Struct StreamOpener 

pub struct StreamOpener { /* private fields */ }

Incremental decryption of one file’s content stream.

Implementations

impl StreamOpener

pub fn new(header: &FileHeader, key: &SecureKey) -> StreamOpener

pub fn chunk_ciphertext_len(&self) -> usize

Ciphertext bytes to feed per StreamOpener::open_chunk call; only the final chunk may be shorter.

pub fn open_chunk( &mut self, ciphertext: &[u8], is_last: bool, ) -> Result<SecureBytes, FileError>

Opens the next chunk. is_last marks that no more ciphertext follows; sealing and opening must agree on which chunk is final or authentication fails (this is what detects truncation).

pub fn finished(&self) -> bool

True once the final chunk has been opened. A stream that ends without this being true was truncated.