Struct aes256ctr_poly1305aes::Aes256CtrPoly1305Aes

pub struct Aes256CtrPoly1305Aes {
    pub(crate) aes256ctr_key: GenericArray<u8, U32>,
    pub(crate) aes128_key: GenericArray<u8, U16>,
    pub(crate) poly1305_r: GenericArray<u8, U16>,
}

Authenticated Encryption with Additional Data (AEAD) using AES256-CTR and Poly1305-AES.

See the toplevel documentation for a usage example.

Fields

aes256ctr_key: GenericArray<u8, U32>

Secret key for Aes256Ctr

aes128_key: GenericArray<u8, U16>

Secret key for Aes128r

poly1305_r: GenericArray<u8, U16>

Secret value r for Poly1305

Implementations

impl Aes256CtrPoly1305Aes

pub(crate) fn cipher_from_nonce( &self, nonce: &Nonce<Self> ) -> Cipher<Ctr64BE<Aes256>>

pub fn new(key: &Key) -> Self

New AEAD using AES256-CTR and Poly1305-AES from the given 64-byte key. The first 32 bytes are used as key for AES256-CTR. The following 16 bytes are used as key for the AES128 used in Poly1305-AES. The last 16 bytes are used as r in Poly1305-AES.

Trait Implementations

impl AeadCore for Aes256CtrPoly1305Aes

type NonceSize = UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>

The length of a nonce.

type TagSize = UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>

The maximum length of the nonce.

type CiphertextOverhead = UTerm

The upper bound amount of additional space required to support a ciphertext vs. a plaintext.

impl AeadInPlace for Aes256CtrPoly1305Aes

fn encrypt_in_place_detached( &self, nonce: &Nonce<Self>, associated_data: &[u8], buffer: &mut [u8] ) -> Result<Tag, Error>

Encrypt the data in-place, returning the authentication tag

fn decrypt_in_place_detached( &self, nonce: &Nonce<Self>, associated_data: &[u8], buffer: &mut [u8], tag: &Tag ) -> Result<(), Error>

Decrypt the message in-place, returning an error in the event the provided authentication tag does not match the given ciphertext (i.e. ciphertext is modified/unauthentic)

fn encrypt_in_place( &self, nonce: &GenericArray<u8, Self::NonceSize>, associated_data: &[u8], buffer: &mut dyn Buffer ) -> Result<(), Error>

Encrypt the given buffer containing a plaintext message in-place.

fn decrypt_in_place( &self, nonce: &GenericArray<u8, Self::NonceSize>, associated_data: &[u8], buffer: &mut dyn Buffer ) -> Result<(), Error>

Decrypt the message in-place, returning an error in the event the provided authentication tag does not match the given ciphertext.

impl Clone for Aes256CtrPoly1305Aes

fn clone(&self) -> Aes256CtrPoly1305Aes

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Aes256CtrPoly1305Aes

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

Formats the value using the given formatter.

impl Drop for Aes256CtrPoly1305Aes

fn drop(&mut self)

Executes the destructor for this type.