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公开(公告)号：US11880352B2
公开(公告)日：2024-01-23
申请号：US17686876
申请日：2022-03-04
Applicant: eBay, Inc.
Inventor： Michael Chan , Derek Chamorro , Arpit Jain , Venkata Siva Vijayendra Bhamidipati
CPC classification number: G06F16/2365 , G06F16/2379 , H04L9/0637 , H04L9/50
Abstract: Disclosed is technology for storing original work data on a derivative work data blockchain along with code for verifying that derivative work data is derivative of the original work data. The technology involves receiving derivative work data from a submitting entity along with proof data showing that the derivative work is derivative of the original work. If the derivative work data is verified as derivative, then the derivative work data is appended to the derivative work data blockchain.
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公开(公告)号：US11809551B2
公开(公告)日：2023-11-07
申请号：US17549027
申请日：2021-12-13
Applicant: EBAY INC.
Inventor： Venkata Siva Vijayendra Bhamidipati , Ashok Srinivasa Murthy , Derek Chamorro , Michael Chan , Arpit Jain
CPC classification number: G06F21/54 , G06Q20/3678 , G06Q20/405 , H04L9/0637
Abstract: Technologies are shown for function level permissions control for smart contract execution to implement permissions policy on a blockchain. Permissions control rules control function calls at a system level utilizing function boundary detection instrumentation in a kernel that executes smart contracts. The detection instrumentation generates a call stack that represents a chain of function calls in the kernel for a smart contract. The permissions control rules are applied to the call stack to implement permissions control policy. Permissions control rules can use dynamic state data in the function call chain. If the dynamic state data observed in function call chains does not meet the requirements defined in the permissions control rules, then the function call can be blocked from executing or completing execution. The permissions control rules can be generated for a variety of different entities, such as a domain, user or resource.
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公开(公告)号：US11888966B2
公开(公告)日：2024-01-30
申请号：US17850269
申请日：2022-06-27
Applicant: eBay Inc.
Inventor： Venkata Siva Vijayendra Bhamidipati , Michael Chan , Derek Chamorro , Arpit Jain , Ashok Srinivasa Murthy
CPC classification number: H04L9/0637 , G06Q20/367 , H04L9/3247 , H04L41/22 , H04L63/0227 , H04L63/1425 , H04L63/1433
Abstract: Technologies are shown for HGM based control for smart contract execution. HGM control rules control function calls at a system level utilizing function boundary detection instrumentation in a kernel that executes smart contracts. The detection instrumentation generates a call stack that represents a chain of function calls in the kernel for a smart contract. The HGM control rules are applied to HGMs collected from the call stack to allow or prohibit specific HGMs observed in functions or function call chains. HGM control rules can use dynamic state data in the function call chain. If the dynamic state data observed in function call chains does not meet the requirements defined in the HGM control rules, then the function call can be blocked from executing or completing execution. The HGM control rules can be generated by executing known sets of acceptable or vulnerable smart contracts and collecting the resulting HGMs.
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公开(公告)号：US11681551B2
公开(公告)日：2023-06-20
申请号：US17499649
申请日：2021-10-12
Applicant: EBAY INC.
Inventor： Michael Chan , Derek Chamorro , Venkata Siva Vijayendra Bhamidipati , Arpit Jain
CPC classification number: G06F9/50 , G06F8/65 , G06F16/1805 , H04L9/0643 , H04L9/50
Abstract: Technologies are shown for storing sub-component state data for a resource on a blockchain involving generating a resource data block that corresponds to a resource that includes links that correspond to sub-components of the resource, generating a first sub-component state data block for a sub-component of the resource on a blockchain that includes first state data for the first sub-component, and setting the link for the sub-component to reference the first sub-component state data block. Subsequently, a second sub-component state data block can be generated for the sub-component with second state data and the second sub-component state data block linked to the first sub-component state data block.
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公开(公告)号：US11899783B2
公开(公告)日：2024-02-13
申请号：US17571371
申请日：2022-01-07
Applicant: EBAY INC.
Inventor： Venkata Siva Vijayendra Bhamidipati , Michael Chan , Derek Chamorro , Arpit Jain , Ashok Srinivasa Murthy
CPC classification number: G06F21/54 , G06Q20/3678 , G06Q20/405 , H04L9/0637
Abstract: Technologies are shown for system level function based access control for smart contract execution on a blockchain. Access control rules control function calls at a system level by utilizing function boundary detection instrumentation in a kernel that executes smart contracts. The detection instrumentation generates a call stack that represents a chain of function calls in the kernel for execution of a smart contract. The access control rules are applied to the function call stack to allow or prohibit specific functions or function call chains. Access control rules can also define allowed or prohibited parameter data in the function call chain. If the function call chain or parameters do not meet the requirements defined in the access control rules, then the function call can be blocked from executing or completing execution. The access control rules can produce sophisticated access control policies based on complex function call chains.
