gxdn
By Administrator, 23 January, 2018
Security setup object is used to do define settings used for ciphered (secure) connection.

Properties

  • 1. Logical Name
    Logical name of the object.
  • 2. Security policy
    Defines how messages are secured.
  • 3. Security suite
    Used security algorithm.
  • 4. Client system title
    Client system title.
  • 5. Server system title
    Server system title.

Actions

  • 1. Security activate
    Activates and strengthens the security policy.
  • 2. Key transfer
    Transfer symmetric keys.
  • 3. Key agreement
    Agrees public/private keys.
  • 4. Generate key pair
    Generate public/private key pair.
  • 5. Generate certificate request
    Generates certificate request
  • 6. Import certificate
    Imports certificate.
  • 7. Export certificate
    Exports certificate.
  • 8. Remove certificate
    Removes certificate.

Access data from ANSI C

///////////////////////////////////////////////////////////////////////
//This method adds example security setup object.
//malloc is not used and for that reason data must allocate for all attributes.
///////////////////////////////////////////////////////////////////////
int addSecuritySetup()
{
    int ret;
    //Define server system title.
    static unsigned char SERVER_SYSTEM_TITLE[8] = { 0 };
    //Define client system title.
    static unsigned char CLIENT_SYSTEM_TITLE[8] = { 0 };
    const unsigned char ln[6] = { 0,0,43,0,1,255 };
    if ((ret = INIT_OBJECT(securitySetup, DLMS_OBJECT_TYPE_SECURITY_SETUP, ln)) == 0)
    {
        //Add FLAG ID.
        memcpy(SERVER_SYSTEM_TITLE, "GRX", 3);
        //ADD serial number.
        memcpy(SERVER_SYSTEM_TITLE + 4, &SERIAL_NUMBER, 4);
        BB_ATTACH(securitySetup.serverSystemTitle, SERVER_SYSTEM_TITLE, 8);
        BB_ATTACH(securitySetup.clientSystemTitle, CLIENT_SYSTEM_TITLE, 8);
        securitySetup.securityPolicy = DLMS_SECURITY_POLICY_NOTHING;
        securitySetup.securitySuite = DLMS_SECURITY_SUITE_AES_GCM_128;
    }
    return ret;
}