Abstract: A system and method for preventing hacking of blockchain is proposed.

Abstract: An electronic device including a processor that generates first identification data including a unique value corresponding to an external device, transmits an authentication request including information on a blockchain application and the first identification data to the external device, receives, a random value generated from the external device if authentication is successful, transmits a signature request including the random value and information on a transaction to the external device, generates a first hash value for the transaction, receives a second hash value for the transaction, which is generated based on verification of the random value, and signature data obtained by performing digital signature to the transaction with a private key stored in the external device, and determines whether to transmit the transaction to the blockchain network, based on the first hash value and the second hash value.

Abstract: A user may provide a financial card to an automated teller machine (ATM) or point of sale (POS) terminal and may be authenticated by providing a gesture and/or an image selection via a mobile device to the ATM or the POS. The gesture and/or image selection may be provided using a touchscreen of the mobile device. The gesture and/or image provided by the user via the mobile device may be compared to a stored gesture and/or image provided by the user during an earlier registration of the financial card. If there is a match between the gesture and/or image provided by the user via the mobile device and the previously stored gesture and/or image, then the user is authenticated and may access an account associated with the financial card.

Abstract: A decentralized node may generate a network of decentralized nodes individually configured to store, receive, and transmit data based on rules associated with the decentralized nodes. A decentralized node may associate a decentralized identity of an entity with a select decentralized node of the decentralized nodes. A decentralized node may present a user interface including one or more access controls at a edge device, the access controls configuring rules to be applied to third-party access and modification of decentralized identity data associated within the decentralized identity of the entity and stored at the selected decentralized node. A decentralized node may identify the decentralized identity data accessible to the select decentralized node based on the rules. A decentralized node may store the decentralized identity data within the decentralized identity associated with the entity at the select decentralized node.

Abstract: The invention relates to blockchain technologies such as the Bitcoin blockchain, and the tokenisation of assets or entities. It is particularly suited for implementing a payroll on a blockchain platform and comprises a method (100) and system (1) of transferring cryptocurrency from a first node (3) to a second node (7). Both nodes (3, 7) are associated with a payroll and have a respective asymmetric cryptography pair, each pair including a master private key and a master public key. Respective additional private and public keys may be determined based on the master private key, master public key and a generator value at each node. The additional private and public keys may form a hierarchical structure. A common secret may be determined at each of the nodes (3, 7) based on the additional private and public keys. The common secret may be used to securely transmit confidential information across a communications network (5).

Abstract: A mobile device with a first transceiver, a second transceiver, one or more processors, and memory bridges communications between an offline retail machine with a short-range communication capability and a remote server by obtaining via the first transceiver a single-use request code from an information packet broadcast by the offline retail machine; transmitting via the second transceiver the single-use request code to a remote server; obtaining via the second transceiver from the remote server a grant token including the single-use request code; detecting a trigger condition for initiating provision of a product or service by the offline retail machine; and in response to detecting the trigger condition, initiating performance of the provision of the product or service by transmitting the grant token to the offline retail machine via the first transceiver.

Abstract: A method is provided including: receiving, by a server from a user device, a cryptogram of a contactless card, wherein the user device receives a payment request message from a merchant device, and the user device receives the cryptogram from a contactless card upon taping the contactless card to the user device by a user prompted by the payment request message; validating and decrypting, by the server, the cryptogram; extracting, by the server, from the decrypted cryptogram a unique customer identifier associated with the user; verifying, by the server, the unique customer identifier; retrieving, by the server from a database, account information of the user; and calling, by the sever, one or more application programming interfaces (APIs) of the merchant device to make a payment in response to the payment request message; and provisioning, by the server, the account information to the merchant device via the APIs.

Abstract: A method includes a first user device generating an interaction message. The interaction message includes an amount, an expiry time, and a condition. The first user device provides the interaction message to a second user device. The second user device creates a witness that satisfies the condition and provides the witness to the first user device. The first user device receives the witness from the second user device. The first user device verifies that the witness satisfies the condition. If the witness satisfies the condition and is received prior to the expiry time, the first user device signs the witness using a first user device private key to obtain a signed witness. The first user device provides the signed witness to the second user device. The second user device verifies a signature of the signed witness and proceeds with obtaining the amount.

Abstract: Devices, systems, and methods enabling parties with little trust or no trust in each other to enter into and enforce value transfer agreements conditioned on input from or participation of a third party, over arbitrary distances, without special technical knowledge of the underlying transfer mechanism(s), optionally affording participation of third-party mediators, substitution of transferors and transferees, term substitution, revision, or reformation, etc. Such value transfers can occur reliably without involving costly third-party intermediaries who traditionally may otherwise be required, and without traditional exposure to counterparty risk.

