111results about "Anonymous user systems" patented technology

The present invention relates to a privacy-preserving EV charging authorization and billing system, and a method for the same. The proposed system is configured to integrate permissioned blockchain with fully homomorphic encryption. The present invention aims to eliminate plaintext exposure mitigates single point of failure, by performing all authorization and billing computations on encrypted data and recoding transactions immutably, wherein an EV user securely generates encrypted authorization and billing requests using FHE-based public keys. The charging station routes these encrypted requests to the blockchain network, which records immutable encrypted transactions and verifies them via consensus. The FHE computation layer performs secure operations on the encrypted data for authorization and billing, while smart contracts execute automated verification and billing computations, ensuring transparency and auditability.

The invention relates to the technical field of offshore trade platform data analysis methods, and discloses an offshore trade platform data analysis method and system based on a block chain, and the method comprises the steps: constructing a distributed network based on the block chain, encrypting key data in an offshore trade process, uploading the key data to a chain for storage, constructing a data analysis model on the chain, and analyzing the data in the chain. By processing and analyzing the uplink data, decision support such as risk assessment, market prediction and credit rating is provided for the user. According to the method, the security and reliability of the offshore trade data are effectively improved by using the decentralization and tamper-resistant characteristics of the block chain, transparent sharing and efficient collaboration of the data are realized through an intelligent contract and a consensus mechanism, the overall efficiency and competitiveness of the offshore trade are improved, and the healthy development of the international trade is promoted.

Systems and methods for enabling secure and efficient interoperability between multiple blockchains, particularly for Central Bank Digital Currency (CBDC) issuance and transfer are described. This architecture allows independent blockchains, each managed by different financial institutions or authorities, to exchange digital assets using a unified cross-chain protocol. Key features include smart contracts for locking, minting, unlocking, and burning digital tokens, relayer subroutines for message transfer, and observer nodes for real-time monitoring and reconciliation. Multi-signature wallets ensure that critical actions require approval from multiple parties, enhancing security and compliance. The system supports both reversible and irreversible cross-chain transfers, dynamic load management, and upgradable smart contracts.

The invention advantageously provides a system for the verification a user's identity and qualifications and authentication of credentials associated with a user's digital identity on a trust network (where service providers involved in a transaction may be independent parties operating with limited trust), in which a pseudonymized transaction record may be created for that digital identity and stored in a shared ledger; identifying information for a user may be retained in a custodial escrow account for that user; and transactions may be re-correlated with identifying information for authorized third parties under established "due process" rules that are appropriate for the applicable jurisdiction(s).

The disclosed systems and techniques discussed herein include a client device that offers a service to a customer in exchange for approval by customer to transfer customer data to a merchant system. The client device initiates a session with a merchant system to receive the customer data from a bank system and requests approval from the customer to transfer the customer data. By presenting a contactless card to the client device, the contactless card passes a message to the client device and the client device communicates the message with the bank system to validate the contactless card. After validation of the contactless card, the bank system communicates the customer data to the merchant system via a switchboard network to establish the service for the customer.

A system for monitoring shopping carts uses cameras to generate images of the carts moving in a store. In some implementations, cameras may additionally or alternatively be mounted to the shopping carts and configured to image cart contents. The system may use the collected image data, and / or other types of sensor data (such as the store location at which an item was added to the basket), to classify items detected in the shopping carts. For example, a trained machine learning model may classify item in a cart as “non-merchandise,”“high theft risk merchandise,”“electronics merchandise,” etc. When a shopping cart approaches a store exit without any indication of an associated payment transaction, the system may use the associated item classification data, optionally in combination with other data such as cart path data, to determine whether to execute an anti-theft action, such as locking a cart wheel or activating a store alarm. The system may also compare the classifications of cart contents to payment transaction records (or summaries thereof) to, e.g., detect underpayment events.

The invention relates to the field of electric power bidding transactions, and provides a power grid privacy enhancement transaction secret state matching method and system based on sequence uncovering encryption. The method comprises the following steps: an electricity seller uploads electricity selling information to a matching party; the electricity buyer screens a target electricity seller according to a preset condition and encrypts the bidding amount to obtain an encryption result of the bidding amount; generating a bidding ciphertext according to the encryption result of the bidding amount and the identity commitment; sending the bidding ciphertext to a matching party; the matching party divides the transaction list into a plurality of ciphertext blocks, randomly selects a transaction as a reference transaction in each ciphertext block, and performs secret state comparison on each transaction and the reference transaction according to the bidding ciphertext to obtain a sorting result; selecting the transaction with the maximum bidding amount according to the sorting result, and determining the transaction as the final transaction amount; and the matching party signs the identity commitment of the electricity buyer by using the private key of the matching party to obtain a signature value, so that the electricity buyer performs offline transaction with the seller according to the signature value.

