T-Mobile Blackberry Bold 9780 User's Guide download pdf (Page 87)

PGP protected messages

For more information about PGP protected messages, visit www.blackberry.com/docs/smartphones. Click your BlackBerry® device model and

view the User Guide.

PGP protected message basics

About signing and encrypting messages

If your email account uses a BlackBerry® Enterprise Server that supports this feature, you can digitally sign or encrypt messages to add another

level of security to email messages and PIN messages that you send from your BlackBerry device. Digital signatures are designed to help

recipients verify the authenticity and integrity of messages that you send. When you digitally sign a message using your private key, recipients

use your public key to verify that the message is from you and that the message has not been changed.

Encryption is designed to keep messages confidential. When you encrypt a message, your device uses the recipient’s public key to encrypt the

message. Recipients use their private key to decrypt the message.

To send an encrypted PIN message, you must have a PIN and an email address for the contact in your contact list. Your device uses the email

address in your contact list to locate a PGP® key or certificate for the contact.

Sign or encrypt a message

You can sign or encrypt email messages and PIN messages.

1. When composing a message, change the Encoding field.

2. If necessary, change the Classification field.

Encrypt a PGP protected message with a pass phrase

By default, your BlackBerry® device uses your PGP® key to encrypt messages.

1. When composing a message, change the Encoding field to one that uses encryption.

2. Press the Menu key.

3. Click Options.

4. Change the Use Conventional Encryption field to Yes.

5. Press the Menu key.

6. Click Save.

Using a secure method, let the recipient know what the pass phrase is.

Attach a PGP key to a message

You can attach a PGP® key to email messages and PIN messages.

1. When composing a message, press the Menu key.

2. Click Attach PGP Keys.

User Guide

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T-Mobile Blackberry Bold 9780 User's Guide Page 87