9.45.0

CHANGELOG.md

@@ -13,6 +13,18 @@ All major and minor version changes will be documented in this file. Details of
 
 ## Details
 
+### [9.44.0] - 2022-07-08
+- Added 'LZString Compress' and 'LZString Decompress' operations [@crespyl] | [#1266]
+
+### [9.43.0] - 2022-07-08
+- Added 'ROT13 Brute Force' and 'ROT47 Brute Force' operations [@mikecat] | [#1264]
+
+### [9.42.0] - 2022-07-08
+- Added 'LS47 Encrypt' and 'LS47 Decrypt' operations [@n1073645] | [#951]
+
+### [9.41.0] - 2022-07-08
+- Added 'Caesar Box Cipher' operation [@n1073645] | [#1066]
+
 ### [9.40.0] - 2022-07-08
 - Added 'P-list Viewer' operation [@n1073645] | [#906]
 
@@ -297,6 +309,10 @@ All major and minor version changes will be documented in this file. Details of
 
 
 
+[9.44.0]: https://github.com/gchq/CyberChef/releases/tag/v9.44.0
+[9.43.0]: https://github.com/gchq/CyberChef/releases/tag/v9.43.0
+[9.42.0]: https://github.com/gchq/CyberChef/releases/tag/v9.42.0
+[9.41.0]: https://github.com/gchq/CyberChef/releases/tag/v9.41.0
 [9.40.0]: https://github.com/gchq/CyberChef/releases/tag/v9.40.0
 [9.39.0]: https://github.com/gchq/CyberChef/releases/tag/v9.39.0
 [9.38.0]: https://github.com/gchq/CyberChef/releases/tag/v9.38.0
@@ -422,6 +438,8 @@ All major and minor version changes will be documented in this file. Details of
 [@t-8ch]: https://github.com/t-8ch
 [@hettysymes]: https://github.com/hettysymes
 [@swesven]: https://github.com/swesven
+[@mikecat]: https://github.com/mikecat
+[@crespyl]: https://github.com/crespyl
 
 [8ad18b]: https://github.com/gchq/CyberChef/commit/8ad18bc7db6d9ff184ba3518686293a7685bf7b7
 [9a33498]: https://github.com/gchq/CyberChef/commit/9a33498fed26a8df9c9f35f39a78a174bf50a513
@@ -500,6 +518,7 @@ All major and minor version changes will be documented in this file. Details of
 [#917]: https://github.com/gchq/CyberChef/pull/917
 [#934]: https://github.com/gchq/CyberChef/pull/934
 [#948]: https://github.com/gchq/CyberChef/pull/948
+[#951]: https://github.com/gchq/CyberChef/pull/951
 [#952]: https://github.com/gchq/CyberChef/pull/952
 [#965]: https://github.com/gchq/CyberChef/pull/965
 [#966]: https://github.com/gchq/CyberChef/pull/966
@@ -511,6 +530,7 @@ All major and minor version changes will be documented in this file. Details of
 [#1045]: https://github.com/gchq/CyberChef/pull/1045
 [#1049]: https://github.com/gchq/CyberChef/pull/1049
 [#1065]: https://github.com/gchq/CyberChef/pull/1065
+[#1066]: https://github.com/gchq/CyberChef/pull/1066
 [#1083]: https://github.com/gchq/CyberChef/pull/1083
 [#1189]: https://github.com/gchq/CyberChef/pull/1189
 [#1242]: https://github.com/gchq/CyberChef/pull/1242
@@ -518,3 +538,6 @@ All major and minor version changes will be documented in this file. Details of
 [#1313]: https://github.com/gchq/CyberChef/pull/1313
 [#1326]: https://github.com/gchq/CyberChef/pull/1326
 [#1364]: https://github.com/gchq/CyberChef/pull/1364
+[#1264]: https://github.com/gchq/CyberChef/pull/1264
+[#1266]: https://github.com/gchq/CyberChef/pull/1266
+

