Hill Cipher Encode/Decode added.

src/core/operations/HillCipherEncode.mjs

@@ -0,0 +1,59 @@
+/**
+ * @author n1073645 [n1073645@gmail.com]
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import * as HillCipher from "../lib/HillCipher.mjs";
+
+/**
+ * Hill Cipher Encode operation
+ */
+class HillCipherEncode extends Operation {
+
+    /**
+     * HillCipherEncode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Hill Cipher Encode";
+        this.module = "Crypto";
+        this.description = "";
+        this.infoURL = "";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Key",
+                type: "string",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+
+        const key = args[0].toLowerCase();
+        input = input.toLowerCase();
+
+        // The algorithm has to have a non-empty input and a non-empty key.
+        if (input.length === 0 || key.length === 0)
+            return "";
+
+        // Remove spaces from input.
+        while (input.indexOf(" ") !== -1)
+            input = input.replace(" ", "");
+
+        return HillCipher.encode(input, key);
+    }
+
+}
+
+export default HillCipherEncode;