User's Manual

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17 AES Encryption Upgrade
314
17 AES Encryption Upgrade
The Motorola PTP 600 Series bridges support link encryption using the NIST approved
Advanced Encryption Standard, HFIPS-197
UTH. This standard specifies AES (Rijndael) as a
FIPS-approved symmetric encryption algorithm that may be used by U.S. Government
organizations (and others) to protect sensitive information.
Link Encryption is not available in the standard PTP 600 Series system. A license key to
enable link encryption can be purchased from your Motorola Point-to-Point Distributor or
Solutions Provider. AES can be activated on receipt of the activation on the Motorola
Systems Support Page.
There are two levels of encryption that are available to purchase:
128-bit
128 and 256-bit
Option 1 allows the user to encrypt all traffic sent over the wireless link using 128-bit
encryption. Option 2 allows the user to encrypt traffic using either 128 or 256-bit encryption.
The configuration process for both encryption variants is identical except for the selection of
algorithm. The following configuration example is for a 256-bit encryption key.
17.1 Configuring Link Encryption
After purchasing AES encryption for the PTP 600 Series wireless link, two new license keys
will be issued, one for each end of the wireless link. The following configuration process gives
a step by step guide to enabling AES link encryption on a PTP 600 Series bridge.
17.1.1 License Keys
The first step
when configuring link encryption is to enter the new license keys in both 600
Series wireless units.
Figure 179 shows the license key data entry screen. T
his screen can only be accessed by the
system administrator. If you do not have access to the PTP 600 Series system administration
pages then please contact your designated system administrator.