[Seagull-users] Setting Digest-HA1 AVP in MAA(Diameter) using Seagull (1.8.2)

[agnivesh k. <kum...@gm...>]

Hi All,
                I was trying to use Seagull(1.8.2) as a *Diameter *server
for the Cx interface. In response to a MAR request, the script needs to
send a *MAA response* with “*Digest-HA1*” AVP (part of the grouped
SIP-Digest-Authenticate AVP, which in turn is part of the
SIP-Auth-Data-Item AVP) that contains H(A1). The Diameter Client(CSM) can
use H(A1) to calculate the expected Digest response, according to this
challenge.

                Based on Seagull Documentation, I tried both ways i.e. SIP
authentication and Radius authentication, but couldn’t succeed in getting
HA1 calculated as expected.

When I tried the SIP Authentication way as below in my scenario file, it
threw “2021-10-21.07:20:19.790|T|E_ACTION_SCEN_SET_VALUE_METHOD_EXTERN:
problem when using external method (md5 or AKA)” error.

<set-value name="Digest-HA1" method="authenticationSip"

format="username=alice;password=12345;auth=Digest
realm=\"open-ims.test\",
algorithm=MD5;method=REGISTER;uri=sip:testuri.com"></set-value>


When I tried the Radius Authentication way as below in my scenario file, I
see* junk value* being set for Digest-HA1 AVP.

<set-value name="Digest-HA1" method="authenticationRadius" message_part="all"
	format="shared_secret=9000000009@open-ims.test:open-ims.test:12345"></set-value>

AVP: Digest-HA1(121) l=24 f=-M- val=a\024\r\030�,����.�\032��\b
    AVP Code: 121 Digest-HA1
    AVP Flags: 0x40, Mandatory: Set
    AVP Length: 24
    Digest-HA1: a\024\r\030�,����.�\032��\b

I tried a few combinations like hard coding few/all parameters, reading
from the previous message with the action “store” etc. but couldn’t
succeed. Attaching scenario/dictionary files for your reference.
Can you please suggest if you are aware of any method (like
crypto_method_radius for Radius Auth) which I can use to set Digest-HA1
AVP. Thanks in advance.

Thanks,
Agnivesh K