Struct Aes256Ccm 

pub struct Aes256Ccm { /* private fields */ }

AES-256 CCM.

CCM authenticated encryption (NIST SP 800-38C, RFC 3610). The nonce is 7 to 13 bytes and the tag 4, 6, 8, 10, 12, 14 or 16 bytes; the tag length is the length of the tag slice passed to each call. The nonce must never repeat for a given key.

Implementations

impl Aes256Ccm

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

Initialize with key.

pub fn encrypt( &self, nonce: &[u8], aad: &[u8], buf: &mut [u8], tag: &mut [u8], ) -> Result<(), Error>

Encrypt buf in place, authenticating it and aad, writing the tag to tag.

pub fn encrypt_to( &self, nonce: &[u8], aad: &[u8], input: &[u8], output: &mut [u8], tag: &mut [u8], ) -> Result<(), Error>

Encrypt input to output, authenticating it and aad, writing the tag to tag.

pub fn decrypt( &self, nonce: &[u8], aad: &[u8], buf: &mut [u8], tag: &[u8], ) -> Result<(), Error>

Verify tag over buf and aad, then decrypt buf in place.

On Error::InvalidSignature the contents of buf are unspecified.

pub fn decrypt_to( &self, nonce: &[u8], aad: &[u8], input: &[u8], output: &mut [u8], tag: &[u8], ) -> Result<(), Error>

Verify tag over input and aad, then decrypt input to output.

On Error::InvalidSignature the contents of output are unspecified.

Trait Implementations

impl Clone for Aes256Ccm

fn clone(&self) -> Aes256Ccm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Aes256Ccm

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

Formats the value using the given formatter.