Struct Envelope 

pub struct Envelope {
    pub ephemeral_pub: [u8; 32],
    pub nonce: [u8; 12],
    pub ciphertext: Vec<u8>,
}

Decrypt-able envelope produced by encrypt. Carries the sender’s ephemeral X25519 pubkey + the AEAD nonce + the ciphertext-with-tag. Envelope::to_bytes / Envelope::from_bytes handle the substrate-stable wire shape; storage callers persist the bytes verbatim into the encrypted_envelope column.

Fields

ephemeral_pub: [u8; 32]

nonce: [u8; 12]

ciphertext: Vec<u8>

Implementations

impl Envelope

pub fn to_bytes(&self) -> Vec<u8>

Serialise the envelope to its on-disk byte layout. See module docs for the layout. Length = 1 + 32 + 12 + ciphertext.len().

pub fn from_bytes(bytes: &[u8]) -> Result<Self>

Parse the envelope back out of its on-disk byte layout. Refuses unknown versions and truncated buffers with a typed error so a corrupted row surfaces cleanly instead of decrypting garbage.

Errors

• Returns Err when the buffer is too short to contain the fixed header (version + ephemeral_pub + nonce) plus at least one byte of ciphertext-with-tag.
• Returns Err when the leading version byte is not ENVELOPE_VERSION.

Trait Implementations

impl Clone for Envelope

fn clone(&self) -> Envelope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Envelope

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

Formats the value using the given formatter.