3results about How to "Enhanced non-repudiation" patented technology

The invention discloses a natural person identity encryption real-name authentication method and system, and relates to the field of identity and data security. The method is based on a'natural person-encryption terminal-authentication server 'closed-loop encryption architecture, an identity identifier capable of directly recognizing a natural person is not collected, and the core comprises five steps of information collection, authentication initiation, identity authentication, dynamic identity password generation, closed-loop verification and result synchronization. The system adopts a three-level distributed architecture and is composed of an encryption terminal and an authentication server, and the encryption terminal and the authentication server cooperate to achieve secret key fragmentation management, encryption communication and auditing tracing. According to the method, the principle of minimum necessary collection is followed, the national secret algorithm, secret key fragment storage and block chain evidence storage technology are combined, identity authentication is unforgeable, uncounterfeitable and traceable, sensitive information leakage is eradicated from the source, compliance cost is reduced, the method is adaptive to multi-field and multi-terminal scenes, related laws and regulations are met, and high safety and practicability are achieved.

The application discloses a payment transaction encryption verification system of multi-factor identity authentication, relates to the technical field of payment security authentication, and comprises a registration management, real-time data acquisition, risk decision, multi-factor authentication, token generation and transaction verification module. When the payment transaction is initiated, the system dynamically calculates an environmental risk index by analyzing network environment characteristics in real time, and selects a required authentication factor combination for verification in real time according to the index. The system uses an encryption synthesis algorithm to fuse and calculate a plurality of generated independent authentication results and transaction plaintext information, generates an encrypted payment token, and sends the token to a payment gateway to complete decryption and comparison verification. The authentication strength is intelligently and dynamically adjusted according to the environmental risk, the identity authentication evidence is deeply bound with the transaction information by using cryptography, and the security and reliability of the transaction process are improved.

This invention relates to the field of electronic payment technology, and discloses a method and system for electronic evidence preservation for transaction security. The method includes: injecting a payment request as an evidence preservation identifier into the transaction data of a payment gateway to generate evidence-preserving transaction data; extracting key elements of the transaction and binding them with the user's payment identity credentials to form a structured evidence preservation instruction; performing a hash operation on the evidence-preserving payload of the instruction to obtain a digital digest; constructing a trusted evidence preservation data packet by combining a timestamp and the digital digest; generating an evidence preservation completion receipt by associating index information with the evidence preservation identifier as the main body; and digitally signing the receipt to finally obtain a digital evidence preservation certificate. This invention can enhance the evidentiary effect of electronic evidence preservation for transaction security.