A system and method for generating, issuing, and recording value transactions in a peer-to-peer data exchange based on a proof-of-data blockchain. The system enables users to open datastores and receive value, with value transactions recorded on the proof-of-data blockchain. Recorders of value compete to obtain blockchain recording rights by issuing value to users who achieve the highest proof-of-data scores. The system supports recording blocks of variable size to enhance scalability and efficiency

The present invention relates to a computer-implemented method for distributed data management on user devices, the method including receiving a query for data from a central server, determining that data stored on the user device satisfies at least one condition of the query, determining a previously generated public key generated by the user device using data stored by the user device, where the data stored by the user device includes a data envelope containing the data and the previously generated public key, the data envelope being signed by an external entity, signing the data envelope using a private key that forms a key pair with the previously generated public key, and responding to the query with the signed data envelope.

The invention provides a user privacy protection method and system for bus payment, and relates to the technical field of information security protection, and the method comprises the following steps: a user sends an anonymous two-dimensional code account application request to a bus taking code APP through a user side, generating corresponding anonymous assembled message data at a user side, and sending the anonymous assembled message data to a privacy protection background for analysis; the privacy protection background receives and analyzes the anonymous assembled message data and sends response data of the privacy protection background to the riding code APP, and the riding code APP requests a code platform and completes opening of an anonymous two-dimensional code account; the user uses the anonymous two-dimensional code account, the anonymous wallet account and the recharging request to generate a corresponding message response privacy set and then completes anonymous code scanning and recharging service for the anonymous wallet account; the payment behavior of the normal user does not leak the specific identity of the user.

Various systems and methods of anonymously conducting a secured payment transaction between a consumer and a merchant are disclosed. The methods can be carried out at a transaction code computer in communication with an alias directory. According to the method a transaction code computer receives a request for a dynamic transaction code from a merchant computer. The request includes a merchant alias identifier. The transaction code computer queries an alias directory storing merchant information details. The transaction code computer validates the merchant with the alias directory based on the merchant alias identifier. The transaction code computer generates the dynamic transaction code and transmits a response to the request for the dynamic transaction code to the merchant computer.

A computer-implemented system includes a treatment apparatus configured to be manipulated by a patient while performing a treatment plan and a server computing device configured to execute an artificial intelligence engine to generate the treatment plan and a billing sequence associated with the treatment plan. The server computing device receives information pertaining to the patient, generates, based on the information, the treatment plan including instructions for the patient to follow, and receives a set of billing procedures associated with the instructions. The set of billing procedures includes rules pertaining to billing codes, timing, constraints, or some combination thereof. The server computing device generates, based on the set of billing procedures, the billing sequence for at least a portion of the instructions. The billing sequence is tailored according to a certain parameter. The server computing device transmits the treatment plan and the billing sequence to a computing device.

The invention discloses a notarist mechanism-based exchange rate dynamic adjustable cross-chain method and a blockchain cross-chain system, and the method comprises the steps: enabling a transaction sender to exchange funds into cross-chain tokens at an asset manager at first when cross-chain initiation is carried out; and then the cross-chain token is transferred to a target chain in a cross-chain manner by using a Hash time lock contract through the assistance of a notary group. According to the invention, a traditional notarist-based cross-chain mechanism is improved, a new role-fund manager is introduced, and the exchange rate is endowed with a dynamic adjustment capability, so that external market changes can be dealt with in time; meanwhile, a chameleon hash function is used in the scheme, and under the condition that at least one honesty node exists in a payment path, the payment relationship between two transaction parties can be perfectly hidden, so that the relationship privacy of the user is well protected.

A method may include: receiving a request to deposit an encrypted amount of deposit tokens from an institutional investor; generating a stealth address for the institutional investor; encrypting claims for the institutional investor; posting the encrypted claims to an encrypted claims result smart contract, wherein the encrypted claims are mapped to the stealth address on a privacy-preserving blockchain; establishing the encrypted amount of deposit tokens on-chain at the stealth address; receiving an encrypted amount of a first fund and an encrypted amount of a second fund from the stealth address; and atomically transferring the encrypted amount of the first fund and the encrypted amount of the second fund to the stealth address, and deposit tokens for the encrypted amount of the first fund and the encrypted amount of the second fund to a fund manager for the first fund and a fund manager for the second fund, respectively.

