Blockchain-based unexpected data detection

Patent metadata

Field	Value
Publication number	US-10965445-B2
Application number	US-201916585646-A
Country	US
Kind code	B2
Filing date	Sep 27, 2019
Priority date	Nov 30, 2017
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

Methods, systems, and apparatuses for blockchain-based unexpected data detection are described herein. In some arrangements, a node within a decentralized peer-to-peer (e.g., P2P) network may receive a plurality of network function requests corresponding to the decentralized network. The node may analyze the plurality of network function requests to identify whether the requests included unexpected data and/or irregular data, and/or are associated with flagged wallets and/or smart contracts.

First claim

What is claimed is:

1. A method, comprising:
at a computing device configured to operate in a peer-to-peer (P2P) network, the computing device including at least one or more processors and memory storing at least a portion of a blockchain of the P2P network:
receiving a first plurality of network function requests, wherein each of the first plurality of network function requests is associated with a particular wallet;
creating a first pending block of the blockchain of the P2P network, wherein the first pending block includes the first plurality of network function requests;
scanning each of the first plurality of network function requests based on one or more previously identified data irregularities;
based on the scanning, identifying at least one network function request of the first plurality of network function requests that at least a first data irregularity of the one or more previously identified data irregularities;
responsive to identifying the at least one network function request that includes at least a first data irregularity of the one or more previously identified data irregularities, flagging at least one wallet associated with the at least one network function request;
storing the at least one flagged wallet with an identifier associated with the at least one flagged wallet;
comparing the identifier corresponding to the at least one flagged wallet with a plurality of identifiers corresponding to previously flagged wallets, wherein each of the previously flagged wallets is associated with a flag rating;
based on the comparison, identifying that the identifier corresponding to the at least one flagged wallet matches with at least one of the plurality of identifiers corresponding to the previously flagged wallets; and
updating the flag rating associated with the at least one flagged wallet matched with at least one of the previously flagged wallets.

2. The method of claim 1 , further comprising:
receiving, from a user of the computing device, entry of information corresponding to a network function request involving the at least one flagged wallet; and
displaying the flag rating associated with the at least one flagged wallet.

3. The method of claim 2 , wherein the network function request and the first plurality of network function requests include one or more of balance sheet transaction requests and smart contract operation requests.

4. The method of claim 1 , further comprising:
adding the first pending block to the blockchain of the P2P network; and
receiving a second plurality of network function requests related to a second pending block of the blockchain of the P2P network, wherein at least one of the second plurality of network function requests references the at least one flagged wallet.

5. The method of claim 4 , further comprising:
removing the at least one of the second plurality of network function requests from the second pending block based on the reference to the at least one flagged wallet; and
adding the second pending block to the blockchain of the P2P network without performing a function corresponding to the at least one of the second plurality of network function requests.

6. The method of claim 4 , further comprising:
wherein the at least one of the plurality of network function requests that references the at least one flagged wallet is a smart contract request associated with the at least one flagged wallet,
identifying a block of the blockchain comprising a smart contract corresponding to the smart contract request;
parsing the smart contract to identify one or more operations associated with the smart contract;
determining that at least one of the one or more operations is a malicious operation;
executing the smart contract without performing the malicious operation; and
adding the second pending block to the blockchain of the P2P network.

7. A computing device configured to operate in a peer-to-peer (P2P) network, comprising:
one or more processors; and
memory storing at least a portion of a blockchain of the P2P network and computer-readable instructions that, when executed by the one or more processors, cause the computing device to:
receive a first plurality of network function requests, wherein each of the first plurality of network function requests is associated a particular wallet;
create a first pending block of the blockchain of the P2P network, wherein the first pending block includes the first plurality of network function requests;
scan each of the first plurality of network function requests based on one or more previously identified data irregularities;
based on the scanning, identify at least one network function request of the first plurality of network function requests that includes at least a first data irregularity of the one or more previously identified data irregularities;
responsive to identifying the at least one network function request that includes at least a first data irregularity of the one or more previously identified data irregularities, flag at least one wallet associated with the at least one network function request;
store the at least one flagged wallet with an identifier associated with the at least one flagged wallet;
compare the identifier corresponding to the at least one flagged wallet with a plurality of identifiers corresponding to previously flagged wallets, wherein each of the previously flagged wallets is associated with a reputability rating;
based on the comparison, identify that the identifier corresponding to the at least one flagged wallet matches with at least one of the plurality of identifiers corresponding to the previously flagged wallets; and
update the reputability rating associated with the at least one flagged wallet matched with at least one of the previously flagged wallets.

8. The computing device of claim 7 , wherein the memory stores further computer-readable instructions that, when executed by the one or more processors, cause the computing device to:
receive, from a user of the computing device, entry of information corresponding to a network function request involving the at least one flagged wallet; and
display the reputability rating associated with the at least one flagged wallet.

9. The computing device of claim 8 , wherein the network function request and the first plurality of network function requests include one or more of balance sheet transaction requests and smart contract operation requests.

10. The computing device of claim 7 , wherein the memory stores further computer-readable instructions that, when executed by the one or more processors, cause the computing device to:
add the first pending block to the blockchain of the P2P network; and
receive a second plurality of network function requests related to a second pending block of the blockchain of the P2P network, wherein at least one of the second plurality of network function requests references the at least one flagged wallet.

11. The computing device of claim 10 , wherein the memory stores further computer-readable instructions that, when executed by the one or more processors, cause the computing device to:
remove the at least one of the second plurality of network function requests from the second pending block based on the reference to the at least one flagged wallet; and
add the second pending block to the blockchain of the P2P network without performing a function corresponding to the at least one of the second plurality of network function requests.

12. The computing device of claim 10 , wherein the at least one of the plurality of network function requests that references the at least one flagged wallet is a smart contract request ass

Assignees

• Bank Of America

Inventors

• Castinado Joseph
• Checco John C
• Lawrence Patrick Nicholas

Classifications

• H04L9/50 Primary

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

• H04L63/123

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

• H04L9/3247

  involving digital signatures · CPC title

• H04L9/0618 Primary

  Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation · CPC title

• H04L2209/56

  Financial cryptography, e.g. electronic payment or e-cash · CPC title