and providing a reliable basis for the verification of the chaining of a subsequent electronic signature block chain. The core information is extracted from the contract information and the performance information, and the core information is linked, so that the block chain can be associated with the core information content, and the security and relevance are improved. And carrying out targeted risk assessment by virtue of the characteristics of the contract signing link and the performance link, and determining the risk condition. According to the method, the core information and the risk degree are combined to perform block chain uploading on the signing link and the performance link, the security and adaptability of the signature are improved, the block chain evidence storage signature of the acceptance link is generated by combining the acceptance information and the respective block chain evidence storage signatures of the signing link and the performance link, and the security of bank-enterprise contract electronic signature verification is ensured.

The embodiment of the invention provides a non-performing asset complaint and dispatch integrated system and method. The system comprises a case import and initialization module, an intelligent case division and strategy matching module, a disposal execution module, a mediation stage module, a litigation stage module, a case settlement and filing module and a data analysis and optimization module. Data interconnection and intercommunication among a financial institution, an outsourcing institution, a mediation center / law office and a court can be realized, case information of the whole process is collected in a unified manner, and informatization management of the urging and complaint business of the whole process including case distribution, collection, online mediation, electronic signing, file filing, litigation result follow-up and the like is realized. The method draws the dynamic image of the case to formulate a proper disposal strategy, timely allocates the appropriate disposal strategy to the corresponding institutions to carry out disposal work, provides digital intelligent services of one-stop follow-up, full-process scheduling and full-chain solution for the vast institutions, improves the case circulation efficiency, saves judicial resources, optimizes the clearing and receiving effect, and comprehensively reduces the cost and increases the efficiency.

Cybercriminals are using advanced techniques to access information not only inside a company network but outside of a company network in the ecosystem of company communications with customers, suppliers, partners, and professional advisors. There are many ways cybercriminals gain access to this information, often by compromising email accounts, archives, and document management systems outside of a company's own control and / or outside of their control to manage security of those external accounts. This invention provides an apparatus that will proactively detect when a cybercriminal has accessed or is attempting to access a document attached to an email, a document stored in a repository, a link to an e-signature transaction, a link to a file download (“Files”), and pre-emptively auto-lock the attempted-to-be-eavesdropped on Files and alert the File owner of a high risk information breach in progress, even if that breach is outside their network or information perimeter.

The invention relates to the technical field of power two-ticket management, and discloses a two-ticket full life cycle optimization and management method and system based on workflow, and the method comprises the steps: obtaining the basic data of personnel qualification, equipment state and flow rule, and constructing a typical work ticket library and a typical operation ticket library; calling a work ticket template or an operation ticket template to perform information supplement, performing double verification, and then completing graded auditing and electronic signature according to preset nodes to generate an effective work ticket and an executable operation ticket; and monitoring the execution process of the effective work ticket and the executable operation ticket, and archiving execution data to a historical database to realize multi-dimensional two-ticket full-process data query, generation of an analysis report, update of basic data, a work ticket typical ticket library and an operation ticket typical ticket library. The standardized typical ticket library is constructed by integrating basic data, monitoring and archiving traceability of two tickets are achieved, standardized intelligent management of the two tickets is achieved, and the problems that existing data are scattered, compliance is poor, traceability is difficult, and no improved closed loop exists are solved.

The invention belongs to the technical field of oil and gas drilling well control equipment, and particularly relates to a ram blowout preventer state confirmation method with a locking indication window, which comprises the following steps: arranging a transparent observation window on a blowout preventer shell, and calibrating the alignment position of the end face of a locking shaft and an inner side reference scribed line; after the locking action is executed, the alignment state is confirmed through multi-angle visual observation; a switchable auxiliary light source is integrated to eliminate visual interference; an industrial camera is used for collecting images, displacement deviation is recognized through an edge detection algorithm, and an alarm is given if the displacement deviation exceeds the limit; and generating an encrypted digital report containing a timestamp and equipment information, uploading the encrypted digital report to a monitoring platform, and supporting real-time check and electronic signature of a mobile terminal. Through three layers of mechanisms of standardized vision-mechanical mapping, optical enhancement and digital perception, high-reliability, high-compatibility and traceable locking state confirmation is realized.

