Encrypting Folders with Cipher

The `cipher` command is a powerful tool in Windows that allows you to encrypt folders, files, and directories on your local drive(s). In this article, we'll explore the various options available when using cipher to encrypt your data.

### Understanding the Basic Options

When used without the `/n` parameter, the `cipher` command compares the user's file encryption key with the default encryption key. This option is useful for verifying that your files are indeed encrypted.

The `/u` parameter stands out as a particularly useful option. When used with `/u`, cipher searches for all encrypted files on your local drive(s) and performs the operation in the specified folder and all its subfolders.

### Smart Card Encryption

When you specify the `/smartcard` parameter, cipher writes the recovery key and certificate to a smart card. This adds an extra layer of security to your encrypted files by storing the decryption keys separately from the actual data.

### Creating EFS Recovery Agent Keys

The `/k` option creates a new certificate and key for use with Encrypting File System (EFS) files. This is particularly useful when you need to generate new encryption keys for sensitive files or folders.

### Displaying Encrypted Files

The `/h` parameter allows you to display files with hidden or system attributes, which are not encrypted by default. The `/c` option provides detailed information about the encrypted file, including its location and encryption status.

### Marking Directories

By default, cipher continues to run even if errors are encountered while encrypting files. This means that directories are marked so that any new files added later will also be encrypted.

### Updating Encryption Keys

Finally, the `touch` command is used to update the encryption key for a file or directory. This is particularly useful when you need to change your encryption keys for security reasons.

In summary, cipher is a versatile tool that allows you to encrypt folders and files on your local drive(s). By understanding the various options available with `cipher`, you can ensure that your sensitive data remains secure.

Encrypt folder