Merge branch 'master' of https://github.com/gchq/CyberChef

Author: a3957273

src/core/config/Categories.json

@@ -179,7 +179,8 @@
             "RSA Verify",
             "RSA Encrypt",
             "RSA Decrypt",
-            "Parse SSH Host Key"
+            "Parse SSH Host Key",
+            "Parse CSR"
         ]
     },
     {
@@ -321,6 +322,7 @@
             "To UNIX Timestamp",
             "Windows Filetime to UNIX Timestamp",
             "UNIX Timestamp to Windows Filetime",
+            "DateTime Delta",
             "Extract dates",
             "Get Time",
             "Sleep"
@@ -337,6 +339,7 @@
             "Extract domains",
             "Extract file paths",
             "Extract dates",
+            "Extract hashes",
             "Regular expression",
             "XPath expression",
             "JPath expression",

src/core/operations/DateTimeDelta.mjs

@@ -0,0 +1,108 @@
+/**
+ * @author tomgond [[email protected]]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import moment from "moment-timezone";
+import {DATETIME_FORMATS, FORMAT_EXAMPLES} from "../lib/DateTime.mjs";
+
+/**
+ * DateTime Delta operation
+ */
+class DateTimeDelta extends Operation {
+
+    /**
+     * DateTimeDelta constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "DateTime Delta";
+        this.module = "Default";
+        this.description = "Calculates a new DateTime value given an input DateTime value and a time difference (delta) from the input DateTime value.";
+        this.infoURL = "";
+        this.inputType = "string";
+        this.outputType = "html";
+        this.args = [
+            {
+                "name": "Built in formats",
+                "type": "populateOption",
+                "value": DATETIME_FORMATS,
+                "target": 1
+            },
+            {
+                "name": "Input format string",
+                "type": "binaryString",
+                "value": "DD/MM/YYYY HH:mm:ss"
+            },
+            {
+                "name": "Time Operation",
+                "type": "option",
+                "value": ["Add", "Subtract"]
+            },
+            {
+                "name": "Days",
+                "type": "number",
+                "value": 0
+            },
+            {
+                "name": "Hours",
+                "type": "number",
+                "value": 0
+            },
+            {
+                "name": "Minutes",
+                "type": "number",
+                "value": 0
+            },
+            {
+                "name": "Seconds",
+                "type": "number",
+                "value": 0
+            }
+
+        ];
+    }
+
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const inputTimezone = "UTC";
+        const inputFormat = args[1];
+        const operationType = args[2];
+        const daysDelta = args[3];
+        const hoursDelta = args[4];
+        const minutesDelta = args[5];
+        const secondsDelta = args[6];
+        let date = "";
+
+        try {
+            date = moment.tz(input, inputFormat, inputTimezone);
+            if (!date || date.format() === "Invalid date") throw Error;
+        } catch (err) {
+            return `Invalid format.\n\n${FORMAT_EXAMPLES}`;
+        }
+        let newDate;
+        if (operationType === "Add") {
+            newDate = date.add(daysDelta, "days")
+                .add(hoursDelta, "hours")
+                .add(minutesDelta, "minutes")
+                .add(secondsDelta, "seconds");
+
+        } else {
+            newDate = date.add(-daysDelta, "days")
+                .add(-hoursDelta, "hours")
+                .add(-minutesDelta, "minutes")
+                .add(-secondsDelta, "seconds");
+        }
+        return newDate.tz(inputTimezone).format(inputFormat.replace(/[<>]/g, ""));
+    }
+}
+
+export default DateTimeDelta;

src/core/operations/ExtractHashes.mjs

@@ -0,0 +1,84 @@
+/**
+ * @author mshwed [[email protected]]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import { search } from "../lib/Extract.mjs";
+
+/**
+ * Extract Hash Values operation
+ */
+class ExtractHashes extends Operation {
+
+    /**
+     * ExtractHashValues constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Extract hashes";
+        this.module = "Regex";
+        this.description = "Extracts potential hashes based on hash character length";
+        this.infoURL = "https://en.wikipedia.org/wiki/Comparison_of_cryptographic_hash_functions";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Hash character length",
+                type: "number",
+                value: 40
+            },
+            {
+                name: "All hashes",
+                type: "boolean",
+                value: false
+            },
+            {
+                name: "Display Total",
+                type: "boolean",
+                value: false
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const results = [];
+        let hashCount = 0;
+
+        const [hashLength, searchAllHashes, showDisplayTotal] = args;
+
+        // Convert character length to bit length
+        let hashBitLengths = [(hashLength / 2) * 8];
+
+        if (searchAllHashes) hashBitLengths = [4, 8, 16, 32, 64, 128, 160, 192, 224, 256, 320, 384, 512, 1024];
+
+        for (const hashBitLength of hashBitLengths) {
+            // Convert bit length to character length
+            const hashCharacterLength = (hashBitLength / 8) * 2;
+
+            const regex = new RegExp(`(\\b|^)[a-f0-9]{${hashCharacterLength}}(\\b|$)`, "g");
+            const searchResults = search(input, regex, null, false);
+
+            hashCount += searchResults.length;
+            results.push(...searchResults);
+        }
+
+        let output = "";
+        if (showDisplayTotal) {
+            output = `Total Results: ${hashCount}\n\n`;
+        }
+
+        output = output + results.join("\n");
+        return output;
+    }
+
+}
+
+export default ExtractHashes;