The invention relates to the technical field of dynamic passwords, provides an electronic signature and verification method and system based on a dynamic password, and is used for solving the problems of low anti-counterfeiting capability and poor identity authentication reliability of an electronic signature in a cross-device scene in the prior art. The method comprises the steps that when a signature request of a mobile device is received, firstly, user biological characteristic data are collected and superposed with a timestamp to generate a dynamic password seed, the dynamic password seed is converted into a dynamic password request identifier for biological characteristic relevance verification, and meanwhile, a device hardware fingerprint is matched; after the verification is passed, generating a digital signature by adopting an elliptic curve algorithm, and recording a tamper-proof signature timestamp; encoding the signature, the request identifier, the hardware fingerprint and the timestamp into an electronic signature data packet and returning the electronic signature data packet to the mobile device; and the mobile equipment judges the signature legality by checking the biological characteristic difference degree, the signature validity and the time-space matching. According to the invention, the anti-counterfeiting capability and the identity authentication reliability of the electronic signature in a cross-device scene are improved.

The invention provides an electronic signature service method and system compatible with multiple CA certificates, independent and unified standard functions, interfaces and processes such as certificates, seals, configuration rules and dragged seal signing are formed in a platform system, and API interfaces such as PDF seal picture synthesis and keyword search are carried out by utilizing a JAVA component and an itext component. A virtual complete signing process can be completed before no task is accessed to a CA service provider, and a previewed PDF file is formed; and according to subsequent docking of different CA digital certificates, APIs of different CA digital certificate service providers are accessed to complete configuration, rule explanation, signature authorization verification and the like in links of certificate management, seal management, rule configuration, seal dragging signature and the like, such as signature of seal positions of all parties, automatic signature and the like. According to the invention, various CA digital certificates and different API services and personalized requirements of providers can be flexibly corresponded, and various signing scenes and process specifications of existing users can be met to the greatest extent.

The invention provides a plug-and-play supported localized digital signature terminal, which comprises a file preview module for acquiring an incoming file, previewing the file, adapting to a layout file, positioning a signature position, calling a handwriting signature acquisition terminal device to acquire an electronic signature handwriting time sequence feature sequence or fingerprint stamping image data, and sending the electronic signature handwriting time sequence feature sequence or fingerprint stamping image data to the file preview module; electronic signature strokes are obtained, and a synthesis module synthesizes the signature strokes or / and the stamped images into signatures or / and signatures locally, echoes and adds the signatures or / and signatures to the signing position of the layout file; the cryptographic module adopts a national cryptographic algorithm to calculate digital signatures and encrypted data packets for electronic files, signature handwriting data and stamped data, and the auxiliary module stores, certificates and counts signature contents and signature operation logs in a local terminal; and the identity assistance and authentication module binds the electronic signature handwriting data with the identity information of the signer or / and verifies the identity of the signer according to the handwriting data.

The invention discloses a digital authentication method and system based on industrial production data, and the method comprises the steps: obtaining original industrial production data, generating a unique fingerprint of equipment, binding the unique fingerprint with the original data, and generating an equipment-data binding hash value through employing a national cipher SM3 algorithm; the alliance block chain node dynamically selects a consensus protocol according to the timeliness of the original industrial production data, constructs a Merkle tree structure and stores a root hash value; verifying whether the device-data binding hash value is included by the Merkle tree corresponding to the specific root hash value through a zero-knowledge proof protocol; in the authentication stage, the verified hash value and index information are called, and encryption quality parameters stored under the chain are positioned and decrypted; and generating a three-dimensional credible identifier and a dynamic authentication description text based on the original quality parameter, the hash value, the product identifier information and the block chain transaction information, and performing signature verification through a quantum security electronic signature. According to the invention, the security and reliability of industrial data authentication are improved, and data tampering and counterfeiting are effectively prevented.