A charitable payment system is provided for use in boundary-less commerce. The system includes a computer server having a memory storing charitable organization or other organization data and user data and a user computing device coupled to the computer server. The system establishes a proximity zone around a business area. When a user computing device enters the proximity zone, a connection between the server and the user computing device is established. The computer server may be programmed to receive from the user computing device a signal activating a payment, the signal including user data and payment data, including user identifying information and a payment amount. The computer server may be programmed to process the payment and account for the payment amount.

The invention belongs to the technical field of block chains and privacy protection, and particularly relates to a privacy-protected block chain cross-chain asset transaction method. The method comprises the following steps: firstly, generating a virtual identity, and completing ownership verification based on zero-knowledge proof to ensure that an address and the identity are decoupled; secondly, creating a ring account by using the virtual identity, and constructing an address privacy isolation carrier; and then combining the virtual identity and the ring account to design a shared burning / casting privacy primitive so as to eliminate the difference of address assets on the chain. And then, executing cross-chain fund transfer based on the primitive, and realizing one-way asset privacy transfer through light client verification and relay transmission. According to the method, the non-linkability of the addresses of the two cross-chain parties is realized, the execution delay is controlled at a millisecond level, the cost on the chain is reduced by 30-40% compared with that of a similar scheme, the method is compatible with cross-chain architectures such as light clients and notarians, is adaptive to multi-chain DeFi and cross-chain lending scenes, and has high privacy, high efficiency and high expansibility.

A method and apparatus are provided for a digital user to anonymously receive and send a payment. Digital users reside in a network and perform functions on behalf of physical users such as wireless communication devices. The digital subscriber includes a plurality of functions required to support a variety of User Centric Management (UCM) services (User Centric Management, UCM) services. A D-User may receive a request for a method to receive a payment, and may obtain a temporary account identifier for a financial institution to receive the payment. The UCM may transfer funds to the financial institution through the temporary account identifier to ensure that the payment remains anonymous.

The central computer system converts the consumer's identifying information into an identification code that conceals the identity and stores it along with contact information for the consumer's computer system. When a computer system on the central computer system's network transacts with an entity that uses the consumer's identification code, the central computer system contacts the consumer's computer system, allowing the consumer to stop the transaction if it is unauthorized. Because only the identification code is used to protect the consumer, the consumer's original identity is fully protected.

The invention relates to a method for direct transmission of electronic coin data records between a first terminal and a second terminal, wherein the second terminal performs the following steps: receiving electronic coin data records from the first terminal, wherein at least one electronic coin data record comprises a currency amount and a hidden amount; generating modified electronic coin data records using the received electronic coin data records; masking the modified electronic coin records by applying a homomorphic one-way function to the modified electronic coin records in order to obtain masked modified electronic coin records; sending a registration request for the masked modified electronic coin data records to a monitoring entity. The invention also relates to a currency system and a payment system comprising: a decentralized controlled database in which the masked electronic coin data records are stored; and a direct transaction layer comprising at least two terminals in which the method can be executed.

A method, system, and program that allows a third party to determine whether a first party and a second party agree on membership in a set of blockchain transactions transacted between the first party and the second party.

Systems and methods are provided for generating and managing personalized payment plans utilizing artificial intelligence (AI). For example, the techniques described herein may support an AI-powered system that generates personalized payment plan options based on (e.g., optimized for) affordability, successful repayment, or both. By analyzing a customer's financial situation, spending habits, creditworthiness, or any combination thereof, the system may tailor the personalized payment plans to individual needs, may adapt to dynamic circumstances, and may predict repayment success with accuracy (e.g., a threshold level of accuracy). This system may be applicable to multiple industries, including, but not limited to, a multi-family housing industry.

Systems, devices, and methods for cross-chain interoperability protocol privacy are disclosed for privately transferring cross-chain transactions from a source chain to a destination chain. Transfer of information and / or assets between blockchains is encrypted and decrypted, leading to improved functionality and privacy for each respective chain.

Techniques for enhancing privacy measures in a blockchain are disclosed. A service generates a smart contract for an asset. The smart contract includes a storage space having a public address field comprising a first public address value. The first public address value is associated with a first private key that is usable to generate a proof of ownership of the asset. The service deploys the smart contract to the blockchain. The service generates a second private key. The service uses the second private key to generate a second public address value. Despite a current owner of the asset not changing such that no transactions involving the asset are performed, the service transmits the second public address value to the smart contract to trigger the smart contract to replace the first public address value in the public address field with the second public address value.