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "cyberchef",
-  "version": "9.41.0",
+  "version": "9.45.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "cyberchef",
-      "version": "9.41.0",
+      "version": "9.45.0",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
@@ -23561,6 +23561,11 @@
         "yallist": "^4.0.0"
       }
     },
+    "lz-string": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.4.4.tgz",
+      "integrity": "sha1-wNjq82BZ9wV5bh40SBHPTEmNOiY="
+    },
     "make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cyberchef",
-  "version": "9.41.0",
+  "version": "9.45.0",
   "description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.",
   "author": "n1474335 <n1474335@gmail.com>",
   "homepage": "https://gchq.github.io/CyberChef",
@@ -133,6 +133,7 @@
     "lodash": "^4.17.21",
     "loglevel": "^1.8.0",
     "loglevel-message-prefix": "^3.0.0",
+    "lz-string": "^1.4.4",
     "markdown-it": "^13.0.1",
     "moment": "^2.29.3",
     "moment-timezone": "^0.5.34",

src/core/config/Categories.json

@@ -79,6 +79,8 @@
             "DES Decrypt",
             "Triple DES Encrypt",
             "Triple DES Decrypt",
+            "LS47 Encrypt",
+            "LS47 Decrypt",
             "RC2 Encrypt",
             "RC2 Decrypt",
             "RC4",
@@ -86,7 +88,10 @@
             "SM4 Encrypt",
             "SM4 Decrypt",
             "ROT13",
+            "ROT13 Brute Force",
             "ROT47",
+            "ROT47 Brute Force",
+            "ROT8000",
             "XOR",
             "XOR Brute Force",
             "Vigenère Encode",
@@ -177,7 +182,8 @@
             "Bit shift right",
             "Rotate left",
             "Rotate right",
-            "ROT13"
+            "ROT13",
+            "ROT8000"
         ]
     },
     {
@@ -321,7 +327,9 @@
             "Bzip2 Decompress",
             "Bzip2 Compress",
             "Tar",
-            "Untar"
+            "Untar",
+            "LZString Compress",
+            "LZString Decompress"
         ]
     },
     {

