Merge ae5bc9c5b9 into bbebba6481

src/core/Utils.mjs

@@ -1292,9 +1292,13 @@ class Utils {
         return {
             "Space":         " ",
             "Percent":       "%",
+            "Period":        ".",
             "Comma":         ",",
             "Semi-colon":    ";",
             "Colon":         ":",
+            "Hyphen":        "-",
+            "Hash":          "#",
+            "Ampersand":     "&",
             "Tab":           "\t",
             "Line feed":     "\n",
             "CRLF":          "\r\n",

src/core/config/Categories.json

@@ -154,6 +154,8 @@
             "Enigma",
             "Bombe",
             "Multiple Bombe",
+            "Multi Tap Cipher Encode",
+            "Multi Tap Cipher Decode",
             "Typex",
             "Lorenz",
             "Colossus",

src/core/lib/Ciphers.mjs

@@ -71,6 +71,27 @@ export function genPolybiusSquare (keyword) {
     return polybius;
 }
 
+/**
+ * Generates a mapping for the MultiTap
+ *
+ * @private
+ * @author Necron3574 [kaustubhbm3574@gmail.com]
+ * @param {int,string} toggle - 1 for encode , 2 for decode, space_delim
+ * @returns {dict}
+ */
+export function getMultiTapMap (toggle,space_delim) {
+    var mapping = {"A" :"2","B":"22","C":"222","D":"3","E":"33","F":"333","G":"4","H":"44","I":"444","J":"5","K":"55","L":"555","M":"6","N":"66","O":"666","P":"7","Q":"77","R":"777","S":"7777","T":"8","U":"88","V":"888","W":"9","X":"99","Y":"999","Z":"9999"," ":space_delim};
+    if(toggle == 1)
+        return mapping;
+    else{
+        var ret = {};
+            for(var key in mapping){
+                ret[mapping[key]] = key;
+            }
+        return ret;
+    }
+}
+
 /**
  * A mapping of string formats to their classes in the CryptoJS library.
  *

src/core/operations/MultiTapCipherDecode.mjs

@@ -0,0 +1,65 @@
+/**
+ * @author Necron3574 [kaustubhbm3574@gmail.com]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils.mjs";
+import Operation from "../Operation.mjs";
+import { getMultiTapMap } from "../lib/Ciphers.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * Multi Tap Cipher Decode operation
+ */
+class MultiTapCipherDecode extends Operation {
+
+    /**
+     * MultiTapCipherDecode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Multi Tap Cipher Decode";
+        this.module = "Default";
+        this.description = "It is a simple substitution cipher which substitutes the alphabets to their corresponding taps on a mobile phone.<br><br>e.g. <code>adg</code> becomes <code>2-3-4</code>";
+        this.infoURL = "https://wikipedia.org/wiki/Multi-tap";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Delimiter",
+                type: "option",
+                value: ["Hyphen","Space", "Comma", "Semi-colon", "Colon", "Line feed"]
+            },
+            {
+              name : "Representation of Space",
+              type: "option",
+              value: ["Hash","Period","Percent","Ampersand"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        if(input.length == 0)
+          return "";
+        const delim = Utils.charRep(args[0] || "Hyphen");
+        const space_delim = Utils.charRep(args[1] || "Hash");
+        var dmap = getMultiTapMap(2,space_delim);
+        var enc_list = input.split(delim);
+        var plaintext = "";
+        for(let i=0;i<enc_list.length;i++){
+            if(dmap[enc_list[i]] == undefined)
+                throw new OperationError("Invalid Input\nThe numbers must range from 2-9 and must be separated by the delimiter chosen");
+            plaintext += dmap[enc_list[i]];
+        }
+        return plaintext;
+    }
+}
+
+export default MultiTapCipherDecode;

src/core/operations/MultiTapCipherEncode.mjs

@@ -0,0 +1,64 @@
+/**
+ * @author Necron3574 [kaustubhbm3574@gmail.com]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Utils from "../Utils.mjs";
+import { getMultiTapMap } from "../lib/Ciphers.mjs";
+import OperationError from "../errors/OperationError.mjs";
+/**
+ * Multi Tap Cipher Encode operation
+ */
+class MultiTapCipherEncode extends Operation {
+
+    /**
+     * MultiTapCipherEncode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Multi Tap Cipher Encode";
+        this.module = "Default";
+        this.description = "It is a simple substitution cipher which substitutes the alphabets to their corresponding taps on a mobile phone.<br><br>e.g. <code>adg</code> becomes <code>2-3-4</code>";
+        this.infoURL = "https://wikipedia.org/wiki/Multi-tap";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Delimiter",
+                type: "option",
+                value: ["Hyphen","Space", "Comma", "Semi-colon", "Colon", "Line feed"]
+            },
+            {
+              name : "Representation of Space",
+              type: "option",
+              value: ["Hash","Period","Percent","Ampersand"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+      const delim = Utils.charRep(args[0] || "Hyphen");
+      const space_delim = Utils.charRep(args[1] || "Hash");
+      var emap = getMultiTapMap(1,space_delim);
+      var plaintext = input.toUpperCase();
+      var ciphertext = "";
+      for(let i=0;i<plaintext.length;++i){
+          if(emap[plaintext.charAt(i)] == undefined)
+            throw new OperationError("The input must be only alphabets");
+          ciphertext += emap[plaintext.charAt(i)];
+          if(i!=plaintext.length-1)
+              ciphertext += delim;
+      }
+      return ciphertext;
+    }
+}
+
+export default MultiTapCipherEncode;