Patent attributes
Examples for distributed and secure storage of a data block amongst a network of nodes are presented. An example embodiment may involve logically partitioning the network of nodes into non-overlapping zones, each zone containing a subset of the nodes and generating a private key for use within a particular zone. The embodiment may further involve encrypting the data block with the private key, partitioning the data block as encrypted into sub-blocks, and distributing the sub-blocks amongst a subset of the nodes that is within the particular zone. The embodiment may also involve using a secret sharing process to divide the private key into a number of shares equivalent to a number of nodes in the particular subset of the nodes and distributing the shares of the private key amongst the particular subset of the nodes, such that each node therein receives exactly one of the shares of the private key.
