Blockchain data processing methods, apparatuses, processing devices, and systems

1. A computer-implemented method for securing blockchain transactions, comprising:

determining temporary identity information for a transaction participant based on first identity information that identifies the transaction participant, wherein the transaction participant participates in a transaction in a blockchain;

identifying, for the transaction participant, a replacement frequency for the temporary identity information, wherein the replacement frequency is one of a plurality of different replacement frequencies, and wherein the transaction participant is assigned the replacement frequency based on a characteristic of the transaction participant;

determining, based on the replacement frequency for the temporary identity information, that the temporary identity information is to be replaced; and

in response to determining that the temporary identity information is to be replaced, generating updated temporary identity information for the transaction participant based on a predetermined replacement method.

2. The computer-implemented method of claim 1 , wherein the characteristic of the transaction participant comprises an access level of the transaction participant.

3. The computer-implemented method of claim 2 , wherein identifying, for the transaction participant, the replacement frequency for the temporary identity information comprises:

retrieving the access level of the transaction participant; and

determining the replacement frequency based on the access level.

4. The computer-implemented method of claim 1 , wherein the temporary identity information comprises data that is generated by processing the first identity information using an asymmetric encryption algorithm.

5. The computer-implemented method of claim 1 , further comprising:

encrypting a private key associated with the transaction participant using a public key associated with a regulator to obtain an encrypted private key; and

responsive to encrypting the private key, transmitting the encrypted private key to the regulator.

6. The computer-implemented method of claim 1 , further comprising signing the transaction using the temporary identity information to obtain first signed transaction content.

7. The computer-implemented method of claim 6 , wherein the first signed transaction content is associated with a contract, and wherein signing the transaction occurs during a creation of the contract, a modification of the contract, an execution of the contract, or combinations thereof.

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

determining temporary identity information for a transaction participant based on first identity information that identifies the transaction participant, wherein the transaction participant participates in a transaction in a blockchain;

identifying, for the transaction participant, a replacement frequency for the temporary identity information, wherein the replacement frequency is one of a plurality of different replacement frequencies, and wherein the transaction participant is assigned the replacement frequency based on a characteristic of the transaction participant;

determining, based on the replacement frequency for the temporary identity information, that the temporary identity information is to be replaced; and

in response to determining that the temporary identity information is to be replaced, generating updated temporary identity information for the transaction participant based on a predetermined replacement method.

9. The non-transitory, computer-readable medium of claim 8 , wherein the characteristic of the transaction participant comprises an access level of the transaction participant.

10. The non-transitory, computer-readable medium of claim 9 , wherein identifying, for the transaction participant, the replacement frequency for the temporary identity information comprises:

retrieving the access level of the transaction participant; and

determining the replacement frequency based on the access level.

11. The non-transitory, computer-readable medium of claim 8 , wherein the temporary identity information comprises data that is generated by processing the first identity information using an asymmetric encryption algorithm.

12. The non-transitory, computer-readable medium of claim 8 , wherein the operations further comprise:

encrypting a private key associated with the transaction participant using a public key associated with a regulator to obtain an encrypted private key; and

responsive to encrypting the private key, transmitting the encrypted private key to the regulator.

13. The computer-implemented method of claim 8 , wherein the operations further comprise signing the transaction using the temporary identity information to obtain first signed transaction content.

14. The computer-implemented method of claim 13 , wherein the first signed transaction content is associated with a contract, and wherein signing the transaction occurs during a creation of the contract, a modification of the contract, an execution of the contract, or combinations thereof.

15. A computer-implemented system, comprising:

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:

determining temporary identity information for a transaction participant based on first identity information that identifies the transaction participant, wherein the transaction participant participates in a transaction in a blockchain;

identifying, for the transaction participant, a replacement frequency for the temporary identity information, wherein the replacement frequency is one of a plurality of different replacement frequencies, and wherein the transaction participant is assigned the replacement frequency based on a characteristic of the transaction participant;

determining, based on the replacement frequency for the temporary identity information, that the temporary identity information is to be replaced; and

in response to determining that the temporary identity information is to be replaced, generating updated temporary identity information for the transaction participant based on a predetermined replacement method.

16. The computer-implemented system of claim 15 , wherein the characteristic of the transaction participant comprises an access level of the transaction participant.

17. The computer-implemented system of claim 16 , wherein identifying, for the transaction participant, the replacement frequency for the temporary identity information comprises:

retrieving the access level of the transaction participant; and

determining the replacement frequency based on the access level.

18. The computer-implemented system of claim 15 , wherein the temporary identity information comprises data that is generated by processing the first identity information using an asymmetric encryption algorithm.

19. The computer-implemented system of claim 15 , wherein the operations further comprise:

encrypting a private key associated with the transaction participant using a public key associated with a regulator to obtain an encrypted private key; and

responsive to encrypting the private key, transmitting the encrypted private key to the regulator.

20. The computer-implemented system of claim 15 , wherein the operations further comprise signing the transaction using the temporary identity information to obtain first signed transaction content.