Class / Patent application number | Description | Number of patent applications / Date published |
705069000 | Electronic cash detail (e.g., blinded, divisible, or detecting double spending) | 19 |
20080243703 | VIRTUAL ACCOUNT BASED NEW DIGITAL CASH PROTOCOLS WITH COMBINED BLIND DIGITAL SIGNATURE AND PSEUDONYM AUTHENTICATION - Virtual account based digital cash protocols use a combination of blind digital signatures and pseudonym authentication with at least two pairs of public and private keys. A user is provided with one master pair of private and public keys and as many pseudonym pairs of private and public keys as desired. The resulting virtual account based hybrid protocols combine the advantages of blind digital signature and pseudonym authentication. Blind digital signatures based on the master pair of keys are used to withdraw digital cash from the user's bank account under the user's real identity. A pseudonym pair of keys is used for converting digital cash into virtual account based digital cash by a digital cash issuer. All pseudonyms can be used for spending the virtual account based digital cash. These protocols ensure anonymity when withdrawing digital cash from the user's account under the user's real identity in addition to providing pseudonym authentication when spending virtual cash based digital cash under a pseudonym. | 10-02-2008 |
20110099113 | Virtual Account Based New Digital Cash Protocols With Combined Blind Digital Signature and Pseudonym Authentication - Virtual account based digital cash protocols use a combination of blind digital signatures and pseudonym authentication with at least two pairs of public and private keys. A user is provided with one master pair of private and public keys and as many pseudonym pairs of private and public keys as desired. The resulting virtual account based hybrid protocols combine the advantages of blind digital signature and pseudonym authentication. Blind digital signatures based on the master pair of keys are used to withdraw digital cash from the user's bank account under the user's real identity. A pseudonym pair of keys is used for converting digital cash into virtual account based digital cash by a digital cash issuer. All pseudonyms can be used for spending the virtual account based digital cash. These protocols ensure anonymity when withdrawing digital cash from the user's account under the user's real identity in addition to providing pseudonym authentication when spending virtual cash based digital cash under a pseudonym. | 04-28-2011 |
20110191251 | Token Based New Digital Cash Protocols With Combined Blind Digital Signature and Pseudonym Authentication - Digital cash token protocols use a combination of blind digital signatures and pseudonym authentication with at least two pairs of public and private keys. A user is provided with one master pair of private and public keys and as many pseudonym pairs of private and public keys as desired. The resulting digital cash token based hybrid protocols combine the advantages of blind digital signature and pseudonym authentication. Blind digital signatures based on the master pair of keys are used to withdraw digital cash from the user's bank account under the user's real identity. A pseudonym pair of keys is used for converting digital cash into digital cash tokens by a digital cash issuer. All pseudonyms can be used for spending the digital cash tokens. These protocols ensure anonymity when withdrawing digital cash from the user's account under the user's real identity in addition to providing pseudonym authentication when spending digital cash tokens under a pseudonym. | 08-04-2011 |
20130054471 | Bit Currency: Transactional Trust Tools - Systems and methods are provided for utilizing a digital coin. A bit string is received. The number of bits in the bit string represents a coin value of the digital coin. The individual bit values of the bits of the bit string are used to determine an identity of the digital coin. The identity of the digital coin is validated by a node of an authentication hierarchy. The validation includes comparing bit values of at least a portion of the bits of the bit string to bit values of corresponding bits of known bit strings that represent known issued digital coins. The validation also includes checking that a matching known issued digital coin was not previously redeemed. A digital coin can also be split into multiple digital coins that are each a continuous sequence of bits of the bit string of the original digital coin. | 02-28-2013 |
20140188736 | ELECTRONIC CURRENCY, ELECTRONIC WALLET THEREFOR AND ELECTRONIC PAYMENT SYSTEMS EMPLOYING THEM - Electronic currency consists of data in a form suitable to be stored in a user's data storage medium, comprising information on the data value, identification of each specific set of data or data point, and authentication information suitable to verify that said data has been generated by a specific Currency Issuing Authority (CIA). A method and a system for effecting currency transactions between two users over the Internet or other communication network are also described. | 07-03-2014 |
