Abstract: Systems and methods for privacy in distributed ledger transactions are disclosed. In one embodiment, in an information processing apparatus comprising at least one computer processor for a first node in a computer network comprising a plurality of nodes, a method for generating a key directory in a network comprising a plurality of nodes may include: (1) advertising a public key for a first node to the other nodes; (2) receiving public key information from each of the plurality of nodes; and (3) generating a public key directory that associates each node in the computer network with its public key.