Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL User's Guide download pdf (Page 35)

Data flow: Sending an email message from a

device using BlackBerry transport layer

encryption

1. A sender sends an email message from a BlackBerry device to a recipient.

2. The device performs the following actions:

a compresses the email message

b encrypts the compressed email message using the message key

c encrypts the message key using the device transport key of the device

d sends the encrypted message key and encrypted email message to the BlackBerry Enterprise Server

3. The BlackBerry Enterprise Server performs the following actions:

a decrypts the message key using the device transport key

b decrypts the email message using the message key

c decompresses the email message

d forwards the email message to the recipient

Security Technical Overview Encrypting data that the BlackBerry Enterprise Server and a device send to each other

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Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL User's Guide Page 35