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Patent Agency Ranking
公开(公告)号：US11676135B2
公开(公告)日：2023-06-13
申请号：US16742726
申请日：2020-01-14
Applicant: eBay inc.
Inventor： Venkata Siva Vijayendra Bhamidipati , Derek Chamorro , Michael Chan , Arpit Jain , Ashok Srinivasa Murthy , Anirudh Kamalapuram Muralidhar
CPC classification number: G06Q20/382 , G06F9/5005 , G06N5/04
Abstract: Technologies are shown for selecting a provider to service a client service request using a predictive metrics based consensus protocol to select a provider and create a service request transaction block to service the client service request. A client service request is received and forwarded to a set of providers. Proposed transactions are received from the providers and scored based on a predictive metric. A proposal transaction is selected based on the scoring and the selected transaction is written as a block on a service transaction blockchain. The provider for the selected transaction detects the block on the blockchain and performs the requested service. The client detects the block on the blockchain and transfers payment to the provider. Selection can be based on predictive metrics in the providers or macro metrics determined in miner nodes in combination with provider reputation, currency, load sharing, fairness, provisioning, and static and dynamic criteria.
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公开(公告)号：US11263315B2
公开(公告)日：2022-03-01
申请号：US16429656
申请日：2019-06-03
Applicant: eBay Inc.
Inventor： Venkata Siva Vijayendra Bhamidipati , Michael Chan , Derek Chamorro , Arpit Jain , Ashok Srinivasa Murthy
Abstract: Technologies are shown for system level function based access control for smart contract execution on a blockchain. Access control rules control function calls at a system level by utilizing function boundary detection instrumentation in a kernel that executes smart contracts. The detection instrumentation generates a call stack that represents a chain of function calls in the kernel for execution of a smart contract. The access control rules are applied to the function call stack to allow or prohibit specific functions or function call chains. Access control rules can also define allowed or prohibited parameter data in the function call chain. If the function call chain or parameters do not meet the requirements defined in the access control rules, then the function call can be blocked from executing or completing execution. The access control rules can produce sophisticated access control policies based on complex function call chains.
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公开(公告)号：US11250125B2
公开(公告)日：2022-02-15
申请号：US16698210
申请日：2019-11-27
Applicant: eBay Inc.
Inventor： Venkata Siva Vijayendra Bhamidipati , Ashok Srinivasa Murthy , Derek Chamorro , Michael Chan , Arpit Jain
Abstract: Technologies are shown for function level permissions control for smart contract execution to implement permissions policy on a blockchain. Permissions control rules control function calls at a system level utilizing function boundary detection instrumentation in a kernel that executes smart contracts. The detection instrumentation generates a call stack that represents a chain of function calls in the kernel for a smart contract. The permissions control rules are applied to the call stack to implement permissions control policy. Permissions control rules can use dynamic state data in the function call chain. If the dynamic state data observed in function call chains does not meet the requirements defined in the permissions control rules, then the function call can be blocked from executing or completing execution. The permissions control rules can be generated for a variety of different entities, such as a domain, user or resource.
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公开(公告)号：US11188384B2
公开(公告)日：2021-11-30
申请号：US16384362
申请日：2019-04-15
Applicant: eBay Inc.
Inventor： Michael Chan , Derek Chamorro , Venkata Siva Vijayendra Bhamidipati , Arpit Jain
Abstract: Technologies are shown for storing component state data for a resource on a blockchain involving generating a resource data block that corresponds to a resource that includes links that correspond to components of the resource, generating a first component state data block for a component of the resource on a blockchain that includes first state data for the first component, and setting the link for the component to reference the first component state data block. Subsequently, a second component state data block can be generated for the component with second state data and the second component state data block linked to the first component state data block.
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公开(公告)号：US11301452B2
公开(公告)日：2022-04-12
申请号：US16155448
申请日：2018-10-09
Applicant: eBay, Inc.
Inventor： Michael Chan , Derek Chamorro , Arpit Jain , Venkata Siva Vijayendra Bhamidipati
Abstract: Disclosed is technology for storing original work data on a derivative work data blockchain along with code for verifying that derivative work data is derivative of the original work data. The technology involves receiving derivative work data from a submitting entity along with proof data showing that the derivative work is derivative of the original work. If the derivative work data is verified as derivative, then the derivative work data is appended to the derivative work data blockchain.
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