src/core/lib/LS47.mjs

@@ -0,0 +1,244 @@
+/**
+ * @author n1073645 [n1073645@gmail.com]
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+
+import OperationError from "../errors/OperationError.mjs";
+
+const letters = "_abcdefghijklmnopqrstuvwxyz.0123456789,-+*/:?!'()";
+const tiles = [];
+
+/**
+ * Initialises the tiles with values and positions.
+ */
+export function initTiles() {
+    for (let i = 0; i < 49; i++)
+        tiles.push([letters.charAt(i), [Math.floor(i/7), i % 7]]);
+}
+
+/**
+ * Rotates the key "down".
+ *
+ * @param {string} key
+ * @param {number} col
+ * @param {number} n
+ * @returns {string}
+ */
+function rotateDown(key, col, n) {
+    const lines = [];
+    for (let i = 0; i < 7; i++)
+        lines.push(key.slice(i*7, (i + 1) * 7));
+    const lefts = [];
+    let mids = [];
+    const rights = [];
+    lines.forEach((element) => {
+        lefts.push(element.slice(0, col));
+        mids.push(element.charAt(col));
+        rights.push(element.slice(col+1));
+    });
+    n = (7 - n % 7) % 7;
+    mids = mids.slice(n).concat(mids.slice(0, n));
+    let result = "";
+    for (let i = 0; i < 7; i++)
+        result += lefts[i] + mids[i] + rights[i];
+    return result;
+}
+
+/**
+ * Rotates the key "right".
+ *
+ * @param {string} key
+ * @param {number} row
+ * @param {number} n
+ * @returns {string}
+ */
+function rotateRight(key, row, n) {
+    const mid = key.slice(row * 7, (row + 1) * 7);
+    n = (7 - n % 7) % 7;
+    return key.slice(0, 7 * row) + mid.slice(n) + mid.slice(0, n) + key.slice(7 * (row + 1));
+}
+
+/**
+ * Finds the position of a letter in the tiles.
+ *
+ * @param {string} letter
+ * @returns {string}
+ */
+function findIx(letter) {
+    for (let i = 0; i < tiles.length; i++)
+        if (tiles[i][0] === letter)
+            return tiles[i][1];
+    throw new OperationError("Letter " + letter + " is not included in LS47");
+}
+
+/**
+ * Derives key from the input password.
+ *
+ * @param {string} password
+ * @returns {string}
+ */
+export function deriveKey(password) {
+    let i = 0;
+    let k = letters;
+    for (const c of password) {
+        const [row, col] = findIx(c);
+        k = rotateDown(rotateRight(k, i, col), i, row);
+        i = (i + 1) % 7;
+    }
+    return k;
+}
+
+/**
+ * Checks the key is a valid key.
+ *
+ * @param {string} key
+ */
+function checkKey(key) {
+    if (key.length !== letters.length)
+        throw new OperationError("Wrong key size");
+    const counts = new Array();
+    for (let i = 0; i < letters.length; i++)
+        counts[letters.charAt(i)] = 0;
+    for (const elem of letters) {
+        if (letters.indexOf(elem) === -1)
+            throw new OperationError("Letter " + elem + " not in LS47");
+        counts[elem]++;
+        if (counts[elem] > 1)
+            throw new OperationError("Letter duplicated in the key");
+    }
+}
+
+/**
+ * Finds the position of a letter in they key.
+ *
+ * @param {letter} key
+ * @param {string} letter
+ * @returns {object}
+ */
+function findPos (key, letter) {
+    const index = key.indexOf(letter);
+    if (index >= 0 && index < 49)
+        return [Math.floor(index/7), index%7];
+    throw new OperationError("Letter " + letter + " is not in the key");
+}
+
+/**
+ * Returns the character at the position on the tiles.
+ *
+ * @param {string} key
+ * @param {object} coord
+ * @returns {string}
+ */
+function findAtPos(key, coord) {
+    return key.charAt(coord[1] + (coord[0] * 7));
+}
+
+/**
+ * Returns new position by adding two positions.
+ *
+ * @param {object} a
+ * @param {object} b
+ * @returns {object}
+ */
+function addPos(a, b) {
+    return [(a[0] + b[0]) % 7, (a[1] + b[1]) % 7];
+}
+
+/**
+ * Returns new position by subtracting two positions.
+ * Note: We have to manually do the remainder division, since JS does not
+ * operate correctly on negative numbers (e.g. -3 % 4 = -3 when it should be 1).
+ *
+ * @param {object} a
+ * @param {object} b
+ * @returns {object}
+ */
+function subPos(a, b) {
+    const asub = a[0] - b[0];
+    const bsub = a[1] - b[1];
+    return [asub - (Math.floor(asub/7) * 7), bsub - (Math.floor(bsub/7) * 7)];
+}
+
+/**
+ * Encrypts the plaintext string.
+ *
+ * @param {string} key
+ * @param {string} plaintext
+ * @returns {string}
+ */
+function encrypt(key, plaintext) {
+    checkKey(key);
+    let mp = [0, 0];
+    let ciphertext = "";
+    for (const p of plaintext) {
+        const pp = findPos(key, p);
+        const mix = findIx(findAtPos(key, mp));
+        let cp = addPos(pp, mix);
+        const c = findAtPos(key, cp);
+        ciphertext += c;
+        key = rotateRight(key, pp[0], 1);
+        cp = findPos(key, c);
+        key = rotateDown(key, cp[1], 1);
+        mp = addPos(mp, findIx(c));
+    }
+    return ciphertext;
+}
+
+/**
+ * Decrypts the ciphertext string.
+ *
+ * @param {string} key
+ * @param {string} ciphertext
+ * @returns {string}
+ */
+function decrypt(key, ciphertext) {
+    checkKey(key);
+    let mp = [0, 0];
+    let plaintext = "";
+    for (const c of ciphertext) {
+        let cp = findPos(key, c);
+        const mix = findIx(findAtPos(key, mp));
+        const pp = subPos(cp, mix);
+        const p = findAtPos(key, pp);
+        plaintext += p;
+        key = rotateRight(key, pp[0], 1);
+        cp = findPos(key, c);
+        key = rotateDown(key, cp[1], 1);
+        mp = addPos(mp, findIx(c));
+    }
+    return plaintext;
+}
+
+/**
+ * Adds padding to the input.
+ *
+ * @param {string} key
+ * @param {string} plaintext
+ * @param {string} signature
+ * @param {number} paddingSize
+ * @returns {string}
+ */
+export function encryptPad(key, plaintext, signature, paddingSize) {
+    initTiles();
+    checkKey(key);
+    let padding = "";
+    for (let i = 0; i < paddingSize; i++) {
+        padding += letters.charAt(Math.floor(Math.random() * letters.length));
+    }
+    return encrypt(key, padding+plaintext+"---"+signature);
+}
+
+/**
+ * Removes padding from the ouput.
+ *
+ * @param {string} key
+ * @param {string} ciphertext
+ * @param {number} paddingSize
+ * @returns {string}
+ */
+export function decryptPad(key, ciphertext, paddingSize) {
+    initTiles();
+    checkKey(key);
+    return decrypt(key, ciphertext).slice(paddingSize);
+}

