Enable Encryption
Rijndael is the block cipher algorithm chosen by the National Institute of Science and Technology
(NIST) as the Advanced Encryption Standard (AES) to be used by the US government. The
NetDirect supports 128-, 192-, and 256-bit encryption key lengths.
Note: Configuring encryption should be done through a local connection to the serial port
of the NetDirect, or via a secured network connection. Initial configuration information,
including the encryption key, is sent in clear text over the network.
To configure AES encryption on the NetDirect:
Enable Encryption (N) Y
Key length in bits (0): 128
Change Keys (N) Y
Enter Keys: **-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**
1. When prompted to enable encryption, select
Y
.
2. When prompted, enter the encryption key length. The NetDirect supports 128-, 192-, and
256-bit encryption key lengths.
3. When prompted to change keys, select
Y
.
4. At the
Enter Keys
prompt, enter your encryption key. The encryption keys are entered in
hexadecimal. The hexadecimal values are echoed as asterisks to prevent onlookers from
seeing the key. Hexadecimal values are 0-9 and A-F.
For a 128-bit key length, enter 32 hexadecimal characters.
For a 192-bit key length, enter 48 hexadecimal characters.
For a 256-bit key length, enter 64 hexadecimal characters
5. Continue pressing
Enter
until you return to the Change Setup menu.
6. From the Change Setup menu, select option
9
to save and exit.
Encryption only applies to the port selected for data tunneling (default 10001), regardless of
whether you are using TCP or UDP.
Generally, one of these situations applies:
Encrypted NetDirect-to-NetDirect communication. Be sure to configure both NetDirect devices
with the same encryption key.
Third-party application to NetDirect-encrypted communication: NetDirect uses standard AES
encryption protocols. To communicate successfully, products and applications on the peer side
must use the same protocols and the same encryption key as the NetDirect.
Secure Com Port Redirector
provides an encrypted connection from Windows-based
applications to the NetDirect. Information about SCPR is at
http://www.lantronix.com/support/downloads/?p=SCPR
. A 30-day trial version of SCPR is
available.
Note: Developers can license the Encryption Library Suite.
See
Summary of Contents for NetDirect
Page 1: ...NetDirect User Guide ...
