CC3235MODASF: Set NULL as SlWlanSecParams_t::Key

Mauro Fantina

Genius 3800 points

Part Number: CC3235MODASF

Hello.

If I want to set PUSH-BUTTON as SECURITY

SecParams.Type = SL_WLAN_SEC_TYPE_WPS_PBC;

can I set

SecParams.Key = NULL;

On SWRU455J–February 2017–Revised February 2020 page 80 you read

SecParams.KeyLen = 0;
SecParams.Key = "";

Why not Key NULL ??

over 3 years ago

0 Michael Reymond over 3 years ago

TI__Mastermind 40965 points

Hi,

If you were to set SecParams.Key = NULL, this assignment to a null string could cause unpredictable behavior if string comparison is performed. With SecParams.Key = "", it is set to an empty string, which has the '\0' character. This is safer in case there is code that attempts to perform a strlen() or strcmp() on the key. Thus, you should set SecParams.Key = ''.

Let me know if you need more clarification or have further questions on using the CC3235.

Regards,
Michael

0 Mauro Fantina over 3 years ago in reply to Michael Reymond

Genius 3800 points

thanks

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CC3235MODASF: Set NULL as SlWlanSecParams_t::Key