47results about How to "Enhanced non-repudiation" patented technology

The present invention discloses a warehouse receipt transaction security enhancing method in a warehouse receipt system based on the blockchain. The method comprises that: public keys and private keys capable of verifying the identity of each node are generated by using a CA certification mechanism, wherein the warehouse receipt issuance node of the warehouse receipt system is taken as the node of a sender, a warehouse receipt is generated after the completion of warehousing, and warehouse information is encrypted by using the public key of the receiver to form a ciphertext; the ciphertext is signed by using the private key of the receiver, and a transfer order is made to be sent to the node of the receiver in the form of the broadcasting; and in each process of warehouse receipt transaction, the intermediate node and the node of the receiver use the public key of the sender to verify and sign the transfer order, and if the receiver needs to use the warehouse receipt, the private key of the receiver must be used to decrypt the warehouse receipt information on the transfer order. According to the warehouse receipt transaction security enhancing method in the warehouse receipt system based on the blockchain provided by the present invention, through the double verification mechanism of CA certification, and encryption and signature, the security of the warehouse receipt transaction and the privacy of the warehouse receipt system are improved.

The invention discloses a system and method for the on-line adding of an instant file dynamic label and on-line encryption, and the system and method are used for converting each file, and adding at least one label which has the information related with the file and a user. According to the demands of the user, the system and method carry out encryption of the file, so that the user decrypts and watches the file. The method comprises the steps: firstly transmitting at least one file through a data input unit; secondly converting the file from the data input unit into a file at a format of PDF through a first conversion unit, and adding the label, which has the information related with the file and the user, through a label adding unit; thirdly carrying out the encryption of the file from the first conversion unit through an encryption unit, forming an encrypted file, and generating a corresponding decryption key; and finally enabling the encrypted file and the corresponding decryption key to be respectively transmitted to a first storage unit and a second storage unit for storage.

The invention provides a double-line architecture express delivery information protection method based on a mobile terminal for research on informatization management correlation technologies in the express delivery industry. According to the invention, when a dispatcher collects an express, privacy information of a user is input in a client-side local database of the dispatcher, palm print authentication is used for replacing traditional sign authentication, and an only two-dimension code generated according to express information is attached to the express; then the express information is blocked by improving a SQLCipher encryption database, and the safety of the express information is ensured; and during express delivery, the privacy information of the user is transmitted between dispatchers in a Bluetooth manner by means of the two-dimension code, the privacy information of the user is isolated from the dispatchers, express companies and the like, and the express is transported through a traditional logistics network. In order to improve the efficiency of express delivery business, an oriented push-out sorting model based on a net structure is provided, a path optimization scheme based on a Floyd algorithm is designed, and the sorting model and the path optimization scheme are enabled to cooperate with and compensate each other.

The invention discloses a large-scale project management system based on the blockchain technology. A central node, stakeholder nodes, a key module, an information retrieval module and a block structure module form an integrated body; the central node is a planning department node, the stakeholder nodes are a R&D department node, an expert group node, a finance department node, a construction unitnode and a device unit node; the central node and the stakeholder nodes are connected through the P2P network. The system is advantaged in that the stakeholder nodes of the enterprise large-scale project and the project implementation flow are interconnected through the blockchain technology, and stakeholders are made to participate effectively in large-scale project management; data generated during project implementation are stored in the multiple nodes, and data availability is improved; blockchain reading and writing permissions are effectively allocated, and data security and non-repudiation are improved; the contract dispute risk and transaction cost are reduced, and transaction automation is promoted.