src/core/lib/LZString.mjs

@@ -0,0 +1,21 @@
+/**
+ * lz-string exports.
+ *
+ * @author crespyl [peter@crespyl.net]
+ * @copyright Peter Jacobs 2021
+ * @license Apache-2.0
+ */
+
+import LZString from "lz-string";
+
+export const COMPRESSION_OUTPUT_FORMATS = ["default", "UTF16", "Base64"];
+export const COMPRESSION_FUNCTIONS = {
+    "default": LZString.compress,
+    "UTF16":   LZString.compressToUTF16,
+    "Base64":  LZString.compressToBase64,
+};
+export const DECOMPRESSION_FUNCTIONS = {
+    "default": LZString.decompress,
+    "UTF16":   LZString.decompressFromUTF16,
+    "Base64":  LZString.decompressFromBase64,
+};

src/core/operations/LS47Decrypt.mjs

@@ -0,0 +1,57 @@
+/**
+ * @author n1073645 [n1073645@gmail.com]
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import * as LS47 from "../lib/LS47.mjs";
+
+/**
+ * LS47 Decrypt operation
+ */
+class LS47Decrypt extends Operation {
+
+    /**
+     * LS47Decrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "LS47 Decrypt";
+        this.module = "Crypto";
+        this.description = "This is a slight improvement of the ElsieFour cipher as described by Alan Kaminsky. We use 7x7 characters instead of original (barely fitting) 6x6, to be able to encrypt some structured information. We also describe a simple key-expansion algorithm, because remembering passwords is popular. Similar security considerations as with ElsieFour hold.<br>The LS47 alphabet consists of following characters: <code>_abcdefghijklmnopqrstuvwxyz.0123456789,-+*/:?!'()</code><br>An LS47 key is a permutation of the alphabet that is then represented in a 7x7 grid used for the encryption or decryption.";
+        this.infoURL = "https://github.com/exaexa/ls47";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Password",
+                type: "string",
+                value: ""
+            },
+            {
+                name: "Padding",
+                type: "number",
+                value: 10
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        this.paddingSize = parseInt(args[1], 10);
+
+        LS47.initTiles();
+
+        const key = LS47.deriveKey(args[0]);
+        return LS47.decryptPad(key, input, this.paddingSize);
+    }
+
+}
+
+export default LS47Decrypt;

