|
Security
Encrypt data
on a hard disk by using Encrypting File
System (EFS).
Windows 2000 includes greater security than
other versions of windows, with its Encrypting
File System (EFS). It is based on public and
private key encryption. The file system
automatically generates an encryption
certificate for the user along with a private
key. You can encrypt individual files or
folders, only on the NTFS file system.
When a user is logged on, they don't have to
decrypt files to use them EFS automatically
detects an encrypted file, locates the users
private key and decrypts the file.
To encrypt a file or folder
In explorer select the file or folder you
want to encrypt, choose properties
Choose advanced button to display the
advanced attributes
Check the Encrypt Contents To Secure Data
box
To remove encryption from a file or folder,
follow directions above and uncheck the Encrypt
Contents To Secure Data box.
You can also encrypt file and folders from the
DOS command prompt using cipher.exe If
you do not use any command line options cipher
will just display the encryption status of the
folder.
cipher [/e | /d] [/s:dir] [/i]
[/q] [dirname]
/e Encrypts specified directory
/d Decrypts specified directory
/s : dir Specifies the directory to
encrypt or decrypt
/i Ignors errors
/q Specifies a directory
dirname
|
