mirrors/CyberChef
1
0
Fork 0
mirror of https://github.com/gchq/CyberChef.git synced 2025-05-10 16:25:01 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Delete BaconCipherDecode.mjs

Browse source
This commit is contained in:
Macide Celik 2019-10-28 08:39:06 +03:00 • committed by GitHub
parent 6d138f345f
commit 7c52008055
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 0 additions and 107 deletions
Download patch file Download diff file Expand all files Collapse all files

107
src/core/operations/BaconCipherDecode.mjs
View file

@ -1,107 +0,0 @@
/**
* @author Karsten Silkenbäumer [github.com/kassi]
* @copyright Karsten Silkenbäumer 2019
* @license Apache-2.0
*/
import Operation from "../Operation";
import {
BACON_ALPHABETS,
BACON_TRANSLATION_CASE, BACON_TRANSLATION_AMNZ, BACON_TRANSLATIONS, BACON_CLEARER_MAP, BACON_NORMALIZE_MAP,
swapZeroAndOne
} from "../lib/Bacon";
/**
* Bacon Cipher Decode operation
*/
class BaconCipherDecode extends Operation {
/**
* BaconCipherDecode constructor
*/
constructor() {
super();
this.name = "Bacon Cipher Decode";
this.module = "Default";
this.description = "Bacon's cipher or the Baconian cipher is a method of steganography devised by Francis Bacon in 1605. A message is concealed in the presentation of text, rather than its content.";
this.infoURL = "https://wikipedia.org/wiki/Bacon%27s_cipher";
this.inputType = "string";
this.outputType = "string";
this.args = [
{
"name": "Alphabet",
"type": "option",
"value": Object.keys(BACON_ALPHABETS)
},
{
"name": "Translation",
"type": "option",
"value": BACON_TRANSLATIONS
},
{
"name": "Invert Translation",
"type": "boolean",
"value": false
}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const [alphabet, translation, invert] = args;
const alphabetObject = BACON_ALPHABETS[alphabet];
// remove invalid characters
input = input.replace(BACON_CLEARER_MAP[translation], "");
// normalize to unique alphabet
if (BACON_NORMALIZE_MAP[translation] !== undefined) {
input = input.replace(/./g, function (c) {
return BACON_NORMALIZE_MAP[translation][c];
});
} else if (translation === BACON_TRANSLATION_CASE) {
const codeA = "A".charCodeAt(0);
const codeZ = "Z".charCodeAt(0);
input = input.replace(/./g, function (c) {
const code = c.charCodeAt(0);
if (code >= codeA && code <= codeZ) {
return "1";
} else {
return "0";
}
});
} else if (translation === BACON_TRANSLATION_AMNZ) {
const words = input.split(/\s+/);
const letters = words.map(function (e) {
if (e) {
const code = e[0].toUpperCase().charCodeAt(0);
return code >= "N".charCodeAt(0) ? "1" : "0";
} else {
return "";
}
});
input = letters.join("");
}
if (invert) {
input = swapZeroAndOne(input);
}
// group into 5
const inputArray = input.match(/(.{5})/g) || [];
let output = "";
for (let i = 0; i < inputArray.length; i++) {
const code = inputArray[i];
const number = parseInt(code, 2);
output += number < alphabetObject.alphabet.length ? alphabetObject.alphabet[number] : "?";
}
return output;
}
}
export default BaconCipherDecode;