Cipher Mode; Authentication Type; Authentication Tag Length - Dialogic DMG1000 User Manual

Parameter Reference
3.2.2.6

Cipher Mode

Description: Specifies the cipher used to encrypt voice packets.
Note: Plain text is essentially no encryption and should be used only for testing purposes. For no
encryption, you should specify RTP ONLY in the
Allowed Values:
• Plain_Text = Use Plain_Text as the cipher (No encryption - for testing purposes only)
Note: Plain_Text is not supported in Version 5.1 SU2 Software.
• AES_Counter_Mode = Use AES_Counter_Mode as the cipher
Default Value = AES_Counter_Mode
INI File Parameter Name = srtpEncodeType
3.2.2.7

Authentication Type

Description: Specifies the type of packet authentication used with Secure RTP. It is recommended
that you enable authentication when using Secure RTP.
Allowed Values:
None = No authentication is used
•
Note: None is not supported in Version 5.1 SU2 Software.
• SHA1 = SHA1 authentication type is used
Default Value = SHA1
INI File Parameter Name = srtpAuthType
3.2.2.8

Authentication Tag Length

Description: Specifies the length of the authentication tag transmitted with the voice packet. A 32-
bit tag length should be used when network loading is a concern.
Allowed Values:
• SHA1_32_bit = Uses 32-bit authentication tag
• SHA1_80_bit = Uses 80-bit authentication tag
Default Value = SHA1_80_bit
INI File Parameter Name = srtpAuthTag
50
®
Dialogic 1000 and 2000 Media Gateway Series User's Guide — September 2007
SRTP Preference parameter.
Dialogic Corporation