Struct XChaCha20Codec 

pub struct XChaCha20Codec<C, K, N = OsNonce> { /* private fields */ }

Authenticated XChaCha20-Poly1305 wrapper for any existing codec.

Implementations

impl<C, K> XChaCha20Codec<C, K, OsNonce>

pub fn new( inner: C, keys: K, context: impl Into<Vec<u8>>, max_plaintext_bytes: usize, ) -> Result<Self>

Uses OS randomness for nonces and binds ciphertext to context.

Errors

Rejects an empty context or zero plaintext limit.

impl<C, K, N> XChaCha20Codec<C, K, N>

pub fn with_nonce_source( inner: C, keys: K, context: impl Into<Vec<u8>>, max_plaintext_bytes: usize, nonce_source: N, ) -> Result<Self>

Injects a nonce source, primarily for deterministic testing.

Errors

Rejects an empty context or zero plaintext limit.

Trait Implementations

impl<T, C, K, N> Codec<T> for XChaCha20Codec<C, K, N>

where C: Codec<T>, K: EncryptionKeys, N: NonceSource,

fn encode(&self, value: &T) -> Result<Vec<u8>>

Encodes one value.

fn decode(&self, bytes: &[u8]) -> Result<T>

Decodes one complete value.