Abstract: Disclosed is a system (100, 200) for authenticating a digital transaction by implementing a multi-party computation protocol. The system comprises a first set of first nodes (102) configured to generate a first data (104), wherein each of the first nodes, from the first set of first nodes, in a second set of first nodes (102A) is an independent party and a server arrangement (106) communicably coupled with the first set of first nodes. The server arrangement is configured to receive the first data from the first set of first nodes, generate a second data (108), verify whether a number of other of the first nodes (102B) not in the second set of first nodes is equal to or at most only one greater than a number of first nodes in the second set of first nodes and authenticate the digital transaction based on the verification, using the secret shares in the first data and the second data.

Abstract: Disclosed is a system (100, 200) for authenticating a digital transaction by implementing a multi-party computation protocol. The system comprises a first set of first nodes (102) configured to generate a first data (104), wherein each of the first nodes, from the first set of first nodes, in a second set of first nodes (102A) is an independent party and a server arrangement (106) communicably coupled with the first set of first nodes. The server arrangement is configured to receive the first data from the first set of first nodes, generate a second data (108), verify whether a number of other of the first nodes (102B) not in the second set of first nodes is equal to or at most only one greater than a number of first nodes in the second set of first nodes and authenticate the digital transaction based on the verification, using the secret shares in the first data and the second data.