System and method for protecting information and related encryption keys

摘要

A system apparatus and method for protecting information are provided. Embodiments of the invention may detect inactivity related to a computing device. Information and encryption key may be removed from a memory. Subsequent activity may be detected. An authentication procedure may be performed, and, contingent on authenticating a relevant entity, a master key may be generated and installed in a memory.

主权项

1. A method for protecting content in a computing device, the method comprising:
encrypting content objects using a plurality of file encryption keys; encrypting said file encryption keys using 13 master encryption key; installing said master encryption key in a first memory; using said master key to decrypt the file encryption keys, and to install the file encryption keys in the first memory; detecting inactivity related to a computing device; upon detecting inactivity:
removing said master encryption key from said first memory and selectively removing at least one file encryption key from the plurality of the file encryption keys;generating a temporary master key and a new file key for a new content object;encrypting the new content object using the new file key and encrypting the new file key by the temporary master key; and upon receiving input from an authenticated user, decrypting the new file key using the temporary master key, generating a new master key usable for encrypting and decrypting said new file encryption key, and installing said new master key in said first memory.