Abstract: A method for accessing a protected file system includes receiving a request from a process to access the file system, the request including a requesting process identification and a requesting process name; decrypting an ACL to obtain ACL process names, ACL process identifications, and ACL process file checksums; allowing the process access to the file system if the requesting process name matches a corresponding ACL process name and the requesting process identification matches a corresponding ACL process identification; or allowing the process access to the file system if the requesting process identification does not match a corresponding ACL process identification but a calculated process file checksum matches a corresponding ACL process file checksum. In one embodiment, the ACL information can be stored in a key ring.

Abstract: An apparatus for increasing the efficiency of carburetors for internal combustion engines comprises a base having an opening for the passage of the fuel mixture from the carburetor and having a cavity for controlledly admitting secondary air towards said opening, through a plurality of conduits extending within the opening, a first grid partially spanning the throat of the carburetor and a second grid partially spanning the opening at the level of the surface of the base which engages the admission manifold of the engine, such that a non-obstructed gap is left between said grids at the opening. Also, a filter is provided in said cavity, said filter having control valves for admitting air into said cavity, said valves being adjustable for controlling the amount of air to be admitted into the opening.