<prompt> Passage: Encrypting File System EFS inopa simba uye mushandisi-transparent encryption chero faira kana forodha pamusoro NTFS vhoriyamu. EFS anoshanda pamwe EFS basa, Microsoft kuti CryptoAPI uye EFS File System Run-Time Library FSRTL. EFS anoshanda kuburikidza encrypting faira ane hombe symmetric kiyi aizivikanwawo sezvo File Encryption Key, kana FEK, iro rinoshandiswa nokuti zvinotora zvishoma nguva encrypt uye decrypt yakawanda mashoko pane kana asymmetric kiyi cipher rinoshandiswa.  <response>: CryptoAPI 