Struct dco3_crypto::Crypter

pub struct Crypter<'b, C, State = Open> {
    pub crypter: C,
    pub buffer: &'b mut Vec<u8>,
    pub count: usize,
    pub plain_file_key: PlainFileKey,
    pub mode: Mode,
    pub state: PhantomData<State>,
}

Allows chunked en- and decryption. Holds a reference to a buffer to store the mssage, processed bytes as count and the used plain file key and mode. Requires generic type annotation The type ‘C’ represents an internal handler for the encryption functions with chunking

Fields

crypter: C

buffer: &'b mut Vec<u8>

count: usize

plain_file_key: PlainFileKey

mode: Mode

state: PhantomData<State>

Trait Implementations

impl<'b> ChunkedEncryption<'b, Crypter> for Crypter<'b, Crypter>

fn try_new_for_decryption( plain_file_key: PlainFileKey, buffer: &'b mut Vec<u8> ) -> Result<Self, DracoonCryptoError>

Returns a Crypter for decryption by passing the plain file key and a writable (mutable) buffer

fn try_new_for_encryption( buffer: &'b mut Vec<u8> ) -> Result<Self, DracoonCryptoError>

Returns a Crypter for enryption by passing a writable (mutable) buffer

fn update(&mut self, data: &[u8]) -> Result<usize, DracoonCryptoError>

Update the Crypter with given data

fn set_tag(&mut self, tag: &[u8]) -> Result<(), DracoonCryptoError>

Set the tag before finalizing the encryption

fn finalize(&mut self) -> Result<usize, DracoonCryptoError>

Finalize decryption / encryption

fn get_message(&mut self) -> &Vec<u8>

Get the message (result of encryption / decryption) from buffer

fn get_plain_file_key(&self) -> PlainFileKey

Get the plain file key used for either encryption or decryption