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Wall Street & The Blockchain-Crypto Dance: Shake 'N Bake
Block-cipher cryptographic system with chaining
United States Patent 4078152
Abstract:
A Block-Cipher Cryptographic System utilizing a unique user supplied key to control the cryptographic function and including means for modifying an input data block prior to performing a key-controlled transformation operation thereon. Said means includes means for extracting a segment of data utilized in a prior cryptographic transformation of the system and combining said segment with the input data block. The means for combining comprises a transformation which is a discrete valued function which in the preferred embodiment is an exclusive-or. In the preferred embodiment of the invention a block of ciphertext data is combined with the just succeeding input data block by an exclusive-or operation prior to the key-controlled transformation operation which produces said ciphertext blocks.
A means for detecting and cryptographically transforming short blocks of data is also disclosed wherein an input short data block is combined in a mathematically invertible operation with a block of data which is passed through said key-controlled block cipher cryptographic subsystem prior to said combination. The so transformed short block is then output as a short block in cryptographically modified form.
Inventors:
Tuckerman III, Louis Bryant (Briarcliff Manor, NY)
Assignee:
International Business Machines Corporation (Armonk, NY)
Filing Date:
04/26/1976
~~~
Message verification and transmission error detection by block chaining
United States Patent 4074066
Abstract:
A message transmission system for the secure transmission of multi-block data messages from a sending station to a receiving station.
The sending station contains cryptographic apparatus operative in successive cycles of operation during each of which an input block of clear data bits is ciphered under control of an input set of cipher key bits to generate an output block of ciphered data bits for transmission to the receiving station. Included in the cryptographic apparatus of the sending station is means providing one of the inputs for each succeeding ciphering cycle of operation as a function of each preceding ciphering cycle of operation. As a result, each succeeding output block of ciphered data bits is effectively chained to all preceding cycles of operation of the cryptographic apparatus of the sending station and is a function of the corresponding input block of clear data bits, all preceding input blocks of clear data bits and the initial input set of cipher key bits.
Inventors:
Ehrsam, William F. (Hurley, NY)
Meyer, Carl H. W. (Kingston, NY)
Smith, John L. (Woodstock, NY)
Tuchman, Walter L. (Woodstock, NY)
Filing Date:
04/26/1976
Assignee:
International Business Machines Corporation (Armonk, NY)
~~~
METHOD AND SYSTEM FOR TRANSFERRING TRUST ACROSS BLOCK CHAIN SEGMENTS
United States Patent Application 20170344580
Abstract:
A method for generating a segmented blockchain includes: storing a first blockchain, the blockchain being comprised of blocks including a recent block, the recent block including a corresponding block header and transaction values; generating a recent hash value via hashing the corresponding block header; writing a terminal block to the first blockchain, the terminal block including a terminal block header comprised of the recent hash value, an activated terminal flag, and a forward reference identifier; generating a terminal hash value via hashing the terminal block header; generating a second blockchain, the second blockchain being comprised of a starting block, the starting blocking including a starting block header comprised of the terminal hash value and an activated starting flag; and transmitting the terminal block and the second blockchain to one or more computing devices associated with the first blockchain.
Inventors:
King, David J. (Guildford, GB)
Filing Date:
05/27/2016
Assignee:
MasterCard International Incorporated (Purchase, NY, US)
~~~
METHOD AND SYSTEM FOR AN EFFICIENT CONSENSUS MECHANISM FOR PERMSSIONED BLOCKCHAINS USING BLOOM FILTERS AND AUDIT GUARANTEES
United States Patent Application 20170344987
Abstract:
A method for addition of a block to a permissioned blockchain using efficient consensus includes: storing a blockchain; receiving transaction messages having transaction values from consensus nodes; generating a Merkle root for the transactions messages using transaction references; generating a proposed block header having the Merkle root and a hash of the header of the most recently added block in the blockchain; hashing the proposed block header; transmitting a proposal message having a digital signature and the hashed proposed block header to auditing nodes; receiving a response message accepting the digital signature from a majority of auditing nodes; transmitting an accept message to the auditing nodes; transmitting a confirmation message to the consensus nodes including the hashed proposed block header and digital signature; and writing a new block to the blockchain having the transaction values from the transaction messages and a header including the proposed block header and digital signature.
