Mastercard International Incorporated

Saugandh Datta

Chandan Garg

Awinash Pandey

Ankur Mehta

Sandeep Parvathareddy

Deepak Agarwal

Nibedan Kumar Bhawsinka

Gaurav Kumar

Amisha Madan

A method for optimizing blockchain storage size through use of relative values includes: receiving, by a blockchain node in a blockchain network that manages a blockchain, a plurality of blockchain data values, each including unspent transaction outputs, at least one destination address, and, for each destination address, an original currency amount; identifying a base value; modifying the original currency amount included in each blockchain data value to be a relative currency amount based on a difference between the identified base value and the original currency amount; generating a new block, the new block including a block header and the modified plurality of blockchain data values; and transmitting the generated new block to a plurality of additional nodes in the blockchain network.

Method and system for optimization of data storage for distributed ledgers

Embodiments provide methods, and systems for facilitating a payment transaction utilizing a pre-defined radio frequency allocated by an agency to a merchant. A user may open an application provided and maintained by a payment network on a user device and input the pre-defined radio frequency associated with the merchant. The payment network server is configured to establish a secure radio frequency connection between the user device and a merchant server of the merchant. Post establishment, the user may proceed to make a payment transaction to the merchant by choosing a payment method and authenticating his/her identity. The payment transaction is authorized by an issuer of the payment account and is forwarded to the payment network server. The payment network server is configured to fetch acquirer information of the merchant account and process the payment. Post completion, a confirmation message is sent to the user device over the secure RF connection.

Methods and systems for facilitating a payment transaction over a secure radio frequency connection

A method and a system for facilitating secure card-based transactions are provided. A payment network server stores a mapping database that is indicative of a mapping between actual card data of a transaction card and a plurality of proxy datasets that are stored in the transaction card. The payment network server receives a transaction request for a transaction that is initiated by way of the transaction card. Instead of the actual card data, the transaction request includes a first proxy dataset as an identifier to the transaction card. The payment network server accesses the mapping database and retrieves the actual card data mapped to the first proxy dataset. The payment network server then communicates the transaction request having the actual card data to an issuer of the transaction card. The issuer processes the transaction based on the actual card data.

Method and system for facilitating secure card-based transactions

A method for facilitating payment transactions for offline merchants through a third party service provider includes: receiving, by processing server, a confirmation message for a payment transaction from a computing device including a merchant identifier, consumer identifier, and transaction amount; generating, by the processing server, a notification message including the merchant identifier, consumer identifier, and transaction amount; encrypting, by the processing server, the notification message using a public key of a first cryptographic key pair; transmitting, by the processing server, the encrypted notification message to the computing device; receiving, by an encryption device, the encrypted notification message from the computing device; decrypting, by the encryption device, the encrypted notification message using a private key of the first cryptographic key pair; and displaying, by a display interfaced with the encryption device, a confirmation message including the consumer identifier included in the decrypted notification message.

Method and system for blockchain transaction confirmation for small merchants

The invention provides methods, systems and computer program products for identity authentication for payment card based payment transactions. A payment card may be configured for payor identity authentication for the purpose of an electronic payment transaction(s), and may comprise (i) sensors to measure card handling parameters, (ii) an authentication signature generator, configured to generate and store a biometric identity signature associated with an authorized cardholder&#x2014;which signature is based on a first set of card handling parameter data received from the sensors, (iii) a card handling data comparator configured to receive a second set of card handling parameter data from the sensors, retrieve the biometric identity signature associated with the authorized cardholder, and compare the second set of card handling parameter data with data extracted from the retrieved biometric identity signature, and (iv) an authentication decision generator configured to generate an identity authentication decision based on the comparison.

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Greater Noida, India

Saugandh Datta