International Institute of Information Technology, Hyderabad

Sujit Gujar

Kannan Srinathan

Varul Srivastava

Anurag Jain

The present disclosure provides a system for detecting and neutralizing a plurality of security attacks on a blockchain network to improve security of the blockchain network. The system includes a sender node that is configured to send a transaction to a user device associated with at least one user. The blockchain network is configured to (i) receive the transaction from the sender node when the first block gets validated in the first blockchain, (ii) validate the transaction of the first block to neutralize the first attack, (iii) determine a second attack by initiating a split in the first blockchain to determine a second blockchain, and (iv) invalidate the second blockchain when the latest block of the first blockchain invalidates the second block of the second blockchain when a proof of invalidity (POI) is added to the second block to neutralize the second attack.

System and method for detecting and neutralizing security attacks in blockchains

A blockchain system for mining a transaction using parallel blocks to improve scalability is provided. The blockchain system includes a sender node, a blockchain network, and mining nodes. The sender node (i) creates a transaction, and (ii) broadcasts the transaction on the blockchain network. Each of the mining nodes is configured to (I) split the transaction into disjoint subsets based on a hash value of the public key; (II) assign the disjoint subsets to a plurality of sub-chains that are mined in parallel by a plurality of miners; (III) mine the parallel block followed by a mining block; and (IV) verify multiple sets of transactions associated with the parallel block using an umbrella-proof-of-work method, thereby improving scalability of the blockchain system.

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Hyderabad, India

Sujit Gujar