The invention relates to a device for mining, comprising a computing unit for the calculation of hash values for a character string by means of a cryptographic hash function, the computing unit being configured to calculate the hash values at a hash rate of at least 109 H/s and/or a hash calculation efficiency of at least 107 H/J. The device includes an electrical power supply to which the computing unit can be electrically connected, and a frame to which the computing unit and the electrical power supply are fixedly connected. The device is designed for the transport of an additional payload.

For privacy-preserving attribution, the exposure and/or attribution to physical media (e.g., a surface or object) is determined on-board the mobile device. The exposure and/or attribution may be communicated remotely from the mobile device without passing specific locations and/or identifiers of the operator. The attribution information may be used by others without having access to private information, which never leaves the mobile device.

The present invention relates to a system and a method for performing a closed-loop secured transactions using NFC. The method comprises of receiving a payment selection comprising of instrument selection at a secure element of a first user device. The instrument selection is used to automatically select the closed-loop kernel. The invention further encompasses using symmetric key encryption for the payment selection data which can only be decrypted inside the HSM for quick and hassle-free peer to peer (P2P) or peer to merchant (P2M) closed-loop transactions.

The present disclosure relates to data access management and the relates data access management system, user devices for data users and data sources, as well as to the corresponding methods. In some embodiments, a non-fungible token (NFT) registry is provided as a part of the data access management system, storing on a blockchain: source NFTs, each source NFT (sNFT) being uniquely associated with a data source; and data NFTs, each data NFT (dNFT) being attributed to one sNFT and granting access to the associated data source. The data sources may mint or request minting of the sNFT and the data users may mint dNFTs.

A method for certificate transaction validation of a blockchain-based resource public key infrastructure aims to avoid security threats caused by conflicts or illegal transactions during transactions and improve security. A technical solution is as follows: constructing a resource public key infrastructure RPKIB system composed of a resource issuer, a resource transaction application client, a resource receiver, a blockchain network and a validation node; designing operations of a resource certificate and route origin authorization ROA as transactions, submitting operations of various resource transactions initiated by a resource issuer as transactions to the blockchain network, running, by the validation node, a smart contract to verify the transactions, and distinguishing whether the operations are malicious behaviors or normal operations of an authority.

A wireless device is provided for retrofitting ATMs. The wireless device including a memory; at least one hardware processor coupled to the memory; a hardware interface coupled to the least one hardware processor; and, at least one antenna coupled to the at least one hardware processor, where the at least one hardware processor is configured to: (i) receive over the at least one antenna an instruction to retrieve state data; (ii) receive the state data over the hardware interface from an ATM; and, (iii) transmit over a virtual private network (VPN) using the at least one antenna the state data, where the VPN is separate from a financial institution network the ATM communicates with to perform transactions.

A method for issuing authentication information is provided. The method includes steps of: (a) a managing server, if identification information of a specific user is acquired from a user device in response to a request for issuing the authentication information and the identification information is determined to be registered, creating a transaction whose output includes: (i) the specific user's public key and (ii) a hash value of the identification information or its processed value to thereby record or support other device to record it on a blockchain; and (b) the managing server acquiring a transaction ID representing location information of the transaction recorded on the blockchain.

An encrypted payment message is received from a buyer relating to a transaction with a merchant. The payment message is parsed using a first parsing algorithm to obtain merchant identifying information. The merchant identifying information is associated with at least a second parsing algorithm or at least one settlement algorithm. The payment message is parsed using the second parsing algorithm to obtain payment information for the transaction. A first settlement algorithm is applied to the payment information to determine an adjusted interchange rate. The payment information including the adjusted interchange rate is submitted to a third party settlement processor on behalf of the merchant, using a payment algorithm. A second settlement algorithm applied to the payment information determines a buyer rebate which can be submitted to the settlement processor. A transaction result is reported to at least one of the merchant or the buyer.

A system for authenticating an electronic device by means of an authentication server in order to authenticate a user of said electronic device. The system is adapted to perform an authentication based on a fictive payment transaction and includes the authentication server which is adapted to execute a fictive payment transaction with a predetermined transaction amount with said electronic device and during said execution to receive a first cryptogram from said electronic device; send said first cryptogram to a banking server; and receive from said banking server an acknowledgment if said first cryptogram is valid; when said fictive payment transaction has been executed, compute an authentication identification based on said electronic device's data; said electronic device which is a payment electronic device and which is adapted to execute said fictive payment transaction with said authentication server and during said execution to send said first cryptogram to said authentication server.

A fueling station transaction system, method and retrofitting method, the system having a fuel pump dispensing fuel to individual customers; a forecourt controller; a terminal disposed within the fuel pump, the terminal comprising a processing unit, a secure card reader, an encryption module and a wireless communication module; the terminal being in wireless communication with a payment processor; one or more point of sale systems which communicate with the forecourt controller using established protocols; and a gateway device, wherein the terminal communicates wirelessly with the gateway device, and wherein the terminal and the forecourt controller communicate with each other only through the gateway device, and wherein the gateway device communicates with the forecourt controller using the established protocols of the point of sale systems. Also disclosed is a method of performing the payment transaction, and for retrofitting current fuel station systems to incorporate the system disclosed herein.