Inventors:
Davis, Steven Charles (Saint Peters, MO, US)
Filing Date:
05/24/2016
Assignee:
MasterCard International Incorporated (Purchase, NY, US)
~~~
METHOD AND SYSTEM FOR BLOCKCHAIN VARIANT USING DIGITAL SIGNATURES
United States Patent Application 20170180134
Abstract:
A method for using digital signatures for signing blockchain transactions includes: generating a domain key pair comprising a domain private key and a domain public key, wherein the domain public key is signed after generation; receiving a plurality of member public keys, wherein each member public key is received from an associated member of a blockchain network and is a public key in a key pair comprising the member public key and a member private key corresponding to the associated member; signing each member public key using the domain private key; receiving a transaction block from a specific member of the blockchain network, wherein the transaction block includes a plurality of blockchain transaction values and a hash signed using the member private key corresponding to the specific member; signing the received transaction block using the domain private key; and transmitting the signed transaction block.
Inventors:
King, David J. (Guildford, GB)
Filing Date:
12/21/2015
Assignee:
MasterCard International Incorporated (Purchase, NY, US)
~~~
BLOCKCHAIN-BASED IDENTITY AND TRANSACTION PLATFORM
WIPO Patent Application WO/2017/066002
Abstract:
Systems, methods, and computer media implementing blockchain-based identity and transaction platforms are described herein. Identity information, such as a photo, for a person can be encrypted and stored in a blockchain as part of enrolling the person as a user in a blockchain- based identity and transaction platform. Trust relationships can be formed between the user and other users, and records of the trust relationships can also be stored in the blockchain. Transactions between the user and other users with whom the user has formed a trust relationship can also be stored in the blockchain. The transactions can be authorized, for example, through a multi-stage verification process that accesses information stored on the blockchain. The transactions and identity information, along with other information, contribute to an economic identity of the person.
Assignee:
BANQU, INC. (4100 Heatherton Place, Minnetonka, MN, 55345, US)
~~~
METHOD AND SYSTEM FOR OFFLINE BLOCKCHAIN EXCHANGES
United States Patent Application 20170236121
Abstract:
A method for conducting an offline data exchange associated with a blockchain includes: storing a structured data set associated with a blockchain network, the data set including a network identifier, unspent output hash, output index, output value, and key pair; receiving the network identifier and a transaction amount from a point of sale; validating the structured data set as including the network identifier and an output value greater than or equal to the transaction amount; transmitting the unspent output hash and output index to the point of sale; receiving a destination address from the point of sale; generating transaction data including the destination address and a payment amount based on the transaction amount; and transmitting the transaction data to the point of sale.
Inventors:
Lyons, Garry (Dublin 16, IE)
Davis, Steven Charles (Saint Peters, MO, US)
Filing Date:
02/11/2016
Assignee:
MasterCard International Incorporated (Purchase, NY, US)
~~~
METHOD AND SYSTEM FOR LINKAGE OF BLOCKCHAIN-BASED ASSETS TO FIAT CURRENCY ACCOUNTS
United States Patent Application 20160342976
Abstract:
A method for managing fractional reserves of blockchain currency includes: storing, in a first central account, a fiat amount associated with a fiat currency; storing, in a second central account, a blockchain amount associated with a blockchain currency; storing a plurality of account profiles, each profile including a fiat currency amount, blockchain currency amount, account identifier, and address; receiving a transaction message associated with a payment transaction, the message being formatted based on one or more standards and including a plurality of data elements, including a data element reserved for private use including a specific address and a transaction amount; identifying a specific account profile that includes the specific address included in the data element in the received transaction message; and updating the blockchain currency amount included in the identified specific account profile based on the transaction amount included in the data element in the received transaction message.
Inventors:
Davis, Steven Charles (Saint Peters, MO, US)
Filing Date:
05/21/2015
Assignee:
MasterCard International Incorporated (Purchase, NY, US)
~~~
METHOD AND SYSTEM FOR FRAUD CONTROL OF BLOCKCHAIN-BASED TRANSACTIONS
WIPO Patent Application WO/2016/186872
Abstract:
A method for Sinking blockchain transactions to privately verified identities includes: storing account profiles, each profile including data related to a transaction account including an account identifier and account data; receiving a transaction message, the message including a first data element configured to store a personal account number, a second data element configured to store a merchant identifier, and a third data element configured to store a blockchain network identifier; identifying a first account profile that includes the personal account number; identifying a second account profile that includes the merchant identifier; receiving a transaction notification, the notification indicating a transaction processed using a blockchain network associated with the blockchain network identifier and including a transaction identifier and an address identifier associated with the first or second account profile; and storing a linkage between the transaction identifier and the address identifier, the personal account number, and/or the merchant identifier.
