Struct ciphers::PolybiusSquare

pub struct PolybiusSquare { /* fields omitted */ }

A Polybius Square cipher implementation.

Methods

impl PolybiusSquare

pub fn new(key: &str, chars: &str) -> Self

Takes the key and specified characters for the Polybius Square cipher and returns a corresponding PolybiusSquare struct.

Panics

• If key is not valid ascii.
• If key contains repeated chars.
• If chars is not valid ascii.
• If chars contains repeated chars.
• If chars is not of length sqrt(key.len()), or key is not of length chars.len()^2.

Trait Implementations

impl Cipher for PolybiusSquare

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

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

Example

use ciphers::{Cipher, PolybiusSquare};

let ps = PolybiusSquare::new("PHQGIUMEAYLNOFDXKRCVSTZWB", "ABCDE");

let ctext = ps.encipher("DEFENDTHEEASTWALLOFTHECASTLE");
assert_eq!(ctext.unwrap(), "CEBCCDBCCBCEEBABBCBCBDEAEBEDBDCACACCCDEBABBCDDBDEAEBCABC");

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

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

Example

use ciphers::{Cipher, PolybiusSquare};

let ps = PolybiusSquare::new("PHQGIUMEAYLNOFDXKRCVSTZWB", "ABCDE");

let ptext = ps.decipher("CEBCCDBCCBCEEBABBCBCBDEAEBEDBDCACACCCDEBABBCDDBDEAEBCABC");
assert_eq!(ptext.unwrap(), "DEFENDTHEEASTWALLOFTHECASTLE");