src/core/operations/LS47Encrypt.mjs

@@ -0,0 +1,62 @@
+/**
+ * @author n1073645 [n1073645@gmail.com]
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import * as LS47 from "../lib/LS47.mjs";
+
+/**
+ * LS47 Encrypt operation
+ */
+class LS47Encrypt extends Operation {
+
+    /**
+     * LS47Encrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "LS47 Encrypt";
+        this.module = "Crypto";
+        this.description = "This is a slight improvement of the ElsieFour cipher as described by Alan Kaminsky. We use 7x7 characters instead of original (barely fitting) 6x6, to be able to encrypt some structured information. We also describe a simple key-expansion algorithm, because remembering passwords is popular. Similar security considerations as with ElsieFour hold.<br>The LS47 alphabet consists of following characters: <code>_abcdefghijklmnopqrstuvwxyz.0123456789,-+*/:?!'()</code><br>A LS47 key is a permutation of the alphabet that is then represented in a 7x7 grid used for the encryption or decryption.";
+        this.infoURL = "https://github.com/exaexa/ls47";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Password",
+                type: "string",
+                value: ""
+            },
+            {
+                name: "Padding",
+                type: "number",
+                value: 10
+            },
+            {
+                name: "Signature",
+                type: "string",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        this.paddingSize = parseInt(args[1], 10);
+
+        LS47.initTiles();
+
+        const key = LS47.deriveKey(args[0]);
+        return LS47.encryptPad(key, input, args[2], this.paddingSize);
+    }
+
+}
+
+export default LS47Encrypt;

src/core/operations/LZStringCompress.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author crespyl [peter@crespyl.net]
+ * @copyright Peter Jacobs 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+import {COMPRESSION_OUTPUT_FORMATS, COMPRESSION_FUNCTIONS} from "../lib/LZString.mjs";
+
+/**
+ * LZString Compress operation
+ */
+class LZStringCompress extends Operation {
+
+    /**
+     * LZStringCompress constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "LZString Compress";
+        this.module = "Compression";
+        this.description = "Compress the input with lz-string.";
+        this.infoURL = "https://pieroxy.net/blog/pages/lz-string/index.html";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Compression Format",
+                type: "option",
+                defaultIndex: 0,
+                value: COMPRESSION_OUTPUT_FORMATS
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const compress = COMPRESSION_FUNCTIONS[args[0]];
+        if (compress) {
+            return compress(input);
+        } else {
+            throw new OperationError("Unable to find compression function");
+        }
+    }
+
+}
+
+export default LZStringCompress;

src/core/operations/LZStringDecompress.mjs

@@ -0,0 +1,56 @@
+/**
+ * @author crespyl [peter@crespyl.net]
+ * @copyright Peter Jacobs 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+import {COMPRESSION_OUTPUT_FORMATS, DECOMPRESSION_FUNCTIONS} from "../lib/LZString.mjs";
+
+/**
+ * LZString Decompress operation
+ */
+class LZStringDecompress extends Operation {
+
+    /**
+     * LZStringDecompress constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "LZString Decompress";
+        this.module = "Compression";
+        this.description = "Decompresses data that was compressed with lz-string.";
+        this.infoURL = "https://pieroxy.net/blog/pages/lz-string/index.html";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Compression Format",
+                type: "option",
+                defaultIndex: 0,
+                value: COMPRESSION_OUTPUT_FORMATS
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const decompress = DECOMPRESSION_FUNCTIONS[args[0]];
+        if (decompress) {
+            return decompress(input);
+        } else {
+            throw new OperationError("Unable to find decompression function");
+        }
+    }
+
+
+}
+
+export default LZStringDecompress;

