title: linux how to intercept unauthorized process access to the file,base with FUSE( cryfs or gocryptfs )
body: <p>Now I use cryfs or gocryptfs to encrypt some data.
  This data can only be accessed by the specified process.
  If another process want to accessed this data,cryfs or gocryptfs  just return ciphertext to this unauthorized process.</p>
  <p>Does libfuse support this function?Or there are some good ways to know which process is accessing confidential data.</p>