20150081566 | DIRECT DIGITAL CASH SYSTEM AND METHOD - Methods and systems are provided for the exchange of digital cash employing protocols for various entities to separately certify the validity of the parties, values and transactions while maintaining the anonymity of the buyer or user of the digital cash. Encrypted connections are established allowing various parties to enter into transactions to buy, sell, exchange and recover digital cash using a secure method that protects the personal information and identity of the user. The parties exchange tokens for other value in a transaction of financial settlement between themselves and wherein they are the only parties with knowledge of the amount and description of the transaction and in this way mimics a traditional cash transaction. | 03-19-2015 |
20150302399 | Loading and Disbursement of an Electronic Amount of Money - The invention creates a method for loading an electronic amount of money represented as a random number sequence to a portable data carrier, with a conversion of the random number currency to the data carrier currency, and a disbursement of one or several money unit(s) from a portable data carrier, with a conversion of the data carrier currency to the random number currency. | 10-22-2015 |
20150310424 | CRYPTOGRAPHIC CURRENCY USER DIRECTORY DATA AND ENHANCED PEER-VERIFICATION LEDGER SYNTHESIS THROUGH MULTI-MODAL CRYPTOGRAPHIC KEY-ADDRESS MAPPING - Disclosed is a method and a system of cryptographic currency user directory data and enhanced peer-verification ledger synthesis through multi-modal cryptographic key-address mapping. The method determines that a propagation packet is a transaction of a cryptographic currency and extracts both an IP address and an input key-address to determine that the input key-address is under a suspected control of a user of interest. The method also determines that a relayed key-address communicated between a user of interest and a correspondent is under the suspected control of the user of interest, and/or that and/or an exhibited key-address of a web content is under the suspected control of the user of interest. The suspected control may be added to an enhanced ledger data and/or a user directory data. The system implementing one or more of the methods includes a set of collections servers, a directory server, and a wide area network. | 10-29-2015 |
20150310426 | Bit Currency: Transactional Trust Tools - Systems and methods are provided for utilizing a digital coin in conjunction with Internet transported media so that digital money may real-time, counter-parallel flow relative to the media flow, to enable the recipient to pay the source for its media goods, and also digital money may parallel-flow with the media to pay off hubs and nodes on its way, in order to prioritize its throughput. | 10-29-2015 |
20150324764 | Enabling a User to Transact Using Cryptocurrency - A system and method of enabling a user to transact using cryptocurrency of a value defined in relation to a different medium of exchange or financial instrument is provided. In the method, a request to create a voucher having a face value remaining defined in relation to the medium of exchange or financial instrument is received. A voucher having key data being associated with a voucher cryptocurrency address holding a token amount of cryptocurrency included therein is generated. A transaction ledger is monitored to determine whether a redeeming transaction against the voucher address has occurred against a destination cryptocurrency address. Responsive to a redeeming transaction against the voucher address occurring, an additional amount of cryptocurrency is transferred to the destination address. The additional amount of cryptocurrency being calculated such that the sum of the token and additional amounts substantially matches a cryptocurrency equivalent of the face value of the voucher. | 11-12-2015 |
20150332256 | System and Method for Converting Cryptocurrency to Virtual Assets Whose Value is Substantiated by a Reserve of Assets - A computer-based system converts cryptocurrency into a virtual asset. The system includes a user account database server configured to store data of a plurality of user accounts. The stored data pertains to each user account and indicates an accounting of obligations of the system to the user. The system also includes a cryptocurrency account server configured to receive, from a networked device of a user, a transfer of crypto currency, from an external cryptocurrency account. In response to receipt of such a transfer, the cryptocurrency account server is configured to update the data pertaining to the obligations of the system to the user. The system also includes a user interface server configured to receive a request from the user for conversion of cryptocurrency to an asset. In response to receipt of the request, the system updates the data pertaining to the user account of the user. | 11-19-2015 |
20150332395 | Cryptographic Currency For Securities Settlement - The present disclosure is directed to security settlement in financial markets and cryptographic currencies. Particular portions of the present disclosure are directed to a cryptographic currency protocol and to a cryptographic currency that includes a positional item. The cryptographic currency protocol supports a virtual wallet that, in various embodiments, is a security and cash account for storing and managing the cryptographic currency. Opening a transaction via the virtual wallet to transfer the cryptographic currency is a strong guarantee of the availability of funds in the virtual wallet because, e.g., funds are not transacted unless the commit phase is successful. | 11-19-2015 |
