Struct RailFence

pub struct RailFence { /* private fields */ }

A Rail-fence cipher implementation.

Implementations

impl RailFence

pub fn new(key: usize) -> Self

Takes the key for the Rail-fence cipher and returns a corresponding RailFence struct.

Panics

• If key is less than or equal to 0.

Trait Implementations

impl Cipher for RailFence

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

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

Example

use ciphers::{Cipher, RailFence};

let rail_fence = RailFence::new(4);

let ctext = rail_fence.encipher("DEFENDTHEEASTWALLOFTHECASTLE");
assert_eq!(ctext.unwrap(), "DTTFSEDHSWOTATFNEAALHCLEELEE");

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

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

Example

use ciphers::{Cipher, RailFence};

let rail_fence = RailFence::new(4);

let ptext = rail_fence.decipher("DTTFSEDHSWOTATFNEAALHCLEELEE");
assert_eq!(ptext.unwrap(), "DEFENDTHEEASTWALLOFTHECASTLE");