Gurux DLMS SHA256 does not work correctly with C client.

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By labasvakaras, 15 January, 2023
Forums
General discussion

used GXDLMSDirector and everything works fine. But when I try to use C example client with these arguments:
./gurux.dlms.client.bin -h localhost -p 4061 -c 22 -a HighSHA256 -P Gurux -T 4142434445464748
I get error:
Connecting to localhost:4061
InitializeConnection
Access Error : Device reports Read-Write denied.

Also tried to use .NET client and everything works fine.

with Java server i get this error:
Jan 15, 2023 4:59:48 PM gurux.dlms.objects.GXDLMSAssociationLogicalName replyToHlsAuthentication
INFO: Invalid CtoS:3DC5E28B54872419BF5A79DE3B16C92EC1E576080A93973C950034D1C5D39817-4BABD61F121477FC9C3B869189477136E47B5A671A9B0A99404B2E6A0B14DC09
Client Disconnected.

is there any known problem with SHA256 and C library? Other security (md5, sha1, GMAC) works fine. Also, with other languages client works fine aswell.

Also in not working version i have this payload:
7E A0 4C 03 2D 10 9E C8 E6 E6 00 60 3E A1 09 06 07 60 85 74 05 08 01 01 8A 02 07 80 8B 07 60 85 74 05 08 02 06 AC 12 80 10 70
38 9C CE 67 B3 59 AC 56 AB 55 2A 15 8A 45 22 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 00 1E 1D FF FF 13 8B 7E

With gurux translator i can see, that MechanismName Value is null.