Module lea::ccm

LEA-CCM

• Example

use lea::ccm::{
	aead::{consts::U8, generic_array::arr, AeadInPlace, NewAead},
	Lea128Ccm
};

let key = arr![u8; 0x67, 0x0F, 0xD2, 0x86, 0xDF, 0x28, 0x3C, 0x66, 0x2D, 0xB8, 0x64, 0xA6, 0x81, 0xB9, 0xAB, 0x35];
let nonce = arr![u8; 0xE5, 0x9E, 0x05, 0x4A, 0x7E, 0x8B, 0x58, 0x40];
let tag = arr![u8; 0xE3, 0xE9, 0x85, 0xF0, 0xD9, 0xA5, 0x9D, 0xB0, 0xB7, 0xB4, 0xEF, 0x63, 0x19, 0x4D, 0x62, 0xFB];
let associated_data = vec![];
let ptxt = [0x0E, 0xC5, 0x26, 0xA3, 0xBE, 0x68, 0x6C, 0x8B];
let ctxt = [0x90, 0xB7, 0x61, 0x8D, 0x8A, 0x50, 0x72, 0x3C];

// Valid nonce sizes are `U7`, `U8`, `U9`, `U10`, `U11`, `U12`, `U13`.
let mut lea128ccm = Lea128Ccm::<U8>::new(&key);

// Encryption
let mut buffer = ptxt.clone();
let calculated_tag = lea128ccm.encrypt_in_place_detached(&nonce, &associated_data, &mut buffer).unwrap();
assert_eq!(buffer, ctxt);
assert_eq!(calculated_tag, tag);

// Decryption
let mut buffer = ctxt.clone();
lea128ccm.decrypt_in_place_detached(&nonce, &associated_data, &mut buffer, &tag).unwrap();
assert_eq!(buffer, ptxt);

Re-exports

pub use ccm::aead;

Type Definitions

Lea128Ccm
Lea192Ccm
Lea256Ccm