feat: add cert validation code

hashes/src/Hashes_salt.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 10,
    "metadata": {
     "id": "0Wg0gBwY-2Eo"
    },
@@ -14,14 +14,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 11,
    "metadata": {
     "id": "v7fM-yxH-2Er"
    },
    "outputs": [],
    "source": [
     "password = '12345Qwert'\n",
-    "salt = 'dotnet2023'"
+    "salt = 'whatAnAmazingCon'"
    ]
   },
   {
@@ -35,7 +35,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 12,
    "metadata": {
     "id": "KZW8caXA-2Es"
    },
@@ -57,7 +57,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 13,
    "metadata": {
     "colab": {
      "base_uri": "https://localhost:8080/"
@@ -71,7 +71,7 @@
      "output_type": "stream",
      "text": [
       "The md5 hash is: 18a49c364ba10330d894b11652e65bc2\n",
-      "The salted md5 hash is: 66e99cc5306f5fc13d5ae882119affc6\n"
+      "The salted md5 hash is: ec31aadc6a06fe53ca079564c48596a6\n"
      ]
     }
    ],
@@ -94,7 +94,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 14,
    "metadata": {
     "id": "ZeGVBMMv-2Et"
    },
@@ -110,7 +110,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 15,
    "metadata": {
     "colab": {
      "base_uri": "https://localhost:8080/"
@@ -124,7 +124,7 @@
      "output_type": "stream",
      "text": [
       "The sha256 hash is: c90142696762be2f4632c18382315ab39e20a41e997cd8a41502aeafcfae49fe\n",
-      "The salted sha256 hash is: 4c08e5ccb92fcb5ef84ebac9636a099121a1609a564d8cf91e87509cc123f64e\n"
+      "The salted sha256 hash is: b60c0049182cc396182f62cf598c39a4cfe73ce889f31c840014c09cdc1b3bb6\n"
      ]
     }
    ],
@@ -136,6 +136,67 @@
     "print(f'The salted sha256 hash is: {salted_hash}')"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Certificates Checker\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Requirement already satisfied: certvalidator in /opt/conda/lib/python3.11/site-packages (0.11.1)\n",
+      "Requirement already satisfied: asn1crypto>=0.18.1 in /opt/conda/lib/python3.11/site-packages (from certvalidator) (1.5.1)\n",
+      "Requirement already satisfied: oscrypto>=0.16.1 in /opt/conda/lib/python3.11/site-packages (from certvalidator) (1.3.0)\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "pip install certvalidator\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Unexpected The path could not be validated because the end-entity certificate expired 2015-04-12 23:59:59Z\n",
+      " type: <class 'certvalidator.errors.PathValidationError'>\n"
+     ]
+    }
+   ],
+   "source": [
+    "from oscrypto import tls\n",
+    "from certvalidator import CertificateValidator\n",
+    "\n",
+    "\n",
+    "expired_cert = 'expired.badssl.com'\n",
+    "self_signed = 'self-signed.badssl.com'\n",
+    "bad_dh = 'dh480.badssl.com'\n",
+    "\n",
+    "try:\n",
+    "    session = tls.TLSSession(manual_validation=True)\n",
+    "    connection = tls.TLSSocket(expired_cert, 443, session=session)\n",
+    "\n",
+    "    validator = CertificateValidator(connection.certificate, connection.intermediates)\n",
+    "    validator.validate_tls(connection.hostname)\n",
+    "except Exception as err:\n",
+    "    print(f\"Unexpected {err}\")\n",
+    "    print(f\" type: {type(err)}\")"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {
@@ -147,7 +208,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -156,7 +217,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 20,
    "metadata": {
     "colab": {
      "base_uri": "https://localhost:8080/"
@@ -169,7 +230,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "This password has been seen 1954 times before...\n"
+      "This password has been seen 1473205 times before...\n"
      ]
     }
    ],
@@ -202,6 +263,13 @@
     "1. [Salt OWASP](https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#salting)\n",
     "1. [Pepper OWASP](https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#peppering)\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -223,7 +291,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.4"
+   "version": "3.11.6"
   }
  },
  "nbformat": 4,