McAfee office 3.1 User Manual
PGP Personal Privacy
194
McAfee Office
Using PGP/MIME
If you are using an email application with one of the plug-ins that supports the
PGP/MIME standard, and you are communicating with another user whose
email application also supports this standard, both of you can automatically
encrypt and decrypt your email messages and any attached files when you
send or retrieve your email. All you have to do is turn on the PGP/MIME
encryption and signing functions from the PGP Preferences dialog box.
PGP/MIME standard, and you are communicating with another user whose
email application also supports this standard, both of you can automatically
encrypt and decrypt your email messages and any attached files when you
send or retrieve your email. All you have to do is turn on the PGP/MIME
encryption and signing functions from the PGP Preferences dialog box.
When you receive email from someone who uses the PGP/MIME feature, the
mail arrives with an attached icon in the message window indicating that it is
PGP/MIME encoded.
mail arrives with an attached icon in the message window indicating that it is
PGP/MIME encoded.
To decrypt the text and file attachments in PGP/MIME encapsulated email
and to verify any digital signatures, you simply double-click the lock and quill
icon. Attachments are still encrypted if PGP/MIME is not used, but the
decryption process is usually more involved for the recipient.
and to verify any digital signatures, you simply double-click the lock and quill
icon. Attachments are still encrypted if PGP/MIME is not used, but the
decryption process is usually more involved for the recipient.
From the Windows Explorer
You can encrypt and sign or decrypt and verify files such as word processing
documents, spreadsheets and video clips directly from the Windows Explorer.
If you are not using an email application such as Qualcomm Eudora, which
supports the PGP/MIME standard, or an application such as Exchange or
Outlook that doesn’t require PGP to encrypt or sign files, you must use this
method to attach files that you want to send along with your email messages.
You might also want to encrypt and decrypt files that you store on your own
computer to prevent others from accessing them. To access PGP functions
from the Windows Explorer, choose the appropriate option from the PGP
submenu of the File menu. The options that appear depend on the current
state of the file you have selected. If the file has not yet been encrypted or
signed, then the options for performing these functions appear on the menu.
If the file is already encrypted or signed, then options for decrypting and
verifying the contents of the file are displayed.
documents, spreadsheets and video clips directly from the Windows Explorer.
If you are not using an email application such as Qualcomm Eudora, which
supports the PGP/MIME standard, or an application such as Exchange or
Outlook that doesn’t require PGP to encrypt or sign files, you must use this
method to attach files that you want to send along with your email messages.
You might also want to encrypt and decrypt files that you store on your own
computer to prevent others from accessing them. To access PGP functions
from the Windows Explorer, choose the appropriate option from the PGP
submenu of the File menu. The options that appear depend on the current
state of the file you have selected. If the file has not yet been encrypted or
signed, then the options for performing these functions appear on the menu.
If the file is already encrypted or signed, then options for decrypting and
verifying the contents of the file are displayed.
Selecting recipients
When you send email to someone whose email application is supported by the
PGP plug-ins, the recipient’s email address determines which keys to use
when encrypting the contents. However, if you enter a user name or email
address that does not correspond to any of the keys on your public keyring or
if you are encrypting from the clipboard or from the Windows Explorer, you
must manually select the recipient’s public key from the PGP Key Selection
dialog box. To select a recipient’s public key, simply drag the icon representing
their key into the Recipient’s list box and then click OK. .
PGP plug-ins, the recipient’s email address determines which keys to use
when encrypting the contents. However, if you enter a user name or email
address that does not correspond to any of the keys on your public keyring or
if you are encrypting from the clipboard or from the Windows Explorer, you
must manually select the recipient’s public key from the PGP Key Selection
dialog box. To select a recipient’s public key, simply drag the icon representing
their key into the Recipient’s list box and then click OK. .