Motorola PTP 500 User's Guide download pdf (Page 217)

13 AES Encryption

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13 AES Encryption

This section describes how to encrypt a PTP 500 link.

The following topics are described in this section:

• 13.1 Encryption Standard Used

• 13.2 Upgrading for Link Encryption

• 13.3 Configuring Link Encryption

• 13.4 Wireless Link Encryption FAQ

13.1 Encryption Standard Used

The Motorola PTP 500 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.

13.2 Upgrading for Link Encryption

Link Encryption is not available in the standard PTP 500 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.

13.3 Configuring Link Encryption

After purchasing AES encryption for the PTP 500 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 500 Series bridge.

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Motorola PTP 500 User's Guide Page 217