Abstract: The disclosed technology provides for managing, authenticating, and authorizing transactions utilizing multi-party-computation (“MPC”) across a network. A method includes receiving, by a server, policy data defining a transaction signing policy, receiving, from an initiator node, a transaction request, in response to receiving the transaction request: (i) determining, based on the transaction signing policy, a threshold number of virtual nodes in a cloud environment that are included in a transaction signing group and that are required to authorize the transaction request, and (ii) sending, to each of the virtual nodes, an authorization request to authorize the transaction request, receiving, from at least a subset of the virtual nodes, authorization data indicating that the transaction request has been authorized, and returning, to a hardware security module (HSM), a transaction payload based on processing the authorization data.