File security system using a security class and method for managing an encryption key
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jul 3, 2003
app pub date -
Sep 3, 2002
filing date -
Dec 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A file security system uses a security class set by an access control module. The file security system includes a disk, a kernel memory and an encryption file system. The disk includes a key file in which an encryption key corresponding to the security class is stored and a file encoded by the encryption key. The encryption key stored in the disk is loaded into the kernel memory when the file security system starts operating. The encryption file system extracts an encryption key corresponding to a security class of a file that a user intends to read or store; decodes or encodes the file by using the extracted encryption key; and then provides the decoded file to the user or stores the encoded file in the disk.
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