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| SAS System Options for Encryption |
NETENCRYPTKEYLEN= System Option
Specifies the key length that is used by the encryption algorithm for encrypted client/server data transfers.
| Client: | Optional |
| Server: | Optional |
| Alias: | NETENCRKEY= |
| Default: | 0 |
| Valid in: | configuration file, OPTIONS statement, SAS System Options window, SAS invocation |
| Operating Environments: | UNIX, Windows, z/OS |
| Category: | Communications: Networking and Encryption |
| PROC OPTIONS Group= | Communications |
| Syntax | |
| Syntax Description | |
| Details |
Syntax |
| NETENCRYPTKEYLEN= 0 | 40 | 128 |
Syntax Description
- 0
-
specifies that the maximum key length that is supported at both the client and the server is used.
- 40
-
specifies a key length of 40 bits for the RC2 and RC4 algorithms.
- 128
-
specifies a key length of 128 bits for the RC2 and RC4 algorithms. If either the client or the server does not support 128-bit encryption, the client cannot connect to the server.
| Details |
The NETENCRYPTKEYLEN= option supports only the RC2 and RC4 algorithms. The SASProprietary, DES, TripleDES, SSL, and AES algorithms are not supported.
By default, if you try to connect a computer that is capable of only a 40-bit key length to a computer that is capable of both a 40-bit and a 128-bit key length, the connection is made using the lesser key length. If both computers are capable of 128-bit key lengths, a 128-bit key length is used.
Using longer keys consumes more CPU cycles. If you do not need a high level of encryption, set NETENCRYPTKEYLEN=40 to decrease CPU usage.
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Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.