Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL Guide de l'utilisateur télécharger pdf (Page 119)

d sends the message that is encrypted using BlackBerry transport layer encryption and PGP encryption to the

BlackBerry Enterprise Server

2. The BlackBerry Enterprise Server removes the BlackBerry transport layer encryption and sends the PGP encrypted

message to the recipient.

Data flow: Receiving a PGP encrypted message

If a recipient installs the PGP Support Package for BlackBerry smartphones on a BlackBerry device, the device decrypts

incoming PGP encrypted messages.

1. A sender uses the PGP technology on the email application to encrypt an email message using the PGP public key of

the recipient.

2. The BlackBerry Enterprise Server performs the following actions:

a retrieves the email message from the messaging server

b uses BlackBerry transport layer encryption to encrypt the PGP encrypted message

c sends the email message encrypted using BlackBerry transport layer encryption and PGP encryption to the device

3. The device performs the following actions:

a decrypts the BlackBerry transport layer encryption and stores the PGP encrypted message in the flash memory of

the device

b decrypts the PGP encrypted message using the PGP private key of the recipient and displays the contents of the

email message when the recipient opens the email message on the device

Security Technical Overview Extending messaging security to a device

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Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL Guide de l'utilisateur Page 119