Struct crypto_secretstream::Stream

pub struct Stream { /* private fields */ }

AEAD for libsodium’s secretstream. Better to use PushStream & PullStream as these take care of rekeying and computing the next nonce.

Implementations

impl Stream

pub const ABYTES: usize = 17usize

Extra bytes per message compared to the plaintext

pub fn init(key: &Key, header: Header) -> Self

Create a new Stream.

Trait Implementations

impl AeadCore for Stream

type NonceSize = <StreamCipherCoreWrapper<ChaChaCore<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B1>, B0>>> as IvSizeUser>::IvSize

The length of a nonce.

type TagSize = <Poly1305 as BlockSizeUser>::BlockSize

The maximum length of the nonce.

type CiphertextOverhead = <Poly1305 as BlockSizeUser>::BlockSize

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

fn generate_nonce( rng: impl CryptoRng + RngCore ) -> GenericArray<u8, Self::NonceSize>where GenericArray<u8, Self::NonceSize>: Default,

Generate a random nonce for this AEAD algorithm.

impl AeadInPlace for Stream

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

Encrypt the data in-place, returning the authentication tag

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

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.