CC3100: measures for WPA2 Issue in CC3100SDK

takeshi matsuzaki

Expert 2030 points

Part Number: CC3100
Other Parts Discussed in Thread: , UNIFLASH

Hello,
I know WPA2 Issue was fixed for CC3100 from this thread.
e2e.ti.com/.../632869
Can you explane what measures were used to solve this issue?

I'm not a expert of cryptographic but "GTK rekeying" seems to be a measure for this problem, generally.
Is that used in recent CC3100SDK?

Regards,
Takeshi Matsuzaki.

over 7 years ago

0 Jan D over 7 years ago

Guru 79915 points

Hi Takeshi,

To solve this vulnerability you need to upload proper ServicePack into CC3100 (respectively serial flash). It is also recommended (but not mandatory) use latest SDK version. Service pack can be uploaded:
- by sl_ filesystem API from host
- by Uniflash software
- by OTA update if its used

Jan

0 takeshi matsuzaki over 7 years ago in reply to Jan D

Expert 2030 points

Hi Jan,

So could you explane which technology is applied to solve this vulnerability in the latest SDK?

Regards,
Takeshi Matsuzaki

0 Jan D over 7 years ago in reply to takeshi matsuzaki

Guru 79915 points

Hi Takeshi,

I am not aware how was fixed this particular vulnerability in Service Pack. Please wait for answer from TI.

Jan

0 takeshi matsuzaki over 7 years ago in reply to Jan D

Expert 2030 points

Dear Tiers,

I wanna information about the technology applied to solve the vulnerability in the latest SDK.
This request is from my customer, cryptography experts.

I understand that you can't disclose information about this kind of technology,
so as far as it's all right with you is OK.
And if not at all, it'll be OK too.

Regards,
Takeshi Matsuzaki.

0 Toby over 7 years ago in reply to takeshi matsuzaki

TI__Mastermind 35030 points

I don't believe this information is released.

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CC3100: measures for WPA2 Issue in CC3100SDK