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AES-128 CBC Hardware

FedeRini
Prodigy 30 points
Other Parts Discussed in Thread: AES-128, MSP430FR5969

Hello,

I need to develop a firmware that implement encryption/decryption with AES-128 CBC.

I would use AES256 Accelerator build into my MSP430FR5969.

For test I follow the example "AES256 Encryption and Decryption Example". I tested the system with a 128-bit key and everything works.

Now I need to encrypt/decrypt data using CBC encryption mode, but I'm trouble. 

My question are:

* Must I use DMA during encryption/decryption for transfert?

* Is there any example of CBC hardware encryption?

Thanks!

Federico

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