US Patent 10055601 Method and system for securing data

A first access key, which is provided by a key server for decrypting a file and the encrypted file is published on a public network by a first user. Every time the secured file is accessed by a second user, the first access key is provided by the key server to decipher the file. The first user can control access to the file by deleting the first access key on the key server, thus denying the second user access to the access key preventing de-encryption of the secured file.