8 results about "Trusted timestamping" patented technology

The application relates to a code scanning authentication method, a system and related equipment. The method adopts scanning a two-dimensional code displayed by a client to obtain a trusted timestamp and a dynamic address; based on the trusted timestamp, a first signature is generated by using a first signature private key of a mobile terminal, the first signature is sent to a co-signing server to trigger the co-signing server to use a second signature private key stored by the co-signing server to perform secondary signing on the first signature; according to the dynamic address, a final signature, a signature certificate of the mobile terminal and the trusted timestamp are submitted to a corresponding authentication server; after authentication succeeds, in response to a login state query request, the client obtains user identity information and automatically completes login, the problems that in the prior art, mobile terminal key single-point storage risk is high, and after a private key is leaked, the private key is easily abused to cause authentication credentials to be impersonated are solved, the technical effect that authentication credentials impersonation risk caused by single-end private key leakage is avoided, and the security and reliability of code scanning authentication are improved.

The application provides a satellite communication-based trusted timestamp service system, method, device and storage medium. A satellite NTP server is used for receiving timing time of a satellite signal, starting an NTP service and providing network timing service. A terminal trusted timestamp server is used for starting an NTP synchronization service and acquiring timing time. The terminal trusted timestamp server is used for providing a trusted timestamp signing service to at least one terminal device in the same local area network and generating a trusted timestamp credential through a trusted timestamp interface. The stability and service efficiency of the trusted timestamp service system are improved based on satellite communication. The problem that trusted timestamp service cannot be obtained in places without internet access or with poor network environment when a trusted timestamp service center provides services for external programs or operators through the internet is solved.

The invention provides an intelligent management method and system for extraterrestrial samples, and can be applied to the technical field of artificial intelligence. The technical problems that the approval process of a previous extraterrestrial sample management mode is tedious, sample state updating is lagged, and the safety and the intelligent level are low are solved. The method comprises the following steps: screening out selectable foreign samples from a sample list by using a natural language understanding model of a model analysis layer, and carrying out credit pre-examination according to a borrowing application form to obtain a credit pre-examination report; the borrowing application form is subjected to flow batch auditing, in response to the fact that the flow batch auditing is passed, an electronic borrowing protocol with a credible timestamp is generated through the safety control layer based on an encryption mechanism, and under the condition that the electronic borrowing protocol is confirmed through digital signature, an optional foreign sample specified in the borrowing application form is borrowed according to a borrowing scheme. The efficiency of extraterrestrial sample management is improved, the timeliness of sample states is improved, and the safety and intelligent level of extraterrestrial sample management are improved.

A digital calibration certificate (DCC) generation and verification method and system based on microservices architecture includes: a user subsystem configured to acquire DCC content information and transmit a DCC generation and verification result to a user; a service subsystem configured to provide an access service and acquire calibration business data based on the DCC content information; a processing subsystem configured to generate a DCC based on the DCC content information and the calibration business data and verify the DCC, and obtain the DCC generation and verification result; a digital security subsystem configured to authenticate the user subsystem through the service subsystem and provide a digital signature and a trusted timestamp to the processing subsystem; and a storage subsystem configured to store information and data during processing and provide corresponding information and data to the processing subsystem.

The invention relates to a code scanning authentication method, a code scanning authentication system and related equipment. The method comprises the following steps: scanning a two-dimensional code displayed by a client, and analyzing to obtain a trusted timestamp and a dynamic address; based on the trusted timestamp, generating a first signature by using a first signature private key of the mobile terminal, and sending the first signature to the co-signature server to trigger the co-signature server to perform secondary signature on the first signature by using a second signature private key stored in the co-signature server; submitting the final signature, a signature certificate of the mobile terminal and a credible timestamp to a corresponding authentication server according to the dynamic address; after the authentication is successful, the login state query request is responded, so that the client obtains the user identity information and automatically completes login, and the problems that the mobile terminal key single-point storage risk is high, and an authentication certificate is pretended due to the fact that a private key is easy to misuse after being leaked in the existing scheme are solved; the technical effects that the risk that the authentication certificate is pretended due to leakage of the single-end private key is avoided, and the security and reliability of code scanning authentication are improved are achieved.

The application discloses a kind of based on distributed storage technology's data storage evidence security processing method and system, its method includes: to the original electronic data of being stored evidence carries out hash operation, obtains first level evidence fingerprint;For first level evidence fingerprint issues trusted timestamp, first level evidence fingerprint, the content identifier of original data is combined with trusted timestamp and carries out hash operation as data packet and generates final evidence fingerprint;Final evidence fingerprint is broadcast to block chain network to generate evidence record;According to electronic evidence certificate, final evidence fingerprint is obtained from block chain network, and secondary hash calculation is re-executed to the original electronic data provided by user, and verification fingerprint is obtained, and verification conclusion of data integrity and evidence time credibility is determined according to the consistency of verification fingerprint and final evidence fingerprint.Reduces the cost of evidence, guarantees the high reliability of evidence timestamp, can be independently verified on the public block chain, effectively protects commercial secret and personal privacy.

Embodiments of the present specification provide a data verification method and device, wherein the data verification method comprises: obtaining to-be-verified data, a generation time of the to-be-verified data and a preset data table; performing data matching on the to-be-verified data by using the preset data table, and if the data matching is successful, determining that the existence verification of the to-be-verified data is successful; obtaining a target trusted timestamp from a time ledger, and if it is determined by using the target trusted timestamp that the generation time meets a preset trusted condition, determining that the timeliness of the to-be-verified data is successful. The present scheme can realize more reliable data verification.

This application provides a method and system for generating quantum-resistant timestamps using environmental electromagnetic noise, relating to the field of timestamp generation technology. The method generates a unique environmental fingerprint by collecting signal characteristics of multi-band environmental electromagnetic signals. The hash information of the environmental fingerprint is then bound together with the document hash and the precise UTC generation time using a quantum-resistant signature algorithm to generate a timestamp token. A data storage package is then constructed based on the timestamp token and uploaded to a distributed file storage system. During verification, the environmental fingerprint at the generation time is reconstructed by querying historical public radio data, thereby completing independent verification, improving the security of the timestamp, and effectively solving the problems of timestamp technology relying on centralized institutions and being vulnerable to quantum computing attacks. This achieves a decentralized, highly secure, and low-cost trusted timestamp service.