Application US20190050855

BLOCKCHAIN-BASED SYSTEMS, METHODS, AND APPARATUS FOR SECURING ACCESS TO INFORMATION STORES
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US20190050855

1. A system for controlling access to information stored in a distributed ledger environment, the system comprising: (8) (6)

a processing device; and

a memory device in communication with the processor, the memory device storing operating instructions and programmatic code defining a blockchain application operable to manage a distributed ledger, wherein executing of the operating instructions by the processing device results in:

receiving a first smart contract comprising a first data table, a first keyset, and a first code module, wherein successful execution of the first code module is required for access to the first data table;

executing the first smart contract;

determining whether the first smart contract executed successfully; and

performing one of: permitting access to the first data table if the first smart contract executed successfully, or

denying access to the first data table if the first smart contract did not execute successfully.

2. The system of claim 1, wherein the first code module defines a call to a second smart contract, the second smart contract comprising a second data table, a second keyset, and a second code module. (5) (0)

8. The system of claim 1, wherein successful execution of the second code module is required for access to the second data table. (1) (0)

9. The system of claim 1, wherein executing of the operating instructions by the processing device further results in compiling the first smart contract. (0)

11. The system of claim 1, wherein executing of the operating instructions by the processing device further results in: (0) (3)

12. The system of claim 1, wherein executing of the operating instructions by the processing device further results in: (0) (2)

13. The system of claim 1, wherein executing of the operating instructions by the processing device further results in: (0) (2)

14. The system of claim 1, wherein executing the first smart contract comprises: (0) (4)

initiating a first step of the first code module;

yielding execution of the first code module;

receiving a message;

in response to receiving the message, resuming execution of the first smart contract in a second step.

15. The system of claim 1, wherein executing the first smart contract comprises: (0) (5)

in a first step, calling a second smart contract by the first smart contract;

yielding execution of the first smart contract;

receiving a response by the second smart contract;

in response to receiving the response, in a second step, resuming execution of the first smart contract; and

validating the response from the second smart contract.

16. A method for controlling access to information stored in a distributed ledger environment, comprising: (8) (4)

receiving a first smart contract comprising a first data table, a first keyset, and a first code module, wherein the first code module defines a call to a second smart contract, the second smart contract comprising a second data table, a second keyset, and a second code module,

wherein successful execution of the first code module is required for access to the first data table, and

wherein successful execution of the second code module is required for access to the second data table;

executing the first smart contract;

determining whether the first smart contract executed successfully; and

performing one of: permitting access to the first data table if the first smart contract executed successfully, or

denying access to the first data table if the first smart contract did not execute successfully.

17. The method of claim 16, wherein the first code module defines a call to a second smart contract, the second smart contract comprising a second data table, a second keyset, and a second code module. (5) (0)

23. The method of claim 16, wherein successful execution of the second code module is required for access to the second data table. (0)

24. The method of claim 16, further comprising: (1) (1)

26. The method of claim 16, further comprising: (0) (3)

27. The method of claim 16, further comprising: (0) (2)

28. The method of claim 16, further comprising: (0) (2)

29. The method of claim 16, wherein executing the first smart contract comprises: (0) (4)