Struct Ccm 

pub struct Ccm<C, M, N>
where
    C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt,
    M: ArraySize + TagSize,
    N: ArraySize + NonceSize,
{ /* private fields */ }

CCM instance generic over an underlying block cipher.

Type parameters:

• C: block cipher.
• M: size of MAC tag in bytes, valid values: U4, U6, U8, U10, U12, U14, U16.
• N: size of nonce, valid values: U7, U8, U9, U10, U11, U12, U13.

Trait Implementations

impl<C, M, N> AeadCore for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt, M: ArraySize + TagSize, N: ArraySize + NonceSize,

const TAG_POSITION: TagPosition = TagPosition::Postfix

The AEAD tag position.

type NonceSize = N

The length of a nonce.

type TagSize = M

The maximum length of the tag.

impl<C, M, N> AeadInOut for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt, M: ArraySize + TagSize, N: ArraySize + NonceSize,

fn encrypt_inout_detached( &self, nonce: &Nonce<N>, adata: &[u8], buffer: InOutBuf<'_, '_, u8>, ) -> Result<Tag<Self::TagSize>, Error>

Encrypt the data in the provided InOutBuf, returning the authentication tag.

fn decrypt_inout_detached( &self, nonce: &Nonce<N>, adata: &[u8], buffer: InOutBuf<'_, '_, u8>, tag: &Tag<Self::TagSize>, ) -> Result<(), Error>

Decrypt the data in the provided InOutBuf, returning an error in the event the provided authentication tag is invalid for the given ciphertext (i.e. ciphertext is modified/unauthentic).

fn encrypt_in_place( &self, nonce: &Array<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: &Array<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<C, M, N> Clone for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt + Clone, M: ArraySize + TagSize + Clone, N: ArraySize + NonceSize + Clone,

fn clone(&self) -> Ccm<C, M, N>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<C, M, N> Debug for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt, M: ArraySize + TagSize, N: ArraySize + NonceSize,

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

Formats the value using the given formatter.

impl<C, M, N> From<C> for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt, M: ArraySize + TagSize, N: ArraySize + NonceSize,

fn from(cipher: C) -> Self

Converts to this type from the input type.

impl<C, M, N> KeyInit for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt + KeyInit, M: ArraySize + TagSize, N: ArraySize + NonceSize,

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

Create new value from fixed size key.

fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength>

Create new value from variable size key.

fn generate_key<R>(rng: &mut R) -> Array<u8, Self::KeySize>

where R: CryptoRng,

👎Deprecated since 0.2.0:

use the Generate trait impl on Key instead

Available on crate feature rand_core only.

DEPRECATED: generate random key using the provided CryptoRng.

impl<C, M, N> KeySizeUser for Ccm<C, M, N>

where C: BlockSizeUser<BlockSize = U16> + BlockCipherEncrypt + KeyInit, M: ArraySize + TagSize, N: ArraySize + NonceSize,

type KeySize = <C as KeySizeUser>::KeySize

Key size in bytes.

fn key_size() -> usize

Return key size in bytes.