RE: AES Function question

user108933 — Wed, 15 Jun 2022 07:31:52 GMT

Hello,

Here is the documentation of the https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/lib_crypto_aes.html?cp=8_1_3_11_15_0 where you can find details of Advanced Encryption Standard.

There are two ways to use the AES related functions API, either by using nrf_crypto_init, nrf_crypto_aes_key_set, nrf_crypto_aes_iv_set (for some ciphers), nrf_crypto_aes_update, nrf_crypto_aes_finalize or though the nrf_crypto_aes_crypt. The latter option does all the operations in a single integrated step. SO, here the step is you have to initialize the context first, then to set the keys and initialization vector and later finalize the aes cryptography. How these functions work are briefly described in the above link.

I hope it helps.

Thanks.

Best Regards,

Kazi Afroza Sultana