Protection against unintentional file changing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 2007
Grant Date -
N/A
app pub date -
Jan 5, 2001
filing date -
Jul 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An encrypted file system that uses the encryption of files in a computer to restrict access to the files. Encrypted files are associated with a user. A decryption key is required in order to allow changes to be made to any of those files. Other files, such as those files which are less sensitive, may be unencrypted, and may be accessed even when the user is unavailable. These files may be read only files. A duplicate decryption technique may be allowed to allow access to the files, if the decryption key becomes unavailable. Certificates can verify access to the different files.
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