Struct Aes256Gcm 

pub struct Aes256Gcm(/* private fields */);

AES-256 in Galois Counter Mode.

Implementations

impl Aes256Gcm

pub fn new(key: &[u8; 32]) -> Self

Create a new AEAD context for the given key.

Trait Implementations

impl Aead for Aes256Gcm

type Tag = [u8; 16]

The type of tags produced by this AEAD. Generally a u8 array of fixed length.

type Nonce = [u8; 12]

The type of nonces used by this AEAD. Generally a u8 array of fixed length.

fn seal(&self, nonce: &Self::Nonce, plaintext: &[u8], ad: &[u8]) -> Vec<u8>

Encrypt and authenticate plaintext, and authenticate ad, returning the result as a freshly allocated Vec. The nonce must never be used in any sealing operation with the same key, ever again.

fn seal_in_place( &self, nonce: &Self::Nonce, plaintext: &mut [u8], ad: &[u8], ) -> Self::Tag

Encrypt and authenticate plaintext, and authenticate ad, writing the ciphertext over plaintext and additionally returning the calculated tag, which is usually appended to the ciphertext. The nonce must never be used in any sealing operation with the same key, ever again.

fn open( &self, nonce: &Self::Nonce, ciphertext: &[u8], ad: &[u8], ) -> Option<Vec<u8>>

Authenticate ciphertext and ad and, if valid, decrypt ciphertext, returning the original plaintext in a newly allocated Vec. The nonce must be the same value as given to the sealing operation that produced ciphertext.

fn open_in_place( &self, nonce: &Self::Nonce, ciphertext: &mut [u8], tag: &Self::Tag, ad: &[u8], ) -> Result<(), InvalidCiphertext>

Authenticate ciphertext and ad using tag and, if valid, decrypt ciphertext in place. The nonce must be the same value as given to the sealing operation that produced ciphertext.