Struct ChachaPolyIetf 

pub struct ChachaPolyIetf;

An implementation of the ChachaPoly-IETF AEAD-construction

Implementations

impl ChachaPolyIetf

pub fn cipher() -> Box<dyn Cipher>

Creates a Cipher instance with ChachaPolyIetf as underlying cipher

pub fn aead_cipher() -> Box<dyn AeadCipher>

Creates a AeadCipher instance with ChachaPolyIetf as underlying AEAD cipher

Trait Implementations

impl AeadCipher for ChachaPolyIetf

fn seal( &self, buf: &mut [u8], plaintext_len: usize, ad: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

AEAD-seals plaintext_len bytes in-place in buf together with ad using key and nonce and returns the ciphertext length

fn seal_to( &self, buf: &mut [u8], plaintext: &[u8], ad: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

AEAD-seals plaintext into buf together with ad using key and nonce and returns the ciphertext length

fn open( &self, buf: &mut [u8], ciphertext_len: usize, ad: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

AEAD-opens ciphertext_len bytes in-place in buf together with ad using key and nonce and returns the plaintext length

fn open_to( &self, buf: &mut [u8], ciphertext: &[u8], ad: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

AEAD-opens ciphertext into buf together with ad using key and nonce and returns the plaintext length

impl Cipher for ChachaPolyIetf

fn info(&self) -> CipherInfo

Returns information about the cipher

fn encrypted_len_max(&self, plaintext_len: usize) -> usize

Predicts the maximum encrypted length for plaintext_len bytes

fn encrypt( &self, buf: &mut [u8], plaintext_len: usize, key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

Encrypts plaintext_len bytes in-place in buf using key and nonce and returns the ciphertext length

fn encrypt_to( &self, buf: &mut [u8], plaintext: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

Encrypts plaintext into buf using key and nonce and returns the ciphertext length

fn decrypt( &self, buf: &mut [u8], ciphertext_len: usize, key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

Decrypts ciphertext_len bytes in-place in buf using key and nonce and returns the plaintext length

fn decrypt_to( &self, buf: &mut [u8], ciphertext: &[u8], key: &[u8], nonce: &[u8], ) -> Result<usize, Box<dyn Error + 'static>>

Decrypts ciphertext into buf using key and nonce and returns the plaintext length

impl SecKeyGen for ChachaPolyIetf

fn new_sec_key( &self, buf: &mut [u8], rng: &mut dyn SecureRng, ) -> Result<usize, Box<dyn Error + 'static>>

Generates a new key into buf using rng and returns the length of the secret key