Patent attributes
A method for document authorization and distribution is provided. The method is based on a system including a repository server, communicating with or hosting a repository; a blockchain network, including a plurality of peers; and a plurality of user devices, each communicating with the repository server or the blockchain network. The repository contains a plurality of published documents. A plurality of document publication records, a plurality of document dissemination records, and an access control smart contract are distributed over the peers. The method includes: when an access request for a published document is submitted by a user from a user device, retrieving the published document; verifying the document access right; encrypting the published document with a document password encrypted using the user's public key; signing and posting a document dissemination record, including the document password; and placing the document contents and a signed document hash value in a container document.
