Abstract: A system for ensuring privacy of transactions is provided. The system may be performed by a computing system during execution of trusted code within a secure enclave of the computing system. The system receives an indication of a transaction. The system validates the transaction. The system encrypts the validated transaction using an encryption key of the trusted code. The system requests untrusted code of the computing system to store the encrypted validated transaction in a portion of a data store. The untrusted code cannot decrypt the encrypted validated transaction that is stored in the data store. Rather, only the trusted code can decrypt the encrypted validated transaction.
Abstract: A system for confirming an authorization to consume an output of a transaction based on multiple signatures with different authority weights is provided. The system confirms the authorization to consume the output when the combined authority weights of one or more authorities that provide their authorizations satisfy a threshold weight. The authority weight for each authority and the threshold weight are identified in an authorization specification that specifies the criterion for the authorization of a matter. The authorization specification also specifies authorization verification information for each authority. When the sum of the authority weights of the authorities whose authorizations have been verified is greater than or equal to the threshold weight, the system confirms the authorization to consume the output.
Abstract: A method and system are provided to support a decentralized distributed ledger in which transactions are recorded by parties to the transactions without the use of a blockchain. A distributed ledger system provides a protocol framework that supports the development of protocol flows. A protocol flow is computer code that controls the performance of a transaction by the party or parties to the transaction. Protocol flows can be developed for different types of transactions. The distributed ledger system allows transactions to be proposed, accepted, and notarized by a notary and stored without the use of a blockchain ledger. The distributed ledger system can avoid the expense of the computational and storage resources needed to redundantly verify a transaction and store evidence on the many nodes of a blockchain distributed ledger.
Type:
Grant
Filed:
June 2, 2020
Date of Patent:
December 21, 2021
Assignee:
R3 LLC
Inventors:
Michael Christopher Hearn, Qurratul Ain Shams Asari