The file’s encryption feature may be removed by clearing the check-box in the file properties.Īlthough used by many organizations, EFS must be handled with caution and knowledge, to avoid encrypting content that should be transparent, rather than secure.Files selected for encryption are encrypted once they are closed but are automatically ready to use once opened.EFS offers control over who can read the files.Select the check-box in the file or folder’s properties to turn on the encryption. Techopedia Explains Encrypting File SystemĮFS is actually a transparent public key encryption technology that operates with NTFS permissions to allow or deny user access to files and folders in various Windows operating systems (OS), including NT (excluding NT4), 2000 and XP (excluding XP Home Edition). Even if someone has access to a certain computer, whether authorized or not, he still cannot unlock the EFS cryptography without the secret key. Rather, it protects data files within systems. ![]() EFS uses symmetric and asymmetric keys during the encryption process, but it does not protect data transmissions. The cryptographic algorithms are used in EFS to provide useful security countermeasures, whereby only the intended recipient can decipher the cryptography.
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