add password strength checker tutorial

Author: x4nth055

Diff for: README.md

@@ -68,6 +68,7 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
     - [How to Exploit Command Injection Vulnerabilities in Python](https://thepythoncode.com/article/how-to-exploit-command-injection-vulnerabilities-in-python). ([code](ethical-hacking/exploit-command-injection))
     - [How to Make Malware Persistent in Python](https://thepythoncode.com/article/how-to-create-malware-persistent-in-python). ([code](ethical-hacking/persistent-malware))
     - [How to Remove Persistent Malware in Python](https://thepythoncode.com/article/removingg-persistent-malware-in-python). ([code](ethical-hacking/remove-persistent-malware))
+    - [How to Check Password Strength with Python](https://thepythoncode.com/article/test-password-strength-with-python). ([code](ethical-hacking/checking-password-strength))
 
 - ### [Machine Learning](https://www.thepythoncode.com/topic/machine-learning)
     - ### [Natural Language Processing](https://www.thepythoncode.com/topic/nlp)

Diff for: ethical-hacking/checking-password-strength/README.md

@@ -0,0 +1 @@
+# [How to Check Password Strength with Python](https://thepythoncode.com/article/test-password-strength-with-python)

Diff for: ethical-hacking/checking-password-strength/check_password_strength.py

@@ -0,0 +1,37 @@
+from zxcvbn import zxcvbn
+import pprint, getpass, sys
+
+
+def test_single_password():
+    password = getpass.getpass("[?] Enter your password: ")
+    result = zxcvbn(password)
+    print(f"Value: {result['password']}")
+    print(f"Password Score: {result['score']}/4")
+    print(f"Crack Time: {result['crack_times_display']['offline_slow_hashing_1e4_per_second']}")
+    print(f"Feedback: {result['feedback']['suggestions']}")
+    #pprint.pp(result)
+
+
+def test_multiple_passwords(password_file):
+    try:
+        with open(password_file, 'r') as passwords:
+            for password in passwords:
+                result = zxcvbn(password.strip('\n'))
+                print('\n[+] ######################')# for readability
+                print(f"Value: {result['password']}")
+                print(f"Password Score: {result['score']}/4")
+                print(f"Crack Time: {result['crack_times_display']['offline_slow_hashing_1e4_per_second']}")
+                print(f"Feedback: {result['feedback']['suggestions']}")
+                #pprint.pp(result)
+            
+    except Exception:
+        print('[!] Please make sure to specify an accessible file containing passwords.')
+
+
+if len(sys.argv) == 2:
+    test_multiple_passwords(sys.argv[1])
+elif len(sys.argv) == 1:
+    test_single_password()
+else:
+    print('Usage: python test_password_strength.py <file> (for a file containing passwords) or \
+        \npython test_password_strength.py (for a single password.)')

Diff for: ethical-hacking/checking-password-strength/passwords.txt

@@ -0,0 +1,4 @@
+password
+1234567
+abc123cba159
+Sioplabxtre_9lTGCE

Diff for: ethical-hacking/checking-password-strength/requirements.txt

@@ -0,0 +1 @@
+zxcvbn