Cisco Cisco Packet Data Gateway (PDG)
hmac
Specifies the HMAC (keyed-Hash Message Authentication Code) for the SSL cipher suite.
Product
SCM (P-CSCF, A-BG)
Privilege
Administrator
Command Modes
Exec > Global Configuration > Context Configuration > Cipher Suite Configuration
configure > context context_name > cipher-suite cipher_suite_name
Entering the above command sequence results in the following prompt:
[
context_name
]
host_name
(cfg-ctx-cipher-suite)#
Syntax Description
hmac { sha1 }
default hmac
default hmac
default
Sets the HMAC option to its default value of SHA-1.
hmac sha1
Specifies the SHA-1 (Secure Hash Algorithm-1) HMAC for the SSL cipher suite.SHA-1 uses a 160-bit secret
key and produces a 160-bit digest.
key and produces a 160-bit digest.
Usage Guidelines
Use this command to specify the SHA-1 HMAC for the SSL cipher suite. The default and only currently
available option is SHA-1.
available option is SHA-1.
A keyed-Hash Message Authentication Code, or HMAC, is a type of message authentication code (MAC)
calculated using a cryptographic hash function in combination with a secret key to verify both data integrity
and message authenticity.
calculated using a cryptographic hash function in combination with a secret key to verify both data integrity
and message authenticity.
Examples
The following command sets the HMAC option to its default value, which is SHA-1:
hmac sha1
hmac sha1
Command Line Interface Reference, Modes C - D, StarOS Release 19
393
Cipher Suite Configuration Mode Commands
hmac