Struct sam4l::aes::Aes

pub struct Aes<'a> {
    registers: *const AesRegisters,
    client: Cell<Option<&'a Client<'a>>>,
    source: TakeCell<'a, [u8]>,
    dest: TakeCell<'a, [u8]>,
    write_index: Cell<usize>,
    read_index: Cell<usize>,
    stop_index: Cell<usize>,
}

Fields

registers: *const AesRegisters

client: Cell<Option<&'a Client<'a>>>

source: TakeCell<'a, [u8]>

dest: TakeCell<'a, [u8]>

write_index: Cell<usize>

read_index: Cell<usize>

stop_index: Cell<usize>

Methods

impl<'a> Aes<'a>

pub const fn new() -> Aes<'a>

fn enable_clock(&self)

fn disable_clock(&self)

fn enable_interrupts(&self)

fn disable_interrupts(&self)

fn disable_input_interrupt(&self)

fn busy(&self) -> bool

fn set_mode(&self, encrypting: bool, mode: ConfidentialityMode)

fn input_buffer_ready(&self) -> bool

fn output_data_ready(&self) -> bool

fn try_set_indices(&self, start_index: usize, stop_index: usize) -> bool

fn write_block(&self) -> bool

fn read_block(&self) -> bool

pub fn handle_interrupt(&self)

Handle an interrupt, which will indicate either that the AESA's input buffer is ready for more data, or that it has completed a block of output for us to consume

Trait Implementations

impl<'a> AES128<'a> for Aes<'a>

fn enable(&self)

Enable the AES hardware. Must be called before any other methods

fn disable(&self)

Disable the AES hardware

fn set_client(&'a self, client: &'a Client<'a>)

Set the client instance which will receive crypt_done() callbacks

fn set_key(&self, key: &[u8]) -> ReturnCode

Set the encryption key. Returns EINVAL if length is not AES128_KEY_SIZE

fn set_iv(&self, iv: &[u8]) -> ReturnCode

Set the IV (or initial counter). Returns EINVAL if length is not AES128_BLOCK_SIZE

fn start_message(&self)

Begin a new message (with the configured IV) when crypt() is next called. Multiple calls to crypt() may be made between calls to start_message(), allowing the encryption context to extend over non-contiguous extents of data.

fn crypt(
    &'a self,
    source: Option<&'a mut [u8]>,
    dest: &'a mut [u8],
    start_index: usize,
    stop_index: usize
) -> Option<(ReturnCode, Option<&'a mut [u8]>, &'a mut [u8])>

Request an encryption/decryption

impl<'a> AES128Ctr for Aes<'a>

fn set_mode_aes128ctr(&self, encrypting: bool)

Call before AES128::crypt() to perform AES128Ctr

impl<'a> AES128CBC for Aes<'a>

fn set_mode_aes128cbc(&self, encrypting: bool)

Call before AES128::crypt() to perform AES128CBC