Struct Affine

pub struct Affine { /* private fields */ }

An Affine cipher implementation.

Implementations

impl Affine

pub fn new(a: i32, b: i32) -> Self

Takes the two keys for the Affine cipher and returns a corresponding Affine struct.

Panics

• If a is outside the range [1, 26).
• If b is outside the range [0, 26).
• If a is not relatively prime to 26.

Trait Implementations

impl Cipher for Affine

fn encipher(&self, ptext: &str) -> CipherResult

Enciphers the given plaintext (a str reference) using the Affine cipher and returns the ciphertext as a CipherResult.

Example

use ciphers::{Cipher, Affine};

let affine = Affine::new(7, 11);

let ctext = affine.encipher("DEFENDTHEEASTWALLOFTHECASTLE");
assert_eq!(ctext.unwrap(), "GNUNYGOINNLHOJLKKFUOINZLHOKN");

fn decipher(&self, ctext: &str) -> CipherResult

Deciphers the given ciphertext (a str reference) using the Affine cipher and returns the plaintext as a CipherResult.

Example

use ciphers::{Cipher, Affine};

let affine = Affine::new(7, 11);

let ptext = affine.decipher("GNUNYGOINNLHOJLKKFUOINZLHOKN");
assert_eq!(ptext.unwrap(), "DEFENDTHEEASTWALLOFTHECASTLE");