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公开(公告)号：US20210233071A1
公开(公告)日：2021-07-29
申请号：US16077999
申请日：2017-02-16
IPC分类号： G06Q20/38 , H04L9/30 , G06F16/22 , H04L9/32 , G06F16/23 , G06Q20/22 , G06Q20/06 , G06Q20/12 , G06Q50/16
摘要： The invention provides a secure method for exchanging entities via a blockchain. The invention incorporates tokenisation techniques, and also techniques for embedding metadata in a redeem script of a blockchain transaction. Embodiment(s) provide a method of: generating a first script, the first script comprising: a first set of metadata associated with a first invitation for the exchange of a first entity by a first user, the first set of metadata comprising an indication of the first entity to be offered for exchange and a first location condition for the exchange, a first user public key (P1A) associated with the first user, wherein the first user public key (P1A) is part of an asymmetric cryptographic pair comprising the first user public key (P1A) and a first user private key (V1A). The script may further comprise a first third-party public key (P1T) associated with a first third-party, wherein the first third-party public key (P1T) is part of an asymmetric cryptographic pair comprising the first third-party public key (P1T) and a first third-party private key (V1T) The method further comprises the steps of hashing the first script to generate a first script hash and publishing the first script and the first script hash on a distributed hash table (DHT).
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62.发明申请公开(公告)号：US20210216623A1
公开(公告)日：2021-07-15
申请号：US17219674
申请日：2021-03-31
IPC分类号： G06F21/52 , H04L9/00 , G06Q20/06 , H04L9/32 , G06F21/64 , G06N7/00 , G06Q20/38 , H04L9/06 , H04L9/08
摘要： This invention relates generally to blockchain implementations and is suited for, but not limited to, use with the Bitcoin blockchain. It can be used for the implementation of automated processes such as device/system control, process control, distributed computing and storage and others. The invention provides an event detecting, monitoring and/or counting mechanism. The event may be, for example, a vote, decision or selection which is made by a given entity. The invention provides a counting solution in which a computing resource, running simultaneously and in parallel to the blockchain, manages a loop-based operation. The computing resource continuously monitors the state of the blockchain as well as any other off-blockchain input data or source. The execution of the loop is influenced by the state of the blockchain. Each iteration of the loop that is executed by the computing resource is recorded in a transaction that is written to the blockchain. It is stored as a hash within the transaction's metadata. If the computing resource finds a transaction which contains a hash relating to the loop it accesses the relevant portion of code. The loop contains a conditional statement which enables the computing resource to decide which action to take. The condition may be dependent upon the state of the blockchain or any other data source. The action can be any type of action, on or off the blockchain. Thus, the combination of the computing resource and blockchain provide a Turing-complete solution.
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公开(公告)号：US20200344071A1
公开(公告)日：2020-10-29
申请号：US16926583
申请日：2020-07-10
摘要： A method of encrypting data at an electronic device where the electronic device is associated with a key device. Each device is associated with an asymmetric cryptography pair, each pair including a first private key and a first public key. Respective second private and public keys may be determined based on the first private key, first public key and a deterministic key. A secret may be determined based on the second private and public keys. The data at the electronic device may be encrypted using the determined secret or an encryption key that is based on the secret. Information indicative of the deterministic key may be sent to the key device where the information may be stored.
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公开(公告)号：US20200005254A1
公开(公告)日：2020-01-02
申请号：US16079091
申请日：2017-02-21
摘要： The disclosure relates to a blockchain-implemented system and method of controlling the transmission and/or distribution of digital content. In an illustrative embodiment, the blockchain is the Bitcoin blockchain. The first user (5) is associated with a deposit quantity of cryptocurrency at a common address (23), wherein to spend from the common address requires signatures of both a first private key of the first user (5) and a second private key of the second user (7). The system (1) comprises a first node (15) and a second node (17). The first node (15) is associated with a first user (5) comprising a first processing device configured to: (A) send, over a communications network (8), a request to the second node (17) to provide an episode of digital content from a series of digital content; (B) determine a payment transaction (27) to transfer from a common address (23) a payment quantity of cryptocurrency to the second user (7), wherein the payment quantity of cryptocurrency is based on a quantity of episodes of digital content in the series of digital content requested by the first user (5); and (C) sign, with the first private key (V1), the payment transaction (27) and subsequently send the payment transaction (27) to the second node (17). The second node (17) is associated with the second user (7) comprising a second processing device configured to: (I) receive, over the communications network (8), the request from the first node (15) to provide the episode of digital content and the payment transaction (27), signed with the first private key; (II) verify the payment transaction, comprising verifying that the payment transaction includes the payment quantity of cryptocurrency to the second user (7), and based on the result of verifying the second processing device is further configured to: (III) provide access, over the communications network (8), to the episode of digital content (i) to be available to the first node (15); and (IV) co-sign, with the second private key of the second user (5), the payment transaction and send the co-signed payment transaction to a distributed ledger (blockchain) (9).
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65.发明申请公开(公告)号：US20190279197A1
公开(公告)日：2019-09-12
申请号：US16345517
申请日：2017-10-27
摘要： The invention relates to a technique for implementing, controlling and automating a task or process on a blockchain such as, but not limited to, the Bitcoin blockchain. The invention is particularly suited for, but not limited to, automated execution of contracts such as smart contracts for financial agreements. However, other types of tasks and non-financial contracts can be implemented. The invention can be viewed as the implementation or incarnation of a state machine or DFA on a blockchain by using the unspent outputs of blockchain Transactions to represents the states of the machine, and spending of those outputs as the transition of the machine from one state to another. The invention provides a technical realisation and implementation of a mathematical model of computation conceived as an abstract machine that can be in one of a finite set of states, and can change from one state to another (transition) when a triggering event of a finite set (called input) occurs. The invention comprises compilation and codification techniques for the DFA implementation.