Inventors:
DAVIS, Steven, Charles (128 Glenallen Drive, Saint Peters, MO, 63376, US)
METHOD AND SYSTEM FOR INTEGRATION OF MARKET EXCHANGE AND ISSUER PROCESSING FOR BLOCKCHAIN-BASED TRANSACTIONS
WIPO Patent Application WO/2016/186869
Abstract:
A method for authorization of a blockchain transaction includes: storing account profiles, each profile including an account identifier, fiat amount, and blockchain amount; receiving a transaction message, the transaction message being formatted based on transaction message standards and including a first data element that includes a specific account identifier and a second data element reserved for private use that includes a network identifier and transaction amount; identifying a specific account profile that includes the specific account identifier; identifying a risk value based on the transaction amount and at least one of: the fiat amount and blockchain amount; determining authorization of a transaction based on the identified risk value; modifying the transaction message based on the authorization determination; and transmitting the modified transaction message.
METHOD AND SYSTEM FOR PROCESSING BLOCKCHAIN-BASED TRANSACTIONS ON EXISTING PAYMENT NETWORKS
WIPO Patent Application WO/2016/186873
Abstract:
A method for authorizing a blockchain-based transaction includes: receiving a transaction request, the request including a network identifier associated with a blockchain network, a transaction amount, and one of: a public key and an address identifier; generating an address identifier using at least the public key included in the received transaction request and one or more hashing algorithms if the received transaction request does not include an address identifier; generating a transaction message, the message including a first data element configured to store a transaction amount and a second data element reserved for private use, and the first data element includes a zero value and the second data element includes at least (i) the network identifier or an encoded value based on the network identifier, (ii) the address identifier, and (iii) the transaction amount; and transmitting the transaction message to a financial institution using a payment network.
Inventors:
DAVIS, Steven, Charles (128 Glenallen Drive, Saint Peters, MO, 63376, US)
SYSTEMS AND METHODS FOR TRADING, CLEARING AND SETTLING SECURITIES TRANSACTIONS USING BLOCKCHAIN TECHNOLOGY
WIPO Patent Application WO/2017/007806
Abstract:
The present invention relates to a securities trading system that utilizes a distributed blockchain ledger to conduct security transactions. Users are provided with cryptographic wallets that enable the users to access a peer-to-peer network of computing nodes on which the distributed blockchain ledger is managed. The securities made available through the network may be stored directly on the blockchain ledger itself. Smart contracts may be utilized to transfer the securities among the users and to verify that all transactions are in compliance with applicable regulatory rules and other restrictions.
Inventors:
MOLINARI, Vincent (12 Wildwood Drive, Laurel Hollow, New York, 11791, US)
LATONA, Joe (19 Wedgewood Court, Monroe Township, New Jersey, 08831, US)
PALLOTTA, Christopher J. (300 Mercert Street, Apt. 8JNew York, New York, 10003, US)
FRIEDMAN, Clifford H. (10 Castle Harbor Road, Huntington Bay, New York, 11743, US)
Filing Date:
07/06/2016
Assignee:
OUISA, LLC (100 Wall Street, Suite 501New York, New York, 10005, US)
~~~
SYSTEMS AND METHODS FOR DETECTING AND RESOLVING DATA INCONSISTENCIES AMONG NETWORKED DEVICES USING HYBRID PRIVATE-PUBLIC BLOCKCHAIN LEDGERS
United States Patent Application 20170046693
Abstract:
The disclosed embodiments include computerized systems and methods that generate secured blockchain-based ledger structures that facilitate event-based control of tracked assets. In one embodiment, an apparatus associated with a centralized authority of the secured blockchain-based ledger may detect an occurrence of a triggering event, and may access and decrypt a set of rules hashed into the secured blockchain-based ledger using a confidentially-held master cryptographic key. The apparatus may identify a rule associated with the detected event, and perform one or more operations consistent with the rule. In some aspects, the detected event may correspond to a dispute involving one or more terms or conditions of a contractual agreement between a first party and one or more second parties, and the performed operations may resolve the dispute.