src/core/operations/ROT13BruteForce.mjs

@@ -0,0 +1,102 @@
+/**
+ * @author MikeCAT
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Utils from "../Utils.mjs";
+
+/**
+ * ROT13 Brute Force operation.
+ */
+class ROT13BruteForce extends Operation {
+
+    /**
+     * ROT13BruteForce constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "ROT13 Brute Force";
+        this.module = "Default";
+        this.description = "Try all meaningful amounts for ROT13.<br><br>Optionally you can enter your known plaintext (crib) to filter the result.";
+        this.infoURL = "https://wikipedia.org/wiki/ROT13";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Rotate lower case chars",
+                type: "boolean",
+                value: true
+            },
+            {
+                name: "Rotate upper case chars",
+                type: "boolean",
+                value: true
+            },
+            {
+                name: "Rotate numbers",
+                type: "boolean",
+                value: false
+            },
+            {
+                name: "Sample length",
+                type: "number",
+                value: 100
+            },
+            {
+                name: "Sample offset",
+                type: "number",
+                value: 0
+            },
+            {
+                name: "Print amount",
+                type: "boolean",
+                value: true
+            },
+            {
+                name: "Crib (known plaintext string)",
+                type: "string",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [rotateLower, rotateUpper, rotateNum, sampleLength, sampleOffset, printAmount, crib] = args;
+        const sample = input.slice(sampleOffset, sampleOffset + sampleLength);
+        const cribLower = crib.toLowerCase();
+        const lowerStart = "a".charCodeAt(0), upperStart = "A".charCodeAt(0), numStart = "0".charCodeAt(0);
+        const result = [];
+        for (let amount = 1; amount < 26; amount++) {
+            const rotated = sample.slice();
+            for (let i = 0; i < rotated.length; i++) {
+                if (rotateLower && lowerStart <= rotated[i] && rotated[i] < lowerStart + 26) {
+                    rotated[i] = (rotated[i] - lowerStart + amount) % 26 + lowerStart;
+                } else if (rotateUpper && upperStart <= rotated[i] && rotated[i] < upperStart + 26) {
+                    rotated[i] = (rotated[i] - upperStart + amount) % 26 + upperStart;
+                } else if (rotateNum && numStart <= rotated[i] && rotated[i] < numStart + 10) {
+                    rotated[i] = (rotated[i] - numStart + amount) % 10 + numStart;
+                }
+            }
+            const rotatedString = Utils.byteArrayToUtf8(rotated);
+            if (rotatedString.toLowerCase().indexOf(cribLower) >= 0) {
+                const rotatedStringPrintable = Utils.printable(rotatedString, false);
+                if (printAmount) {
+                    const amountStr = "Amount = " + (" " + amount).slice(-2) + ": ";
+                    result.push(amountStr + rotatedStringPrintable);
+                } else {
+                    result.push(rotatedStringPrintable);
+                }
+            }
+        }
+        return result.join("\n");
+    }
+}
+
+export default ROT13BruteForce;

src/core/operations/ROT47BruteForce.mjs

@@ -0,0 +1,82 @@
+/**
+ * @author MikeCAT
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Utils from "../Utils.mjs";
+
+/**
+ * ROT47 Brute Force operation.
+ */
+class ROT47BruteForce extends Operation {
+
+    /**
+     * ROT47BruteForce constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "ROT47 Brute Force";
+        this.module = "Default";
+        this.description = "Try all meaningful amounts for ROT47.<br><br>Optionally you can enter your known plaintext (crib) to filter the result.";
+        this.infoURL = "https://wikipedia.org/wiki/ROT13#Variants";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Sample length",
+                type: "number",
+                value: 100
+            },
+            {
+                name: "Sample offset",
+                type: "number",
+                value: 0
+            },
+            {
+                name: "Print amount",
+                type: "boolean",
+                value: true
+            },
+            {
+                name: "Crib (known plaintext string)",
+                type: "string",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [sampleLength, sampleOffset, printAmount, crib] = args;
+        const sample = input.slice(sampleOffset, sampleOffset + sampleLength);
+        const cribLower = crib.toLowerCase();
+        const result = [];
+        for (let amount = 1; amount < 94; amount++) {
+            const rotated = sample.slice();
+            for (let i = 0; i < rotated.length; i++) {
+                if (33 <= rotated[i] && rotated[i] <= 126) {
+                    rotated[i] = (rotated[i] - 33 + amount) % 94 + 33;
+                }
+            }
+            const rotatedString = Utils.byteArrayToUtf8(rotated);
+            if (rotatedString.toLowerCase().indexOf(cribLower) >= 0) {
+                const rotatedStringPrintable = Utils.printable(rotatedString, false);
+                if (printAmount) {
+                    const amountStr = "Amount = " + (" " + amount).slice(-2) + ": ";
+                    result.push(amountStr + rotatedStringPrintable);
+                } else {
+                    result.push(rotatedStringPrintable);
+                }
+            }
+        }
+        return result.join("\n");
+    }
+}
+
+export default ROT47BruteForce;

