Mastercard International Incorporated

Mastercard International Incorpoated

Jaipal Singh Kumawat

Chandan Garg

Gurpreet Atwal

Ankur Arora

Vipul Mehrotra

Aditya Koduri

Hemant Arora

Ved Pratap Singh Chauhan

Madhavi Sharma

Sourabh Kumar Maheshwari

Vikas Bishnoi

Shubham Kumar

Shreya Mittal

Shuvam Sengupta

Nishant Maheshwari

Sandeep Parvathareddy

Apoorva Dixit

Teja Chebrole

Shweta Khattar

Ajay Panwar

Manoneet Kohli

Rick Unnerstall

Rakesh Kumar Patel

Shubham Bijawat

Navneet Kumar

Manish Kumar

Pulkit Gupta

Lakshmi Sushma Daggubati

Sri Chaitanya Sanaboina

Deepak Yadav

Shubham Jain

Nikhat Parveen

Meenakshi Shandilya

Ishan Hussain

Ruchik Atulkumar Mehta

Amit Somani

Padma Jadav

Raviraj Bhatt

Paras Rashmikant Vanjara

Sourabh Rajput

Shivani Magarkar

Blessy Vohra

Avinash Upadhyay

Manjeet Singh

Komalpreet Kaur

A verification computing system for verifying operation of a payment terminal and a payment processing network linking the payment terminal to a payment processor is provided. The verification computing system includes at least one verification computing module including at least one processor. The verification computing module is programmed to receive a test request message corresponding to a test payment card transaction from the payment terminal, identify a void flag included in the test request message, and bypass a settlement process for the test payment card transaction based on the identified void flag. The verification computing module is further configured to determine an operating status of the payment terminal and the payment processing network, generate a test response message based upon the determination, and transmit the test response message to the payment terminal for notifying a user.

Methods and systems for verification of operations of computer terminals and processing networks

A method for improved security in blockchains using quantum key distribution includes: storing a first cryptographic key; establishing a first communication channel with an external device; generating a second cryptographic key over the first communication channel using quantum key distribution; encrypting a data set using the second cryptographic key; generating a blockchain data entry including at least the encrypted data set; and transmitting the blockchain data entry to a blockchain node in a blockchain network causing the blockchain node to verify the blockchain data entry and add the blockchain data entry into a new block added to a blockchain associated with the blockchain network.

Method and system for quantum key distribution (QKD) within blockchain platforms

A method for dynamic selection of transactions for inclusion in new blocks added to a blockchain includes: receiving, by a blockchain node in a blockchain network that manages a blockchain, a plurality of proposed transactions; sorting, by the blockchain node, each proposed transaction into one of a plurality of transaction groups; identifying, by the blockchain node, a selection of proposed transactions based on one or more dynamic selection criteria, where the selection of proposed transactions includes one or more proposed transactions from one or more of the plurality of transactions groups based on the one or more dynamic selection criteria; generating, by the blockchain node, a new block including a new block header and the identified selection of proposed transactions; and distributing, by the blockchain node, the generated new block to a plurality of additional nodes included in the blockchain network.

Method and system for dynamic addition of blocks in a blockchain

A method for delivering encrypted data through a blockchain with limited transferability includes: receiving, by a receiver of a blockchain node, a transfer submission including at least a transfer token, a recipient address, and an encrypted data message; determining, by a processor of the blockchain node, a number of past transfers for the transfer token in a blockchain associated with a blockchain network that includes the blockchain node; validating, by the processor of the blockchain node, that the transfer token is eligible for an additional transfer based on at least the number of past transfers; generating, by the processor of the blockchain node, a blockchain data value including at least the encrypted data message, the transfer token, and the recipient address; and transmitting, by a transmitter of the blockchain node, the generated blockchain data value to one or more additional nodes included in the blockchain network.

Method and system for control of PII through limiting transfers on blockchain

A method for linking an initial authentication of an online transaction to a subsequent authorization of the online transaction is provided. The method includes: receiving an authentication request message including transaction data, storing in an authentication database authentication data including an initial transaction amount, causing margin data representative of an authentication margin to be associated with the authentication data in the authentication database, receiving a request to link an authorization request message for the online transaction to the authentication data wherein the authorization request message including a fulfillment transaction amount greater than the initial transaction amount, determining that the fulfillment transaction amount does not exceed the initial transaction amount by more than the authentication margin, and transmitting an indication that the authorization request message is successfully linked to the authentication data, thereby enabling authorization by the payment network of the online transaction including the fulfillment transaction amount.

Systems and methods for reducing authentication network messaging with updated authorization requests

A method for periodic aggregation of blockchain transactions for reduced processing times and bandwidths includes: storing at least a cryptographic key pair comprising a private key and a public key and a plurality of unspent blockchain transactions, each unspent blockchain transaction including at least an output address and transaction amount; generating a digital signature using the private key; generating a recipient address using the public key; generating a new blockchain transaction after satisfaction of a trigger condition, the new blockchain transaction including each of the plurality of unspent blockchain transactions as inputs, the digital signature, the recipient address, and a transfer amount based on a summation of the transaction amount for each of the unspent blockchain transactions; and transmitting the new blockchain transaction to a node in a blockchain network.