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公开(公告)号：US20190164138A1
公开(公告)日：2019-05-30
申请号：US16320987
申请日：2017-07-21
摘要： The invention provides a novel and advantageous method and corresponding system. The invention is implemented via a distributed electronic ledge (blockchain). This may or may not be the Bitcoin blockchain. The invention is suited for the exchange or transfer of an asset, e.g. a digital asset, such as tickets and the like (but not limited in this regard). A n embodiment may provide a computer-implemented method for transferring an asset between a first user and a second user via a blockchain, the method comprising: generating a first blockchain transaction comprising at least one first output, representing at least one first asset, redeemable by providing either: (i) unlocking data; or (ii) a cryptographic signature of the first user and a cryptographic signature of a second user, wherein the at least one first asset is exchanged for at least one second asset represented by a t least one second output of a second blockchain transaction, the at least one second output redeemable by providing either: (i) the unlocking data; or (ii) the cryptographic signature of the first user and the cryptographic signature of the second user, and wherein redemption of at least one second output by providing the first unlocking data makes the first unlocking data available to redeem at least one first output. The unlocking data may the unlocking data comprise revealable data which is chosen by the first user and is initially kept secret or unknown to the second user. Redemption of a third transaction causes the revealable data to become publicly available via the blockchain and thus known to the second user, who can use it in another unlocking script.
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67.发明申请公开(公告)号：US20190130391A1
公开(公告)日：2019-05-02
申请号：US16092744
申请日：2017-04-10
摘要： A computer-implemented method of determining the validity of a token (T) associated with a quantity of cryptocurrency is provided. In some embodiments, the method comprises: a second user (B) receiving, over a communications network, a first transaction comprising a transfer of the token (T) from a first user (A) to the second user (B), querying a peer-to-peer distributed ledger to determine whether an authenticated transaction associated with the token (T) can be identified, wherein the authenticated transaction comprises a previous transaction associated with the token (T) and wherein the token (T) has been authorised and responsive to identifying an authenticated transaction, determining that the token (T) is valid. In some embodiments, the method comprises: a second user: receiving, over a communications network, a first transaction comprising a transfer of the token from a first user to the second user; querying a title registry database to determine if a second transaction comprising a transfer of the token is recorded in the title registry database; and responsive to determining that the second transaction is recorded in the title registry database, determining that the token is valid.
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68.发明申请公开(公告)号：US20190058733A1
公开(公告)日：2019-02-21
申请号：US16079076
申请日：2017-02-14
发明人： Craig Steven Wright
IPC分类号： H04L29/06
CPC分类号： H04L63/1491 , H04L63/1425
摘要： The invention provides mechanisms for enhancing the security and protection of a computer-based system or network. It relates, in part, to the use of a decoy (which may be termed “honeypot” or “honeynet”) for collecting attacker-related data, and/or diverting malicious behaviour away from legitimate resources. In one embodiment, the invention provides a method comprising the steps of receiving, processing and logging network traffic data of a plurality of users, where the network traffic is received from a plurality of participating users; determining an attacker profile from the network traffic data; determining a honeypot or honeynet configuration based on the attacker profile; and upon receipt of a valid information request from a user of the plurality of users, providing the determined attacker profile and configuration to the user. Additionally or alternatively, it may provide a computer-implemented method comprising the steps of receiving, processing and logging network traffic data; based on processed network traffic data: determining that network traffic originates from an attacker, determining a risk classification; and determining a decoy configuration based on the risk classification; upon receipt of a valid information request from a user, providing the determined risk classification and decoy configuration to the user.
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公开(公告)号：US20190052454A1
公开(公告)日：2019-02-14
申请号：US16079089
申请日：2017-02-14
发明人： Craig Steven Wright , Gavin Allen
摘要： According to one perspective, the invention provides a technical arrangement to calculate, register and/or apportion costs and/or generate income in proportion to the current ownership of an asset. One or more embodiments also comprise a novel technique for generating cryptographic sub-keys. Thus, one benefit provided by the invention is that it allows the secure distribution of costs and income for an asset registered and maintained on the Blockchain. In turn, this increases the capability of such assets to meet the real-world needs of various entities such as the asset itself and investing parties. In one embodiment the invention provides a computer-implemented system for controlling a transfer made via a blockchain in respect of an asset, the system comprising an asset having a plurality of private cryptographic keys, each private key being associated with an owner of the asset; a registry comprising a plurality of public cryptographic keys wherein each public key corresponds to a private key in the asset's plurality of private keys, and is associated with a redeem script hash that can be identified within an unspent blockchain transaction; a smart contract comprising at least one rule relating to the automated generation of one or more blockchain transactions to enable a transfer to be made in respect of the asset; and a computing agent arranged to evaluate and/or execute the at least one rule of the smart contract. In some embodiments, a hierarchy of computing agents is managed by a master agent to carry out the asset related tasks defined in the smart contract. The master and subordinate agents communicate to execute discrete tasks.
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公开(公告)号：US20190050832A1
公开(公告)日：2019-02-14
申请号：US16079083
申请日：2017-02-16
摘要： 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).
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