Inventors:
Haldenby, Perry (Mississauga, CA)
Mahadevan, Rajan (Mississauga, CA)
Lee, John Jong Suk (Waterloo, CA)
Chan, Paul Mon-wah (Markham, CA)
Del Vecchio, Orin (Richmond Hill, CA)
Filing Date:
11/10/2015
Assignee:
The Toronto-Dominion Bank (Mississauga, CA)
~~~
INFORMATION TRANSACTION INFRASTRUCTURE
United States Patent Application 20170221022
Abstract:
A method of transferring information with verification from a first party to a second party using suitably programmed computing apparatus is described. Information from a first party private address to a first party public address. This information is then sent from the first party public address to a second party address. The information is also provided for public recordal on a block of a block chain for verification. The first party private address is not communicated to the second party but the first party public address is communicated to the second party. This approach is particularly suitable for transfer of cryptocurrency, as it allows for an effective refund mechanism. Computing apparatus and application software adapted to implement this approach is also described.
Inventors:
Goloshchuk, Vladimir (Purchase, NY, US)
Filing Date:
01/27/2017
Assignee:
Mastercard International Incorporated (Purchase, NY, US)
~~~
DIGITAL ASSET CONVERSION
WIPO Patent Application WO/2017/132333
Abstract:
A method of converting digital assets into a transaction currency is described that it suitable for use in a transaction system that is not adapted for transactions using the digital assets. The digital assets are stored so that they can be used with one or more exchanges adapted for conversion of the digital assets into the transaction currency. A balance in the transaction currency is established for use by a payment device. Rules are established for maintaining the transaction currency balance. When required by the rules for maintaining the transaction currency balance, digital assets are converted into the transaction currency at the one or more exchanges for maintaining the transaction currency balance in the transaction currency for use by the payment device. A suitable service is also described.
Inventors:
GOLOSCHUK, Vladimir (2000 Purchase Street, Purchase, NY, 10577-2509, US)
METHOD AND SYSTEM FOR CREDITS IN A SOCIAL NETWORK
WIPO Patent Application WO/2017/031142
Abstract:
A method for verification of user identity includes: storing account profiles, each profile including data related to a user account of a non-financial institution (NFI) entity including an account identifier and an address; receiving a transaction request, the request including a specific account identifier and a transaction amount; identifying an account profile including the specific account identifier; generating a controlled payment number associated with a transaction account of the NFI entity; transmitting a notification to a third party entity including the specific account identifier; transmitting the controlled payment number to a user associated with the user account related to the specific account profile; receiving a data message from the third party entity including the specific account identifier and identification data associated with the user; and updating the specific account profile to include the controlled payment number, the identification data, and a spending limit based on the transaction amount.
Inventors:
BHAGAT, Deepankar (15632 Summer Lake Drive, Chesterfield, MO, 63017, US)
REED, Derek, Ryan (30080 Halls Hideaway, Wright City, MO, 63390, US)
BUGH, Jill, Boyd (14247 Manderleigh Woods Drive, Town And Country, MO, 63017, US)
SAVOYE, Mark, N. (100 East Hartsdale Avenue, Apt. 4JEHartsdale, NY, 10530, US)
REWRITABLE BLOCKCHAIN
Document Type and Number:
United States Patent Application 20170338957
Abstract:
A system includes circuitry for rewriting blockchains in a non-tamper-evident or tamper-evident operation using a key secret held by a trusted party. The blockchains may include a series of blocks secured by a chameleon hash that may prevent non-tamper-evident rewrites by non-trusted parties that are not in possession of the key secret. Rewrite circuitry of the system may determine randomness data from the chameleon hash and altered data from a rewrite. The randomness data may be written to the randomness field of a block overwritten with the altered data such that the block remains coding-consistent with the chameleon hash and other blocks in the blockchain.
Inventors:
Ateniese, Giuseppe (Hoboken, NJ, US)
Chiaramonte, Michael T. (New York, NY, US)
Treat, David (Wilmington, MA, US)
Magri, Bernardo (Rome, IT)
Venturi, Daniele (Rome, IT)
CRYPTOLOGIC REWRITABLE BLOCKCHAIN
Document Type and Number:
WIPO Patent Application WO/2017/202759
Abstract:
A cryptologic system includes circuitry for rewriting blockchains in a non-tamper-evident or tamper-evident operation using a key secret held by a trusted party. The blockchains may include a series of blocks secured by a chameleon hash that may prevent non-tamper-evident rewrites by non-trusted parties that are not in possession of the key secret. Rewrite circuitry of the system may determine randomness data from the chameleon hash and altered data from a rewrite. The randomness data may be written to the randomness field of a block overwritten with the altered data such that the block remains coding-consistent with the chameleon hash and other blocks in the blockchain.
