In Encrypted File System?
The Encrypting File System (Efs) on Microsoft Windows Is a Feature Introduced in Version 3.0 of Ntfs That Provides Filesystem-Level Encryption. the Technology...
The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
What is encrypted file storage?
File Storage Encryption Definition
File storage encryption is just the encryption of stored data, usually for the purpose of protecting sensitive information from being viewed by people who shouldn't have access to it.
How does file system encryption work?
How does Encrypting File System work? ... When a user authenticates himself, the Encrypting File System component driver checks the digital certificate to retrieve the private key and then decrypts the symmetric key using that private key. All files and directories later are encrypted and decrypted using the symmetric key.