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CC3235SF: Porting mbedtls problem

Lemon Wang
Prodigy 190 points
Part Number: CC3235SF

Tool/software:

Hi   TI engineer

      I porting mbedtls to simplelink_cc32xx_sdk_6_10_00_05. Now i found the performance of encryption and decryption is bad. Is there have mbedtls hardware-accelerated example or SDK porting mbedtls?

  • +1
    Guru 77955 points

    Hi Lemon,

    There is no such example at CC32xx SDK for hardware acceleration of AES, HASH and ECC at Mbed TLS. If you need such hardware acceleration, you need to implement this by yourself. But for such thing you will need to have high knowledge of cryptography, otherwise you may to ends with security vulnerability.

    Yes, it is expected that software cryptography performance at CC3235 will be poor. CC3235 have application processor Cortex-M4 at 80MHz. For reasonable fast software cryptography you will need at leat 500MHz Cortex-M7 with enabled instruction and data cache.

    Jan