Secure blockchain-based consensus

Patent metadata

Field	Value
Publication number	US-2024291856-A1
Application number	US-202418658943-A
Country	US
Kind code	A1
Filing date	May 8, 2024
Priority date	Apr 18, 2017
Publication date	Aug 29, 2024
Grant date	—

Abstract

Techniques are presented relating to steps after a congress pool has accepted a request from a requester to activate a script. The steps include preparing, by a node, a blockchain transaction cryptographically locked with a public key associated with the congress pool, the blockchain transaction configured to permit a plurality of information providing systems to add inputs to the blockchain transaction; determining a centre point for data received from the plurality of information providing systems; and activating, by the node in cooperation with other nodes of the congress pool, the script based on the centre point.

First claim

What is claimed is:

1 . A computer-implemented method comprising:
after a congress pool has accepted a request from a requester to activate a script, preparing, by a node, a blockchain transaction cryptographically locked with a public key associated with the congress pool, the blockchain transaction configured to permit a plurality of information providing systems to add inputs to the blockchain transaction; determining a centre point for data received from the plurality of information providing systems; and activating, by the node in cooperation with other nodes of the congress pool, the script based on the centre point.

2 . The computer-implemented method of claim 1 , further comprising:
based on the centre point, identifying, by the node, a subset of the information providing systems that provided data proximate to the centre point; and authorizing, by the node in cooperation with other nodes of the congress pool, a transfer of a token to each information providing system in the subset.

3 . The computer-implemented method of claim 2 , wherein the token included in the transfer includes one or more tokens received from the requester into the congress pool.

4 . The computer-implemented method of claim 2 , wherein the request includes a threshold indicator and wherein the subset is identified based on the threshold indicator.

5 . The computer-implemented method of claim 4 , wherein the threshold indicator is received from the requester.

6 . The computer-implemented method of claim 1 , wherein the inputs include respective proof of solution data, the method further comprising determining that the data received from at least one of the information providing system corresponds with a committed solution based on the proof of solution data.

7 . The computer-implemented method of claim 1 , wherein the inputs include respective proof of solution data, the method further comprising:
determining that the data received from at least one of the information providing systems does not correspond with the proof of solution data received from that information providing system; and in response to determining that the data received from the at least one of the information providing systems does not correspond with a committed solution based on the proof of solution data, discarding the data.

8 . The computer-implemented method of claim 1 , wherein the inputs include tokens to be locked for security.

9 . The computer-implemented method of claim 1 , wherein the information providing systems include, in the blockchain transaction, a hash based on a public key, a solution to the request and salt.

10 . The computer-implemented method of claim 9 , wherein the data received from the plurality of information providing systems includes the public key, the solution to the request and the salt, the method further comprising:
generating a hash based on the public key, the solution to the request, and the salt; and comparing the generated hash with the hash included in the blockchain transaction.

11 . The computer-implemented method of claim 1 , further comprising:
detecting malicious activity by a malicious party, wherein the malicious party is one of the nodes of the congress pool; and using a private key share to confiscate at least a portion of tokens previously transferred to the congress pool by the malicious party.

12 . The computer-implemented method of claim 11 , wherein confiscating comprises transferring to an unspendable account.

13 . A computer-readable storage medium comprising computer-executable instructions that, when executed, configure a processor to perform the method of claim 1 .

14 . An electronic device comprising:
an interface device; a processor coupled to the interface device; and a memory coupled to the processor, the memory having stored thereon computer-executable instructions that, when executed, configure the processor to perform the method of claim 1 .

15 . The electronic device of claim 14 , wherein the processor includes a trusted execution environment and wherein the computer-executable instructions are executed within the trusted execution environment.

Assignees

• Nchain Licensing Ag

Inventors

• Jimenez-Delgado Pedro

Classifications

• H04L63/1425

  Traffic logging, e.g. anomaly detection · CPC title

• H04L63/123 Primary

  received data contents, e.g. message integrity · CPC title

• H04L9/3239 Primary

  involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD · CPC title

• H04L9/3255

  using group based signatures, e.g. ring or threshold signatures · CPC title

• H04L9/50

  using hash chains, e.g. blockchains or hash trees · CPC title