The invention discloses a duplicating monitoring system and relates to the technical field of computer technology and information safety. The system comprises a monitoring terminal and a server, wherein the monitoring terminal is used for locking and unlocking a duplicator to obtain identity information and image information of a duplicator user and duplicating logs and duplicating contents of a legal user, and the identity information, the image information and the duplicating logs and the duplicating contents of the legal user can be uploaded to the server by the monitoring terminal in real time, and the server is used for checking legality of the user, receiving the user's identity information, image information, duplicating logs and duplicating contents sent by the monitoring terminal, generating an audit report which includes the identity information and the image information of the legal user and the corresponding duplicating logs and contents of the legal user, and supplying inquiry of the audit report. The system has the advantages that the duplicator is controlled to be merely used by authorized users, the duplicating logs can be comprehensively, accurately and automatically recorded, simultaneously the audit report of the duplicating logs is supplied, and the system is convenient for administrative stuffs to inquire and audit the duplicating operation.

The invention provides one of multi-channel active type network identity verification systems. The multi-channel active type network identity verification system comprises a user end device and a service providing end system. The service providing end system comprises a service processing module and a safety certificating module. When the service processing module receives a service request sent from the user end device through a first transmission channel, the safety certificating module can generate a challenge value through a challenge response algorithm, and the service processing module is used for transmitting the challenge value to the user end device. The user end device generates a response value corresponding to the challenge value through a verification data generating module, the response value is encrypted to generate safety verification data, then the safety verification data is sent back to the safety verification module in a short message mode through a second transmission channel, and a network identity verification program can be completed. According to the system, non-repudiation and safety of the safety verification data sent by the user end device can be improved, and accuracy and reliability of network identity verification can be effectively strengthened.

The present invention provides a digital certificate application method and system, a fog node and a certificate authority center. The method for applying to the fog node includes: sending a traditional certificate request to an external certificate authority center; using a traditional private key to sign a unique identification number when a traditional digital certificate and the traditional private key sent by the external certificate authority center according to the traditional certificate request is received; sending an update certificate request carrying the traditional digital certificate and the signed unique identification number to the external certificate authority center; generating a fog node secret key according to a preset secret key generation rule while a central secretkey sent by the external certificate authority center is received; generating a new public key and a new private key according to the central secret key and the fog node key; sending the new public key, the traditional digital certificate, and the unique identification number to the external certificate authority center so that the external certificate authority center to publish a new digital certificate for the new public key according to the traditional digital certificate and the unique identification number. The scheme can improve the security of fog node communication.

The invention relates to a cloud terminal identity authentication method based on blockchain encryption and biological information identification. The method comprises the steps of identity information authentication file issuing and identity information authentication login; identity information authentication file issuing comprises the steps of acquiring related information of an identity authentication applicant; encrypting the related information based on a blockchain elliptical encryption algorithm to generate an identity information authentication file, storing the identity information authentication file in a distributed storage system in a slicing manner, and storing the identity information authentication file in an identity authentication information storage medium at the same time; and issuing the identity information authentication file to an identity authentication applicant; the identity information authentication login comprises the following steps of enabling a cloud server to determine a user identity according to an identity information authentication file in an identity authentication information storage medium; and recording identity information authentication login operation and updating the identity information authentication file through the distributed storage system. According to the invention, all-round protection of user data security can be realized,and the possibility of cracking is greatly reduced.

The invention discloses a system and method for adding real-time file dynamic tags and encryption online, which is used to transfer each file and add at least one tag related to the file and user information, according to The user's demand is encrypted for viewing after decryption by the user. At first, at least one file is transmitted through a data input unit; the file from the data input unit is converted into PDF format through a first conversion unit, and Adding at least one tag related to the file and user information via a tag adding unit; encrypting the file from the first file transfer unit through the encryption unit to form an encrypted file and generate a corresponding Decryption key: transmitting the encrypted file and the corresponding decryption key to a first storage unit for storage and a second storage unit for storage.

