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Original question:

CC3220SF: TLS 1.2 Default Ciphers and x509 Key Usage

CC3230SF: Default ciphers for NWP HTTP server?

ironman
Intellectual 720 points
Part Number: CC3230SF
Other Parts Discussed in Thread: CC3220SF, , CC3200

Tool/software:

Hello,

I understand that the NWP HTTP server on CC3220SF only supports the following four ciphers and that you cannot customize them.

SECURE_MASK_TLS_RSA_WITH_AES_256_CBC_SHA
SECURE_MASK_TLS_RSA_WITH_AES_128_CBC_SHA256
SECURE_MASK_TLS_RSA_WITH_AES_256_CBC_SHA256
SECURE_MASK_TLS_RSA_WITH_AES_128_GCM_SHA256

Is this the same for the CC3230SF?  If not, what are the supported ciphers and is there a way to customize them?

Thank you.

  • 0
    TI__Mastermind 21565 points

    you have been assigned to one of our engineers and they will respond shortly.

  • 0 in reply to AB
    TI__Genius 13561 points

    Hello,

    The Technical Reference Manual has an extremely detailed explanation of the CC3230 cryptography I recommend chapters 16-18

    https://www.ti.com/lit/ug/swru543a/swru543a.pdf 

    Best,

    Rogelio

  • 0 in reply to RogelioD
    Guru 78485 points

    Hi Rogelio,

    No. Please check source code of CC3235 NWP what cipher suites are configured for NWP webserver.

    But what I can say from my side, that cipher suites for NWP webserver are not configurable from end user application code. I think easiest way is to run webserver at application processor. CC3235/CC3230 have enough resources for this task.

    Jan

  • 0 in reply to Jan D
    Intellectual 720 points

    Thank you.  Is there an example that runs an HTTP server in the application processor?  I don't see any in the SDK.

  • 0 in reply to RogelioD
    Intellectual 720 points

    Hi Rogelio, any update on the default ciphers supported in the HTTP server in the NWP source code?  I know the supported ciphers are listed in the Technical Reference Manual, but from what I understand, only a subset of them are supported when running an HTTP server on the NWP, and they are not configurable.

  • 0 in reply to ironman
    Guru 78485 points

    Hi,

    There is not such example in SDK. But you can use TI HTTP library or use own HTTP server library. Example of using HTTP webserver you can find at the CC3200 SDK. Code is not compatible with CC3220/CC3235, but it is good for inspiration. For example I use own HTTP server at CC3220 and performance is much better than NWP webserver.

    Jan