Type Definition lpc55s6x_pac::hashcrypt::cryptcfg::W

type W = W<u32, CRYPTCFG>;

Writer for register CRYPTCFG

Methods

impl W

pub fn msw1st_out(&mut self) -> MSW1ST_OUT_W

Bit 0 - If 1, OUTDATA0 will be read Most significant word 1st for AES. Else it will be read in normal little endian - Least significant word 1st. Note: only if allowed by configuration.

pub fn swapkey(&mut self) -> SWAPKEY_W

Bit 1 - If 1, will Swap the key input (bytes in each word).

pub fn swapdat(&mut self) -> SWAPDAT_W

Bit 2 - If 1, will SWAP the data and IV inputs (bytes in each word).

pub fn msw1st(&mut self) -> MSW1ST_W

Bit 3 - If 1, load of key, IV, and data is MSW 1st for AES. Else, the words are little endian. Note: only if allowed by configuration.

pub fn aesmode(&mut self) -> AESMODE_W

Bits 4:5 - AES Cipher mode to use if plain AES

pub fn aesdecrypt(&mut self) -> AESDECRYPT_W

Bit 6 - AES ECB direction. Only encryption used if CTR mode or manual modes such as CFB

pub fn aessecret(&mut self) -> AESSECRET_W

Bit 7 - Selects the Hidden Secret key vs. User key, if provided. If security levels are used, only the highest level is permitted to select this.

pub fn aeskeysz(&mut self) -> AESKEYSZ_W

Bits 8:9 - Sets the AES key size

pub fn aesctrpos(&mut self) -> AESCTRPOS_W

Bits 10:12 - Halfword position of 16b counter in IV if AESMODE is CTR (position is fixed for Salsa and ChaCha). Only supports 16b counter, so application must control any additional bytes if using more. The 16-bit counter is read from the IV and incremented by 1 each time. Any other use CTR should use ECB directly and do its own XOR and so on.

pub fn streamlast(&mut self) -> STREAMLAST_W

Bit 16 - Is 1 if last stream block. If not 1, then the engine will compute the next "hash".

pub fn icbsz(&mut self) -> ICBSZ_W

Bits 20:21 - This sets the ICB size between 32 and 128 bits, using the following rules. Note that the counter is assumed to occupy the low order bits of the IV.

pub fn icbstrm(&mut self) -> ICBSTRM_W

Bits 22:23 - The size of the ICB-AES stream that can be pushed before needing to compute a new IV/ctr (counter start). This optimizes the performance of the stream of blocks after the 1st.