The invention relates to an identity authentication device and method with a digital signature, handwriting and a fingerprint combined. The identity authentication device with the digital signature, the handwriting and the fingerprint combined comprises a main control module, a fingerprint module and a handwriting module, wherein the main control module is connected with a PC, or an external connecting disk, or a mobile terminal via a USB / a serial port / a wired network / a WIFI external data interface, the handwriting module is used for adding a handwriting signature to a relevant position of an electronic document under the condition that a user needs to carry out a traditional signature on the electronic document, the fingerprint module is used for obtaining a fingerprint image and delivering the fingerprint image to the main control module, the main control module will carry out identity authentication based on the fingerprint image and add the fingerprint to a relevant position of the document, and the main control module is used for providing an encryption and decryption algorithm and a fingerprint algorithm, main logical processing, external control and communication data processing. The identity authentication device with the digital signature, the handwriting and the fingerprint combined has the advantages that a traditional signature mode can be achieved in the paperless office environment, usage habits of a user are changed as few as possible, the application reliability is higher than that achieved by only usage of a PKI system, and the problems that the traditional paper signature is prone to damage, difficult to inquire, and high in saving cost are solved.

The present invention provides a digital certificate application method and system, a fog node and a certificate authority center. The method for applying to the fog node includes: sending a traditional certificate request to an external certificate authority center; using a traditional private key to sign a unique identification number when a traditional digital certificate and the traditional private key sent by the external certificate authority center according to the traditional certificate request is received; sending an update certificate request carrying the traditional digital certificate and the signed unique identification number to the external certificate authority center; generating a fog node secret key according to a preset secret key generation rule while a central secretkey sent by the external certificate authority center is received; generating a new public key and a new private key according to the central secret key and the fog node key; sending the new public key, the traditional digital certificate, and the unique identification number to the external certificate authority center so that the external certificate authority center to publish a new digital certificate for the new public key according to the traditional digital certificate and the unique identification number. The scheme can improve the security of fog node communication.

A method for generating an electronic signature with a digital watermark, executed by an electronic device, during a shooting period for generating a video, obtaining a summary of the signature message according to file data and mathematical functions related to the file, and obtaining a summary of the signature message for the video For each image received after the summary of the signature message, signature track data is generated according to all track messages related to the signer's signature track received before the reception time of the image, and the signature track data is converted into the signature track data. added to the image, and upon obtaining the signature message digest, the electronic device adds a digital watermark comprising the signature message digest to the video to generate an electronic signature comprising the video. In addition, the present invention also provides an electronic signature verification method and an electronic device.

The invention discloses a double medium and double authentication fast off-line payment method under a public key system, which comprises the steps that a double medium off-line payment device under a VLC (Visible Light Communication) and Barcode public key system is built, wherein the double medium off-line payment device comprises an electronic wallet, a consumption machine and a server; implementation of the payment method is accomplished by the consumption machine and the electronic wallet; the electronic wallet sends visible light signals in the payment process and scans a barcode displayed by the consumption machine; and the consumption machine receives the visible light signals and generates a display barcode provided for the electronic wallet to scan. Mutual verification is performed on the identity and transaction information of the consumption machine and the electronic wallet by adopting the public key system, and the security of the off-line payment method and the non-repudiation of the two transaction parties are effectively improved.

The invention discloses a duplicating monitoring system and relates to the technical field of computer technology and information safety. The system comprises a monitoring terminal and a server, wherein the monitoring terminal is used for locking and unlocking a duplicator to obtain identity information and image information of a duplicator user and duplicating logs and duplicating contents of a legal user, and the identity information, the image information and the duplicating logs and the duplicating contents of the legal user can be uploaded to the server by the monitoring terminal in real time, and the server is used for checking legality of the user, receiving the user's identity information, image information, duplicating logs and duplicating contents sent by the monitoring terminal, generating an audit report which includes the identity information and the image information of the legal user and the corresponding duplicating logs and contents of the legal user, and supplying inquiry of the audit report. The system has the advantages that the duplicator is controlled to be merely used by authorized users, the duplicating logs can be comprehensively, accurately and automatically recorded, simultaneously the audit report of the duplicating logs is supplied, and the system is convenient for administrative stuffs to inquire and audit the duplicating operation.