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CC3200: AES iv randomness

anish singh1
Prodigy 180 points
Part Number: CC3200

I want to send some crucial data to server.

For that i want to use aes-256-cbc encryption. Now as aes-cbc requires IV for encryption, i want to know if cc3200 can generate random IV and how reliable(random) it is?How can i read generated IV?

Do i have to send generated IV to server for decryption?

Which aes mode is good for protecting important data? 

  • 0
    TI__Mastermind 40965 points
    Hi Anish,

    The CC3200 has a hardware true random number generator. However, on the CC3200(not on the CC3220) it is only accessible by the NWP. So, for SSL/TLS, the AES IV should be generated by the RNG, and automatically used by the NWP. So, for sending crucial data to your server, you should enable TLS on your networking socket.

    Let me know if you need more clarification or need more help on understanding the crypto capabilities of the CC3200.

    Regards,
    Michael