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CC3100: CC3100/CC3120 and OpenSSL v3.0.8

Joselito Go
Expert 5020 points
Part Number: CC3100
Other Parts Discussed in Thread: CC3120, , MIKROELEKTRONIKA, CC3200

Tool/software:

Hi Experts,

My customer below is asking if the OpenSSL v3 is compatible with CC3100 and CC3120 modules and other query. Please see below and please advise.

My name is Nenad, and I work at Mikroelektronika from Serbia.

Our project uses your CC3100 and CC3120 modules on the server side, configured as SSL sockets for secure communication. So far, we have been using OpenSSL v1.1.1 on the PC (client side) to connect to the SSL socket.
We are currently transitioning to a newer version, OpenSSL v3.0.8, and we are interested in knowing whether it is possible to use this newer OpenSSL version with these modules. Specifically, we would like to know if they support secure renegotiation and newer encryption protocols (currently, we are using AES256-SHA), as this cipher, which is at security level 2, is not available.

Regards,

Josel

  • 0
    TI__Guru 61455 points

    Hi,

    CC3100/CC3200 is limited in terms of cipher suites that are supported.

    Again, I am not sure whether newer openssl versions restrict some older suites but the common security level would be set according to supported suites exchanged between the two peers.

    The CC3100 NWP user guide denotes support for the following suites:

    Regards,

    Shlomi

  • 0 in reply to Shlomi Itzhak
    TI__Expert 5020 points

    Hi Shlomi, 

    Okay. Do the CC3100 and CC3120 support safe renegotiation?
    How can I force the desired algorithm on the server using the CC3100?  

    Best regards,

    Josel

  • 0 in reply to Joselito Go
    TI__Guru 61455 points

    the list applies to cc3100 only.

    For cc3120, there are additional suites.

    there is no TLS renegotiation.

    if you run server/client on cc31xx, you can force cipher suites by the SL_SO_SECMETHOD and SL_SO_SECURE_MASK options.

    You can read in the NWP guide or look at the code (under sl_Socket.h)