Struct cryptoauthlib_sys::atca_aes_gcm_ctx

#[repr(C)]
pub struct atca_aes_gcm_ctx {
    pub key_id: u16,
    pub key_block: u8,
    pub cb: [u8; 16],
    pub data_size: u32,
    pub aad_size: u32,
    pub h: [u8; 16],
    pub j0: [u8; 16],
    pub y: [u8; 16],
    pub partial_aad: [u8; 16],
    pub partial_aad_size: u32,
    pub enc_cb: [u8; 16],
    pub ciphertext_block: [u8; 16],
}

Context structure for AES GCM operations.

Fields

key_id: u16

!< Key location. Can either be a slot number or ATCA_TEMPKEY_KEYID for TempKey.

key_block: u8

!< Index of the 16-byte block to use within the key location for the actual key.

cb: [u8; 16]

!< Counter block, comprises of nonce + count value (16 bytes).

data_size: u32

!< Size of the data being encrypted/decrypted in bytes.

aad_size: u32

!< Size of the additional authenticated data in bytes.

h: [u8; 16]

!< Subkey for ghash functions in GCM.

j0: [u8; 16]

!< Precounter block generated from IV.

y: [u8; 16]

!< Current GHASH output

partial_aad: [u8; 16]

!< Partial blocks of data waiting to be processed

partial_aad_size: u32

!< Amount of data in the partial block buffer

enc_cb: [u8; 16]

!< Last encrypted counter block

ciphertext_block: [u8; 16]

!< Last ciphertext block

Trait Implementations

impl Clone for atca_aes_gcm_ctx

fn clone(&self) -> atca_aes_gcm_ctx

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for atca_aes_gcm_ctx

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for atca_aes_gcm_ctx