Abstract: A network node in a peer-to-peer network of nodes includes at least one processor, at least one memory, and at least one network interface. The at least one processor is configured to receive a request to transfer a security token and execute a plurality of compliance rules associated with the security token. At least one of the compliance rules is implemented using at least one smart contract. The at least one smart contract references a global registry. The at least one processor is also configured to transfer the security token based on the execution of the compliance rules. The global registry includes personally identifiable information (PII) hash(es) for each of at least one investor associated with the transfer of the security token. The hashes are committed to the distributed ledger and updated when PII of a respective one of the at least one investor changes.

Abstract: A transaction card includes a near-field communication (NFC) component, a security component, a wireless component, one or more memories, and one or more processors communicatively coupled to the one or more memories. The device receives a signal from a user device attempting to access a secure application, and energizes the NFC component based on the signal received from the user device. The device causes the security component to generate an encrypted code based on the NFC component being energized, and provides, via the security component, the encrypted code to the wireless component. The device provides, via the wireless component, the encrypted code to the user device to permit the user device to utilize the encrypted code as authentication for accessing the secure application.

Abstract: Techniques are presented for securely transmitting a output script or information associated with a payroll and a user between a first node and a second node. The method comprises: determining a symmetric-key based on a common secret, based on a first node second private key and a second node second private key, wherein the second node has the same common secret based on a first node second public key and a second node second private key; encrypting at least part of the output script or information associated with the payroll and the second node with the symmetric-key, to an encrypted output script or encrypted information associated with the payroll and the second node; and sending the encrypted output script or encrypted information associated from the first node to the second node.

Abstract: Disclosed herein are systems, methods, and devices for transaction methods for mobile wallet operations in a casino. Various embodiments are directed to applying funds to a user's mobile wallet by transactions at a kiosk, cage, Peripheral System, or other system of the casino. Embodiments are also directed to applying credit to an electronic gaming machine of the casino. Embodiments are also directed to returning or redeeming credit from an electronic gaming machine of the casino to the user. Embodiments are also directed to transferring credit from a mobile wallet to external funds.

Abstract: A system and method to permit brand owners to maintain control over their valuable brands in a virtual economy. The system and method feature a mark to permit legitimate branded items to be identified. Optionally and preferably, the system and method also enable non-legitimate, “fake” or fraudulent branded items to be identified. Such branded items include but are not limited to, any type of trademark, including without limitation any type of word mark, color, logo, slogan or any other suitable type of trademark; any object designed by or associated with the brand; and any item featuring any component or material that is trademarked, patented or copyrighted.

Abstract: A device may receive an indication that an ATM transaction is to be conducted, display prompt(s) for a user to input user authentication credential information and to select an ATM transaction type, detect user input(s) that include a user authentication credential and a selection of a particular ATM transaction type, and receive, from an ATM device, a request to establish a communication session. The ATM device may include a sync button to initiate communicative coupling of the ATM device and the user device. The request may be based on a user selection of the sync button. The device may communicatively couple to the ATM device, and provide, to the ATM device, the user authentication credential and data regarding the particular ATM transaction type to cause the ATM device to perform the ATM transaction. The device may display information regarding the ATM transaction.

Abstract: Introduced here is a new program that was developed to provide privacy for data stored on a blockchain. This new program was designed to be deployed on the blockchain as an extension to the existing program that allows non-confidential transfers of funds. This new can work in conjunction with the existing program to permit users to conduct confidential and non-confidential transactions as necessary based on the sensitivity of the data involved.

Abstract: An example system for digital wallet management including one or more databases and a computing system is described. The databases are configured to store data corresponding to purchase history of a user, the purchase history including payment account information for a first transaction captured through a reader at a point-of-sale system at the time of the first transaction and an identifier associated with the first transaction. The computing system receives a machine-readable element having the identifier associated with the first transaction encoded therein, searches the databases to determine the payment account information associated with the identifier, generates a prompt requesting confirmation of adding the payment account information for the first transaction to a digital wallet, receives positive confirmation to the generated prompt, and populates the digital wallet with the payment account information.

Abstract: Systems, methods, apparatuses, and computer-readable media for secure generation of one-time passcodes using a contactless card. In one example, an operating system (OS) of a device may receive a uniform resource locator (URL) and a cryptogram from a contactless card. The OS may launch an application associated with the URL. The application may transmit the cryptogram to an authentication server. The application may receive a decryption result from the authentication server indicating the authentication server decrypted the cryptogram. Based on the decryption result, the application may request an OTP. The processor may receive an OTP from an OTP generator. The application may receive an input value and compare the input value to a copy of the OTP. The application may determine that the comparison results in a match, and display, based on the determination that the comparison results in the match, one or more attributes of the account.

Abstract: In an embodiment, the a method is provided. The method includes receiving forecast data in a database with an associated window value. The method also includes accessing data based on associated window values. The method further includes comparing the data accessed based on associated window values to other data.

Abstract: Embodiments generally relate to the field of reward processing, and more particularly, systems, methods, and computer readable media for digital reward processing utilizing distributed ledger technology. Distributed ledger technology is utilized wherein distributed ledgers are stored on a plurality of node computing devices, the distributed ledgers including sequential entries that are cryptographically linked to one another.