src/core/operations/ROT8000.mjs

@@ -0,0 +1,123 @@
+/**
+ * @author Daniel Temkin [http://danieltemkin.com]
+ * @author Thomas Leplus [https://www.leplus.org]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+
+/**
+ * ROT8000 operation.
+ */
+class ROT8000 extends Operation {
+
+    /**
+     * ROT8000 constructor
+     */
+    constructor() {
+        super();
+        this.name = "ROT8000";
+        this.module = "Default";
+        this.description = "The simple Caesar-cypher encryption that replaces each Unicode character with the one 0x8000 places forward or back along the alphabet.";
+        this.infoURL = "https://rot8000.com/info";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        // Inspired from https://github.com/rottytooth/rot8000/blob/main/rot8000.js
+        // these come from the valid-code-point-transitions.json file generated from the c# proj
+        // this is done bc: 1) don't trust JS's understanging of surrogate pairs and 2) consistency with original rot8000
+        const validCodePoints = {
+            "33": true,
+            "127": false,
+            "161": true,
+            "5760": false,
+            "5761": true,
+            "8192": false,
+            "8203": true,
+            "8232": false,
+            "8234": true,
+            "8239": false,
+            "8240": true,
+            "8287": false,
+            "8288": true,
+            "12288": false,
+            "12289": true,
+            "55296": false,
+            "57344": true
+        };
+        const bmpSize = 0x10000;
+        const rotList = {}; // the mapping of char to rotated char
+        const hiddenBlocks = [];
+        let startBlock = 0;
+        for (const key in validCodePoints) {
+            if (Object.prototype.hasOwnProperty.call(validCodePoints, key)) {
+                if (validCodePoints[key] === true)
+                    hiddenBlocks.push({ start: startBlock, end: parseInt(key, 10) - 1 });
+                else
+                    startBlock = parseInt(key, 10);
+            }
+        }
+        const validIntList = []; // list of all valid chars
+        let currValid = false;
+        for (let i = 0; i < bmpSize; i++) {
+            if (validCodePoints[i] !== undefined) {
+                currValid = validCodePoints[i];
+            }
+            if (currValid) validIntList.push(i);
+        }
+        const rotateNum = Object.keys(validIntList).length / 2;
+        // go through every valid char and find its match
+        for (let i = 0; i < validIntList.length; i++) {
+            rotList[String.fromCharCode(validIntList[i])] =
+                String.fromCharCode(validIntList[(i + rotateNum) % (rotateNum * 2)]);
+        }
+        let output = "";
+        for (let count = 0; count < input.length; count++) {
+            // if it is not in the mappings list, just add it directly (no rotation)
+            if (rotList[input[count]] === undefined) {
+                output += input[count];
+                continue;
+            }
+            // otherwise, rotate it and add it to the string
+            output += rotList[input[count]];
+        }
+        return output;
+    }
+
+    /**
+     * Highlight ROT8000
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight ROT8000 in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+}
+
+export default ROT8000;

