Patent attributes
In a general aspect, a multiple-entity root certificate data block chain is constructed and maintained for use in a cryptography system. In some aspects, a genesis data block includes genesis block data entries representing respective member entities of a root certificate authority consortium. A block chain comprising the genesis block is provided for use by one or more end entities as a root certificate data block chain in a cryptography system. In some aspects, an action data block comprising an action block data entry is generated and sent to member entities of the root certificate authority consortium. An action block based on the action data block is generated and associated with an existing block of the block chain. The block chain comprising the action block is providing for use, by one or more end entities, as a root certificate data block chain in the cryptography system.
