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  3. SS2: Invalid Block Cipher Key / Invalid Authentication Key

SS2: invalid block cipher key / Invalid authentication key

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By amfragal , 23 September, 2021
Forums
DLMSDirector

Hi Gurux team!
We are using Gurux DLMS Translator tool in Gurux Director to analyze communication with meter using SS2 and Digital signature function enable with ECDSA P384.
In order to establish association with meter, auth and block cipher Keys pass to be 32 bytes length (instead of 16 bytes in SS0 and SS1). When indicating 32 bytes length in Ciphering tab in DLMS translator, with Secuity Suite 2 selected, we face these errors:
- invalid block cipher key
- Invalid authentication key

Is Gurux Translator tool ready to be used with SS2 and 32 bytes keys?
Version used: 8.2.2106.1501
Thanks in advance!!

Profile picture for user Kurumi

Kurumi

4 years 8 months ago

Hi,

Hi,

I'm not sure if any one of our clients using SS2 at the moment. I can check this if you send the trace and certificate to me by email.

BR,
Mikko

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