20150363768 | SYSTEM AND METHOD FOR RENDERING VIRTUAL CURRENCY RELATED SERVICES - Technique introduced here relates to virtual currency related services, and more specifically, to tools for providing crypto or other digital currency (e.g. bitcoin) related services, including bitcoin DNS service, sending bitcoins over social media communication networks, a bitcoin trading platform and secure storage services for bitcoin. | 12-17-2015 |
20160005032 | METHOD AND SYSTEM OF PROVIDING AUTHENTICATION OF USER ACCESS TO A COMPUTER RESOURCE VIA A MOBILE DEVICE USING MULTIPLE SEPARATE SECURITY FACTORS - A method and system of authenticating a computer resource such as an application or data on a mobile device uses a contactless token to provide multi-factor user authentication. User credentials are stored on the token in the form of private keys, and encrypted data and passwords are stored on the device. When application user requires access to the resource an encrypted password is transmitted to and decrypted on the token using a stored private key. An unencrypted data encryption key or password is then transmitted back to the device under the protection of a cryptographic session key which is generated as a result of strong mutual authentication between the device and the token. | 01-07-2016 |
20160042345 | TOKEN-BASED TRANSACTION SYSTEM AND METHOD TO FACILITATE NON-CASH PAYMENTS WITHOUT USING PERSONALLY IDENTIFIABLE INFORMATION DATA - A system and method for token-based transactions to facilitate non-cash payments without using personally identifiable information data is disclosed. The system generally includes at least one computer processor and a module, which when executed by the at least one computer processor, causes the computer processor to exchange data representative of a request for identification with a computing device of a Payer Entity. The computer processor generates a signed Digital Debt Obligation, including purchase metadata comprising currency and at least one preferred payment provider, and sends the signed digital debt to the computing device of the Payer Entity. The computer processor receives data representing an approved Digital Debt Obligation from the computing device of the Payer Entity and verifies the approved Digital Debt Obligation. The computer processor sends data representative of the approved Digital Debt Obligation to a Payment Processor and queries the Payment Processor for supported payment methods. The computer processor then submits the approved Digital Debt Obligation to a payment provider's service entry point to complete the transaction. | 02-11-2016 |
20160055455 | Project Governance - A computer-implemented method and system for connecting authenticated persons, willing to pay for crowd-sourced answers to technical problems, to authenticated subject matter experts willing to sell answers to these problems in return for a variety of items of value; the system comprising a secure repository for questions posed by users and answers from other users, an innovation engine for selecting subject matter experts and facilitating collaborative solutions, a project governance engine configured to optimize the development path, a pricing engine to determine the market value of the answers, a marketplace engine for exchanging items and services of value, and means for users to communicate with other users or groups of users. | 02-25-2016 |
20160140653 | VIRTUAL CURRENCY BANK - Described herein are embodiments of a virtual currency bank that includes a sealed container that includes an exterior surface and defines an interior, a QR code, located on the exterior associated with a public key that is tied to a virtual currency account, in that the QR code may be scanned to access the public key in order to add funds to the virtual currency account, and a private key, located in the interior of the sealed container and associated with the public key, in that the private key must be accessed and read to remove or spend funds from the virtual currency account. The sealed container is sealed in a manner so that the private key cannot be accessed without breaking the seal or the container in a manner that cannot be obscured or undone. | 05-19-2016 |
20160148198 | SECURE CRYPTO CURRENCY POINT-OF-SALE (POS) MANAGEMENT - A Point-Of-Sale (POS) terminal is equipped to process crypto currencies for transactions. The POS terminal generates a transaction-based digital wallet for a given transaction to receive a crypto currency payment for that given transaction. The transaction-based digital wallet, funded with the crypto currency for the given transaction, is transferred to a retailer's server where the crypto currency is transferred from the transaction-based digital wallet to a retailer's digital wallet for eventual exchange to a government issued currency. | 05-26-2016 |
20160203477 | CRYPTOGRAPHIC SECURITY FOR ELECTRONIC TRANSACTIONS | 07-14-2016 |