Blackberry BOLD 9700 - V 6.0 User Manual page 99

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 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 and PIN messages.
1. When you are 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 key > Options.
3. Change the Use Conventional Encryption field to Yes.
4. Press the key > 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
2. Highlight a PGP key.
3. Press the key > Continue.
Download the PGP key used to sign or encrypt a message
If a PGP® key is not included in a received message or is not already stored in the key store on your BlackBerry® device, you can download the
PGP key. If you use the PGP® Universal Server, you might not be able to download the sender's PGP key, or your device might download the
sender's PGP key from the PGP Universal Server automatically.
1. In a message, highlight the encryption status indicator or a digital signature indicator.
key > Attach > PGP Keys.
Messages
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