Application US20190018947

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US20190018947

1. A computer-implemented method, comprising: (6) (5)

creating, at an information-processing device, a smart contract based on a predetermined smart contract template, wherein the smart contract comprises login information corresponding to a user, wherein the login information is determined based on a login information storage request sent from the user, and wherein the login information storage request comprises an identifier;

storing, the created smart contract at a storage address in a blockchain network based on the identifier;

receiving, a login information query request from the user, wherein the login information query request comprises the identifier;

retrieving, at least one smart contract from the blockchain network based on the identifier, and determining the smart contract corresponding to the user from the at least one retrieved smart contract; and

executing, the smart contract corresponds to the user to obtain at least one login information, and sending the obtained login information to the user.

2. The computer-implemented method of claim 1, wherein creating the smart contract based on a predetermined smart contract template comprises: (0) (4)

receiving a login information storage request from a user, wherein the login information storage request comprises login information and an identifier;

processing, the identifier to obtain a private-public key pair;

encrypting the login information by using a public key in the private-public key pair; and

creating, based on a predetermined smart contract template, a smart contract that comprises the encrypted login information.

3. The computer implemented method of claim 1, wherein storing the smart contract comprises: (0) (2)

4. The computer-implemented method of claim 1, wherein retrieving the smart contract from the blockchain network comprises: (0) (5)

processing, the identifier to obtain a private-public key pair;

obtaining a first address based on a public key in the private-public key pair, wherein the first address is obtained by calculating the public key based on an algorithm;

determining, based on the first address, at least one second address, wherein each of the at least one second addresses performs a transaction with the first address;

identifying, a storage address of the smart contract from the at least one second address; and

retrieving, at least one smart contract from the identified storage address.

5. The computer-implemented method of claim 1, wherein determining the smart contract corresponding to the user from the retrieved at least one smart contracts comprises: (0) (2)

6. The computer-implemented method of claim 1, wherein the login information contained in the smart contract is encrypted, executing the smart contract to obtain login information corresponding to the user comprises: (0) (4)

executing the smart contract to obtain encrypted login information;

processing the identifier associated with the login information query request to obtain a private-public key pair;

decrypting the encrypted login information by using a private key in the private-public key pair to obtain decrypted login information; and

feeding back the obtained decrypted login information to the user, wherein the login information can be confirmed by the user.

7. The computer-implemented method of claim 1, further comprising processing the obtained login information based on a processing request sent from the user. (0)

8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising: (6) (5)

create, at an information-processing device, a smart contract based on a predetermined smart contract template, wherein the smart contract comprises login information corresponding to a user, wherein the login information is determined based on a login information storage request sent from the user, and wherein the login information storage request comprises an identifier;

store, the created smart contract at a storage address in a blockchain network based on the identifier;

receive, a login information query request from the user, wherein the login information query request comprises the identifier;

retrieve, at least one smart contract from the blockchain network based on the identifier, and determining the smart contract corresponding to the user from the at least one retrieved smart contract; and

execute, the smart contract corresponds to the user to obtain at least one login information, and sending the obtained login information to the user.

9. The non-transitory, computer-readable medium of claim 8, wherein creating the smart contract based on a predetermined smart contract template comprises: (0) (4)

receiving a login information storage request from a user, wherein the login information storage request comprises login information and an identifier;

processing, the identifier to obtain a private-public key pair;

encrypting the login information by using a public key in the private-public key pair; and

creating, based on a predetermined smart contract template, a smart contract that comprises the encrypted login information.

10. The non-transitory, computer-readable medium of claim 8, wherein storing the smart contract comprises: (0) (2)

11. The non-transitory, computer-readable medium of claim 8, wherein retrieving the smart contract from the blockchain network comprises: (0) (5)

processing, the identifier to obtain a private-public key pair;

obtaining a first address based on a public key in the private-public key pair, wherein the first address is obtained by calculating the public key based on an algorithm;

determining, based on the first address, at least one second address, wherein each of the at least one second addresses performs a transaction with the first address;

identifying, a storage address of the smart contract from the at least one second address; and

retrieving, at least one smart contract from the identified storage address.

12. The non-transitory, computer-readable medium of claim 8, wherein determining the smart contract corresponding to the user from the retrieved at least one smart contracts comprises: (0) (2)

13. The non-transitory, computer-readable medium of claim 8, wherein the login information contained in the smart contract is encrypted, executing the smart contract to obtain login information corresponding to the user comprises: (0) (4)

executing the smart contract to obtain encrypted login information;

processing the identifier associated with the login information query request to obtain a private-public key pair;

decrypting the encrypted login information by using a private key in the private-public key pair to obtain decrypted login information; and

feeding back the obtained decrypted login information to the user, wherein the login information can be confirmed by the user.

14. The non-transitory, computer-readable medium of claim 8, further comprising one or more instructions to process the obtained login information based on a processing request sent from the user. (0)

15. A computer-implemented system, comprising: (5) (2)

one or more computers; and

one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising: creating, at an information-processing device, a smart contract based on a predetermined smart contract template, wherein the smart contract comprises login information corresponding to a user, wherein the login information is determined based on a login information storage request sent from the user, and wherein the login information storage request comprises an identifier;

storing, the created smart contract at a storage address in a blockchain network based on the identifier;

receiving, a login information query request from the user, wherein the login information query request comprises the identifier;

executing, the smart contract corresponds to the user to obtain at least one login information, and sending the obtained login information to the user.

16. The computer-implemented system of claim 15, wherein creating the smart contract based on a predetermined smart contract template comprises: (0) (4)

receiving a login information storage request from a user, wherein the login information storage request comprises login information and an identifier;

processing, the identifier to obtain a private-public key pair;

encrypting the login information by using a public key in the private-public key pair; and

creating, based on a predetermined smart contract template, a smart contract that comprises the encrypted login information.

17. The computer-implemented system of claim 15, wherein storing the smart contract comprises: (0) (2)

18. The computer-implemented system of claim 15, wherein retrieving the smart contract from the blockchain network comprises: (0) (5)

processing, the identifier to obtain a private-public key pair;

obtaining a first address based on a public key in the private-public key pair, wherein the first address is obtained by calculating the public key based on an algorithm;

determining, based on the first address, at least one second address, wherein each of the at least one second addresses performs a transaction with the first address;

identifying, a storage address of the smart contract from the at least one second address; and

retrieving, at least one smart contract from the identified storage address.

19. The computer-implemented system of claim 15, wherein determining the smart contract corresponding to the user from the retrieved at least one smart contracts comprises: (0) (2)

20. The computer-implemented system of claim 15, wherein the login information contained in the smart contract is encrypted, executing the smart contract to obtain login information corresponding to the user comprises: (0) (4)

executing the smart contract to obtain encrypted login information;

processing the identifier associated with the login information query request to obtain a private-public key pair;

decrypting the encrypted login information by using a private key in the private-public key pair to obtain decrypted login information; and

feeding back the obtained decrypted login information to the user, wherein the login information can be confirmed by the user.

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Application US20190018947

LOGIN INFORMATION DATA PROCESSING

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