Inventors:
ATENIESE, Giuseppe (1125 Maxwell Lane, Apt. 430Hoboken, New Jersey, 07030, US)
CHIARAMONTE, Michael T. (117 E. 77th St, Apt. 9CNew York, New York, 10075, US)
TREAT, David (27 Lost Mine Place, Ridgefield, Connecticut, 06877, US)
MAGRI, Bernardo (Via Alberto Fredda 29, Rome, 00139, IT)
VENTURI, Daniele (Via Minerbio 72, Rome, 00127, IT)
Filing Date:
05/23/2017
Assignee:
ACCENTURE GLOBAL SOLUTIONS LIMITED (3 Grand Canal Plaza, Grand Street Upper, Dublin 4, IE)
GSC SECRYPT, LLC (1450 Garden Street, Apt. N503Hoboken, New Jersey, 07030, US)
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DISTRIBUTED KEY SECRET FOR CRYPTOLOGIC REWRITABLE BLOCKCHAIN
Document Type and Number:
WIPO Patent Application WO/2017/202757
Abstract:
A cryptologic system includes circuitry for rewriting blockchains in a non-tamper-evident or tamper-evident operation using a key secret held in portions by multiple individually untrusted parties. The blockchains may include a series of blocks secured by integrity codes that may prevent non-tamper-evident rewrites by non-trusted parties that are not in possession of the key secret or individually-untrusted parties in possession of only a portion of the key secret. In some cases, multiple individually-untrusted parties may combine their portions into the key secret. As a group, the multiple individually-untrusted parties may perform non-tamper-evident operation with respect to at least one integrity code within the blockchain.
Inventors:
ATENIESE, Giuseppe (1125 Maxwell Lane, Apt. 430Hoboken, New Jersey, 07030, US)
CHIARAMONTE, Michael T. (117 E. 77th St, Apt. 9CNew York, New York, 10075, US)
TREAT, David (27 Lost Mine Place, Ridgefield, Connecticut, 06877, US)
MAGRI, Bernardo (Via Alberto Fredda 29, Rome, 00139, IT)
VENTURI, Daniele (Via Minerbio 72, Rome, 00127, IT)
Filing Date:
05/23/2017
Assignee:
ACCENTURE GLOBAL SOLUTIONS LIMITED (3 Grand Canal Plaza, Grand Street Upper, Dublin 4, IE)
GSC SECRYPT, LLC (1450 Garden Street, Apt. N503Hoboken, New Jersey, 07030, US)
~~~
Social Aggregating, Fractionally Efficient Transfer Guidance, Conditional Triggered Transaction, Datastructures, Apparatuses, Methods and Systems
United States Patent Application 20170048234
Abstract:
The Social Aggregating, Fractionally Efficient Transfer Guidance, Conditional Triggered Transaction, Datastructures, Apparatuses, Methods and Systems (“SOCOACT”) transforms smart contract request, crypto currency deposit request, crypto collateral deposit request, crypto currency transfer request, crypto collateral transfer request inputs via SOCOACT components into transaction confirmation outputs. An aggregated crypto 2-party transaction trigger entry that specifies at least one associated aggregated blockchain oracle may be instantiated. A first encrypted a token may be obtained from a first associated aggregated blockchain oracle. A second encrypted token may be obtained from a second associated aggregated blockchain oracle. It may be determined that an instantiated aggregated crypto 2-party transaction trigger entry unlock event occurred, and unlocking the instantiated aggregated crypto 2-party transaction trigger entry and providing the first encrypted token to a second party and providing the second encrypted token to a first party may be facilitated.
Inventors:
Lohe, Timothy (Boston, MA, US)
Stern, Hadley Rupert (West Newton, MA, US)
Chawla, Raghav (Cambridge, MA, US)
Parsons, Christopher Scott (Mansfield, MA, US)
Mcguire, Thomas Charles (Galway, IE)