Encrypting file system and method
September 16, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCryptographic file security for single domain networks Cryptographic communication and file security using terminals Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors System for seamless processing of encrypted and non-encrypted data and instructions Method and system for multimedia access control enablement Method and apparatus for enabling trial period use of software products: Method and apparatus for utilizing a decryption block Enhanced data privacy for portable computers Enciphering/deciphering device and method, and encryption/decryption communication system Patent #: 5870477 Inventors
AssigneeApplicationNo. 931774 filed on 09/16/1997US Classes:713/165, File protection380/286Key escrow or recoveryExaminersPrimary: Barron, Gilberto Jr.Attorney, Agent or FirmForeign Patent References
International ClassH04L 009/30AbstractA system and method for encryption and decryption of files. The system and method operate in conjunction with the file system to transparently encrypt and decrypt files in using a public key-private key pair encryption scheme. When a user puts a file in an encrypted directory or encrypts a file, all data writes to the disk for that file are encrypted with a random file encryption key generated from a random number and encrypted with the public key of a user and the public key of at least one recovery agent. The encrypted key information is stored with the file, whereby the user or a recovery agent can decrypt the file data using the private key thereof. When a proper private key is used, encrypted reads from the disk are decrypted transparently by the file system and returned to the user.Other References
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