Struct PlainCodec 

pub struct PlainCodec;

The identity codec used when encryption-at-rest is disabled. On-disk bytes equal the plaintext page; integrity is provided by the page’s inner CRC.

Trait Implementations

impl Clone for PlainCodec

fn clone(&self) -> PlainCodec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PlainCodec

impl Debug for PlainCodec

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

Formats the value using the given formatter.

impl Default for PlainCodec

fn default() -> PlainCodec

Returns the “default value” for a type.

impl PageCodec for PlainCodec

fn block_size(&self) -> usize

On-disk size, in bytes, of one sealed page.

fn seal( &self, _page_id: u64, plaintext: &[u8; 16384], out: &mut [u8], ) -> Result<()>

Seal a plaintext page into its on-disk block. out must be exactly PageCodec::block_size bytes. page_id lets an AEAD codec bind the page to its position (nonce derivation).

fn open(&self, _page_id: u64, block: &[u8], out: &mut [u8; 16384]) -> Result<()>

Open an on-disk block back into a plaintext page. block must be exactly PageCodec::block_size bytes.

fn clone_box(&self) -> Box<dyn PageCodec>

Clone this codec into a new boxed instance. A codec holds only key material (or nothing), so a clone shares the same keys — this lets a component that needs its own handle, such as a disk-resident index sealing its own files, reuse the store’s codec (ADR-0019).

fn seal_record(&self, plaintext: &[u8]) -> Result<Vec<u8>>

Seal a variable-length record — a WAL frame payload — into a self-describing on-disk blob. The default is the identity transform used by PlainCodec; an AEAD codec overrides it to return [nonce][ciphertext+tag], so no plaintext record ever reaches the disk.

fn open_record(&self, sealed: &[u8]) -> Result<Vec<u8>>

Open a record produced by PageCodec::seal_record. The default is the identity transform; an AEAD codec authenticates and decrypts, returning an error on a wrong key or any tampering.