tests/browser/ops.js

@@ -249,6 +249,7 @@ module.exports = {
         // testOp(browser, "RIPEMD", "test input", "test_output");
         // testOp(browser, "ROT13", "test input", "test_output");
         // testOp(browser, "ROT47", "test input", "test_output");
+        // testOp(browser, "ROT8000", "test input", "test_output");
         // testOp(browser, "Rail Fence Cipher Decode", "test input", "test_output");
         // testOp(browser, "Rail Fence Cipher Encode", "test input", "test_output");
         // testOp(browser, "Randomize Colour Palette", "test input", "test_output");

tests/operations/index.mjs

@@ -117,6 +117,8 @@ import "./tests/SIGABA.mjs";
 import "./tests/ELFInfo.mjs";
 import "./tests/Subsection.mjs";
 import "./tests/CaesarBoxCipher.mjs";
+import "./tests/LS47.mjs";
+import "./tests/LZString.mjs";
 
 
 // Cannot test operations that use the File type yet

tests/operations/tests/LS47.mjs

@@ -0,0 +1,45 @@
+/**
+ * LS47 tests.
+ *
+ * @author n1073645 [n1073645@gmail.com]
+ *
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "LS47 Encrypt",
+        input: "thequickbrownfoxjumped",
+        expectedOutput: "(,t74ci78cp/8trx*yesu:alp1wqy",
+        recipeConfig: [
+            {
+                op: "LS47 Encrypt",
+                args: ["helloworld", 0, "test"],
+            },
+        ],
+    },
+    {
+        name: "LS47 Decrypt",
+        input: "(,t74ci78cp/8trx*yesu:alp1wqy",
+        expectedOutput: "thequickbrownfoxjumped---test",
+        recipeConfig: [
+            {
+                op: "LS47 Decrypt",
+                args: ["helloworld", 0],
+            },
+        ],
+    },
+    {
+        name: "LS47 Encrypt",
+        input: "thequickbrownfoxjumped",
+        expectedOutput: "Letter H is not included in LS47",
+        recipeConfig: [
+            {
+                op: "LS47 Encrypt",
+                args: ["Helloworld", 0, "test"],
+            },
+        ],
+    }
+]);

tests/operations/tests/LZString.mjs

@@ -0,0 +1,33 @@
+/**
+ * LZString tests.
+ *
+ * @author crespyl [peter@crespyl.net]
+ * @copyright Peter Jacobs 2021
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "LZString Compress To Base64",
+        input: "hello world",
+        expectedOutput: "BYUwNmD2AEDukCcwBMg=",
+        recipeConfig: [
+            {
+                "op": "LZString Compress",
+                "args": ["Base64"]
+            }
+        ],
+    },
+    {
+        name: "LZString Decompress From Base64",
+        input: "BYUwNmD2AEDukCcwBMg=",
+        expectedOutput: "hello world",
+        recipeConfig: [
+            {
+                "op": "LZString Decompress",
+                "args": ["Base64"]
+            }
+        ],
+    }
+]);

tests/operations/tests/Rotate.mjs

@@ -212,4 +212,37 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "ROT8000: nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "ROT8000",
+                args: []
+            },
+        ],
+    },
+    {
+        name: "ROT8000: normal",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        expectedOutput: "籝籱籮 籚籾籲籬籴 籋类籸粀籷 籏籸粁 籓籾籶籹籮籭 籘籿籮类 籝籱籮 籕籪粃粂 籍籸籰簷",
+        recipeConfig: [
+            {
+                op: "ROT8000",
+                args: []
+            },
+        ],
+    },
+    {
+        name: "ROT8000: backward",
+        input: "籝籱籮 籚籾籲籬籴 籋类籸粀籷 籏籸粁 籓籾籶籹籮籭 籘籿籮类 籝籱籮 籕籪粃粂 籍籸籰簷",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        recipeConfig: [
+            {
+                op: "ROT8000",
+                args: []
+            },
+        ],
+    },
 ]);