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AES-128 and SHA-1 at CC2540

Other Parts Discussed in Thread: BLE-STACK, CC2540, AES-128

Dear BLE experts,

I plan to develop a BLE-based cryptographic token. Right now, I am deciding about which platform (TI, CSR, Nordic Semi) to use.

I would appreciate if somebody could answer the following questions:

i) Can the user application running on CC254x share the AES coprocessor with BLE-Stack?

ii) Does anybody have some AES-128 and SHA-1 benchmarks (data processed vs. time) for a user code (i.e. without crypto coprocessor) running on e.g. CC2540 Keyfob?

Thank you very much in advance.

Kind regards,

Tom

  • Did you get an answer on your queries or have you solved your requirement with CC254X?

    I have a similar need - want my application to use the AES Crypto to encrypt some payload on the CC254X with AES 128 before transmitting over BLE. I am not sure if this will interfere with the normal functioning of the BLE Stack.

    Further I am not sure if the AES Key that I use can be stored securely?

    Experts - any insights?