Interactive event streaming can be provided in real-time and selectively transmitted to data consumers based on a rules engine. For example, a computer-implemented method described herein can include receiving a plurality of interaction events from at least one processing application. The method can include modifying the plurality of interaction events to produce a plurality of secured interaction events, wherein personal information of at least one data publisher in each secured interaction event of the plurality of secured interaction events is obscured. The method can further include selecting, based at least in part on a rules engine, at least one particular interaction event from the plurality of secured interaction events. Additionally, the method can include notifying a data consumer of the at least one particular interaction event from the plurality of secured interaction events.

A computer-implemented system facilitates controlled social interactions in public venues without exposing users outside those venues. A server receives location signals from user devices, confirms presence within a venue geofence using stored boundary data and short-range checks, and issues venue-bound session tokens. The server computes a venue “vibe” profile by fusing audio features, occupancy estimates, and explicit user feedback, and returns the profile to devices. Messaging between devices is authorized only while both present valid tokens; authorization is revoked and venue-scoped identifiers and message metadata are purged when a device leaves or a token expires. Optional features include Live-Peak time-gated live view with credit-based extensions, administrative boundary refinement, and tokenized payments to venue merchants upon acceptance of offers. The system supports interactions beyond dating, including friendship, group coordination, and professional networking.

Systems and methods for data capture and verification of documents. One such system may include a processor configured to execute a verification system comprising initiation, collection, data extraction, contracting, data encryption, and authentication modules. Other such systems may include a software application comprising similar modules. The systems may further comprise disbursement modules, repository modules, and rewards modules. Further, the systems may be operative to create an electronic wallet configured to receive at least one asset. Moreover, some embodiments of the present invention include a method comprising receiving at least one instrument; extracting a first set of information from the same; generating at least one smart contract; encrypting the first set of information into the at least one smart contract; and verifying at least one individual's identity via a first verification step and a second verification step.

To provide a method and apparatus for a remittance service.SOLUTION: An operation method of a server providing a remittance service includes the steps of: receiving, from a remitter participating in an anonymous chatroom by using a first temporary profile, a request for a remittance to a second temporary profile participating in the anonymous chatroom; verifying a remittance qualification of an account of the remitter; generating remittance transaction information for remitting the amount corresponding to the remittance request to an account of a remittee corresponding to the second temporary profile; and transmitting, to the account of the remittee, a remittance notification including information on the first temporary profile as remitter information.SELECTED DRAWING: Figure 1

The present invention relates to a privacy-preserving EV charging authorization and billing system, and a method for the same. The proposed system is configured to integrate permissioned blockchain with fully homomorphic encryption. The present invention aims to eliminate plaintext exposure mitigates single point of failure, by performing all authorization and billing computations on encrypted data and recoding transactions immutably, wherein an EV user securely generates encrypted authorization and billing requests using FHE-based public keys. The charging station routes these encrypted requests to the blockchain network, which records immutable encrypted transactions and verifies them via consensus. The FHE computation layer performs secure operations on the encrypted data for authorization and billing, while smart contracts execute automated verification and billing computations, ensuring transparency and auditability.

A system for managing and using digital financial assets, such as cryptocurrency uses multiple independent devices that mutually cooperate to control cryptocurrency assets in a secure manner. Each of these devices may store a unique private key associated with the cryptocurrency assets, which may be configured such that a certain minimum number of these private keys are required to transfer the cryptocurrency assets. The use of multiple private keys spread across multiple distinct devices may reduce the likelihood of loss stemming from a hardware failure or reduce the likelihood of an attacker successfully gaining access to the cryptocurrency assets. In addition, selection of the devices to be used for storing these private keys, as well as how many private keys are required to authorize a transaction, may be tailored to balance a user's preferences for reliability of access versus security and for third-party custody versus self-custody.

The invention discloses an anonymous payment protocol based on a USIM card, and relates to the technical field of electronic payment. Comprising the steps of constructing an anonymous transaction environment and executing a payment protocol; the construction of the anonymous transaction environment specifically comprises the following steps: a user terminal initiates an anonymous payment request E to a bank node; a traceable anonymous transaction environment is established after the bank verifies the request; the payment protocol is specifically executed as follows: a payment path is confused by setting a forwarding node and identity replacement; wherein the forwarding node determines message forwarding based on the probability evaluation result until the total communication path meets the preset secret level, and triggers the USIM server to complete payment. The information security of the payer is ensured, and the information of the receiver is held by the USIM instead of the payer, so that the information security of the payee is ensured, and the payment efficiency is improved. And the UISM server records the information of key transaction initiators and receivers, so that the traceability of the information is realized.