Method and system for improved blockchain performance through aggregation

A method for improving consensus in a blockchain network through decentralized grouping includes: identifying, by each node of a plurality of nodes in a blockchain network that manages a blockchain, a plurality of groups, where each is comprised of a subset of nodes; generating, by each node in each subset of nodes, a new block for the blockchain; performing, by each subset of nodes, a first consensus operation among all nodes in the subset of nodes for the new block generated by in the subset of nodes to identify a group consensus block, where each node in the subset of nodes receives the group's group consensus block; and performing, by the blockchain network, a second consensus operation among all groups for the identified group consensus block to identify an overall consensus block, where a majority of groups of the plurality of groups receives the overall consensus block.

Method and system for grouping of blockchain nodes

A method for authenticating a user includes receiving an authorization request for a transaction from an account. A plurality of authentication questions each having a corresponding correct answer are associated with the account. A first set of authentication questions of the plurality of authentication questions is transmitted to a communication device by way of an interactive voice response (IVR) call. A first set of user-generated answers corresponding to the first set of authentication questions is received from the communication device. The method further includes determining whether the user is an account holder of the account based on at least the first set of user-generated answers. The transaction is processed based on the determination that the user is the account holder of the account, thereby authenticating the user.

Method and system for user authentication to facilitate secure transactions

A method for confirming a blockchain transaction utilizing output from a transaction still waiting inclusion in a blockchain includes: storing, in a node of a blockchain network, a plurality of waiting blockchain transactions not included in a blockchain associated with the blockchain network; receiving a new blockchain transaction including a transaction amount, destination address, digital signature, and an unspent transaction output, where the unspent transaction output is a reference to one waiting blockchain transactions; validating the new blockchain transaction including confirmation of the one of the waiting blockchain transactions; generating a new block including a block header and a plurality of blockchain data entries including at least the new blockchain transaction and the one of the waiting blockchain transactions; and transmitting the generated new block to a plurality of additional nodes in the blockchain network for confirmation.

Method and system for optimizing transaction flow for blockchain mining and confirmation

Authenticating a secure element payment card includes transmitting a cold reset signal to the payment card and receiving an answer-to-reset message therefrom. The answer-to-reset message includes governing rules for performing a transaction, including a rule indicating that a secure data element is to be used to authenticate the payment card. The process also includes receiving payment account details for a payment account associated with the payment card. A payment authorization request message is transmitted to an interchange network and a card authentication request message is then received from the interchange network. The card authentication request message includes an encrypted instruction, which is transmitted to the secure element payment card. The secure data element is received from the payment card and a card authentication request response message is then transmitted to the interchange network. A payment authorization request response message is then received from the interchange network.

Extra security element on cards to protect against fraud

A method for ensuring precedence for the processing of a blockchain transaction to prevent loss of cryptographic currency includes receiving a new blockchain transaction by a blockchain node in a blockchain network, confirming the new blockchain transaction including identifying a precedence transaction that was previously conducted and stored in the blockchain that involves both blockchain wallets included in the new blockchain transaction, including the new blockchain transaction in a new block that is generated, and distributing the new block to additional nodes in the blockchain network for confirmation and addition to the blockchain.

Method and system for prevention of lost currency in blockchain networks to missing wallets

The invention provides systems, methods and computer program products for securing electronic transactions and users of electronic transaction services from phishing attacks by malicious attackers and fraudsters. A terminal device receives a first data communication comprising an OTP associated with a requested electronic transaction, and identifies a validity period associated with the OTP. The terminal device responds to detection of a second data communication between the terminal device and a remote entity during the identified validity period, by extracting content from the second data communication. The extracted content is analyzed and a risk decision is generated based on output of the analysis of the extracted content. The risk decision determines whether the remote entity comprises, or is controlled by, a malicious attacker. Responsive to the risk decision determining that the remote entity comprises, or is controlled by, a malicious attacker, the terminal device may initiate a risk mitigation process.

Systems, methods and computer program products for securing electronic transactions

Systems and methods are provided for identifying an account via a hash key specific to the account and presented to a third party, in connection with a network interaction. One example method includes receiving, by a computing device, from the third party, the hash key in connection with the network interaction, determining a primary account number (PAN) for the account based on the hash key, and identifying an issuer of the account based on the determined PAN. The method also includes transmitting a verification request to the issuer, to verify details of the account, and receiving a code from the issuer indicative of the verification. The method further includes intercepting an authorization request for the network interaction based on the authorization request including the hash key and, in response to the authorization request further including said code, directing the authorization request to the issuer.

Systems and methods for use in promoting hash key account access

An authentication server computing device is provided. The authentication server computing device is configured to receive a transaction request from an audio interface device, generate a first audio file including a first audio transmission, wherein the first audio transmission includes a primary security artifact and at least one secondary security artifact and the primary security artifact is an encoding of a one-time password, store a reference data file including the first audio transmission, transmit the first audio file to a verified user computing device associated with the account identifier, receive a second audio file from the audio interface device, wherein the second audio file includes a second audio transmission, verify the second audio transmission by comparing the second audio transmission to the reference data file including the primary security artifact and the at least one secondary security artifact, and authorize the transaction based on verifying the second audio transmission.

Encoding one-time passwords as audio transmissions including security artifacts

A method for ensuring compliance with data localization rules and regulations for blockchain data values in a blockchain network includes: a local node in a first country receiving a submission for a new blockchain transaction; identifying that the new blockchain transaction involves at least one entity in a foreign country; confirming the new blockchain transaction; transmitting the confirmed blockchain transaction to a foreign node located in the foreign country; generating a new block in the local node that includes the confirmed blockchain transaction; and distributing the new block to other nodes located in the same country as the local node.

Method and system for data localization-compliant blockchain processing and storage

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Rajasthan, India

Jaipal Singh Kumawat