Struct cipher_crypt::affine::Affine

pub struct Affine { /* fields omitted */ }

An Affine cipher.

This struct is created by the new() method. See its documentation for more.

Trait Implementations

impl Cipher for Affine

type Key = (usize, usize)

type Algorithm = Affine

fn new(a_b: (usize, usize)) -> Result<Affine, &'static str>

Initialise an Affine cipher given the keys a and b.

Will return Err if one of the following conditions is detected:

• a or b are not in the inclusive range 1 - 26.
• a has a factor in common with 26.

fn encrypt(&self, message: &str) -> Result<String, &'static str>

Encrypt a message using an Affine cipher.

Examples

Basic usage:

use cipher_crypt::{Cipher, Affine};

let a = Affine::new((3, 7)).unwrap();
assert_eq!("Hmmhnl hm qhvu!", a.encrypt("Attack at dawn!").unwrap());

fn decrypt(&self, ciphertext: &str) -> Result<String, &'static str>

Decrypt a message using an Affine cipher.

Examples

Basic usage:

use cipher_crypt::{Cipher, Affine};

let a = Affine::new((3, 7)).unwrap();
assert_eq!("Attack at dawn!", a.decrypt("Hmmhnl hm qhvu!").unwrap());