Create Password-Strength-Checker.py

Author: rogers-cyber

28-Random-Password-Strength-Checker/Password-Strength-Checker.py

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+import sys
+import os
+import random
+import string
+import math
+import time
+import hashlib
+import threading
+import requests
+import tkinter as tk
+from tkinter import ttk, messagebox
+import sv_ttk
+from tkinter import filedialog
+
+# =========================
+# Helpers
+# =========================
+def resource_path(file_name):
+    base_path = getattr(sys, "_MEIPASS", os.path.dirname(os.path.abspath(__file__)))
+    return os.path.join(base_path, file_name)
+
+def set_status(msg):
+    status_var.set(msg)
+    root.update_idletasks()
+
+# =========================
+# App Setup
+# =========================
+root = tk.Tk()
+root.title("Password Security Suite")
+root.geometry("720x680")
+sv_ttk.set_theme("light")
+
+# =========================
+# Globals
+# =========================
+dark_mode_var = tk.BooleanVar(value=False)
+show_password_var = tk.BooleanVar(value=False)
+
+password_var = tk.StringVar()
+entropy_var = tk.StringVar(value="Entropy: — bits")
+crack_time_var = tk.StringVar(value="Time to crack: —")
+
+length_var = tk.IntVar(value=14)
+use_upper = tk.BooleanVar(value=True)
+use_lower = tk.BooleanVar(value=True)
+use_digits = tk.BooleanVar(value=True)
+use_symbols = tk.BooleanVar(value=True)
+
+password_history = []
+
+CLIPBOARD_CLEAR_SECONDS = 15
+GUESSES_PER_SECOND = 1e10  # realistic offline attack
+
+# =========================
+# Theme Toggle
+# =========================
+def toggle_theme():
+    bg = "#2E2E2E" if dark_mode_var.get() else "#FFFFFF"
+    fg = "white" if dark_mode_var.get() else "black"
+    root.configure(bg=bg)
+    for w in ["TFrame", "TLabel", "TLabelframe", "TLabelframe.Label", "TCheckbutton"]:
+        style.configure(w, background=bg, foreground=fg)
+    password_entry.configure(background=bg, foreground=fg)
+
+# =========================
+# Core Security Logic
+# =========================
+def calculate_entropy(pwd):
+    pool = 0
+    if any(c.islower() for c in pwd): pool += 26
+    if any(c.isupper() for c in pwd): pool += 26
+    if any(c.isdigit() for c in pwd): pool += 10
+    if any(c in string.punctuation for c in pwd): pool += len(string.punctuation)
+    return round(len(pwd) * math.log2(pool), 2) if pool else 0
+
+def estimate_crack_time(entropy):
+    guesses = 2 ** entropy
+    seconds = guesses / GUESSES_PER_SECOND
+    units = [("years", 31536000), ("days", 86400), ("hours", 3600), ("minutes", 60)]
+    for name, div in units:
+        if seconds >= div:
+            return f"{seconds/div:.2f} {name}"
+    return f"{seconds:.2f} seconds"
+
+def update_strength_visuals(entropy):
+    progress["value"] = min(entropy, 100)
+
+    if entropy < 40:
+        color, label = "red", "Weak ❌"
+    elif entropy < 60:
+        color, label = "orange", "Medium ⚠️"
+    elif entropy < 80:
+        color, label = "green", "Strong ✅"
+    else:
+        color, label = "purple", "Very Strong 🔥"
+
+    style.configure("Entropy.Horizontal.TProgressbar", background=color)
+    strength_label.config(text=label)
+
+def evaluate_password(pwd):
+    entropy = calculate_entropy(pwd)
+    entropy_var.set(f"Entropy: {entropy} bits")
+    crack_time_var.set(f"Time to crack: {estimate_crack_time(entropy)}")
+    update_strength_visuals(entropy)
+
+def generate_password():
+    chars = ""
+    if use_upper.get(): chars += string.ascii_uppercase
+    if use_lower.get(): chars += string.ascii_lowercase
+    if use_digits.get(): chars += string.digits
+    if use_symbols.get(): chars += string.punctuation
+    if not chars:
+        messagebox.showwarning("Error", "Select at least one character type.")
+        return
+
+    pwd = "".join(random.choice(chars) for _ in range(length_var.get()))
+    password_var.set(pwd)
+    evaluate_password(pwd)
+    add_to_history(pwd)
+    check_breach(pwd)
+    set_status("Password generated")
+
+# =========================
+# Password History
+# =========================
+def add_to_history(pwd):
+    password_history.append(pwd)
+    history_list.insert(tk.END, f"{len(password_history)} • {pwd}")
+
+# =========================
+# Clipboard Handling
+# =========================
+def copy_password():
+    pwd = password_var.get()
+    if not pwd: return
+    root.clipboard_clear()
+    root.clipboard_append(pwd)
+    set_status("Copied to clipboard (auto-clear enabled)")
+    threading.Thread(target=clear_clipboard_timer, daemon=True).start()
+
+def clear_clipboard_timer():
+    time.sleep(CLIPBOARD_CLEAR_SECONDS)
+    root.clipboard_clear()
+    set_status("Clipboard cleared")
+
+# =========================
+# Export Password TXT
+# =========================
+def export_history_txt():
+    if not password_history:
+        messagebox.showinfo("Empty Vault", "No passwords to export.")
+        return
+
+    file_path = filedialog.asksaveasfilename(
+        defaultextension=".txt",
+        filetypes=[("Text Files", "*.txt")],
+        title="Export Password History"
+    )
+
+    if not file_path:
+        return  # user cancelled
+
+    try:
+        with open(file_path, "w", encoding="utf-8") as f:
+            f.write("Password History Vault\n")
+            f.write("=" * 30 + "\n\n")
+            for i, pwd in enumerate(password_history, 1):
+                f.write(f"{i}. {pwd}\n")
+
+        set_status("Password history exported")
+        messagebox.showinfo("Export Successful", "Password history saved securely.")
+    except Exception as e:
+        messagebox.showerror("Export Failed", str(e))
+
+# =========================
+# Password Visibility
+# =========================
+def toggle_password_visibility():
+    password_entry.config(show="" if show_password_var.get() else "•")
+
+# =========================
+# HIBP Breach Check (k-Anonymity)
+# =========================
+def check_breach(pwd):
+    sha1 = hashlib.sha1(pwd.encode()).hexdigest().upper()
+    prefix, suffix = sha1[:5], sha1[5:]
+
+    try:
+        res = requests.get(
+            f"https://api.pwnedpasswords.com/range/{prefix}",
+            timeout=5
+        )
+        for line in res.text.splitlines():
+            if suffix in line:
+                messagebox.showwarning(
+                    "⚠ Breach Found",
+                    "This password has appeared in known data breaches!"
+                )
+                set_status("Breach detected")
+                return
+        set_status("Password not found in breaches")
+    except Exception:
+        set_status("Breach check failed (offline)")
+
+# =========================
+# Styles
+# =========================
+style = ttk.Style()
+style.theme_use("clam")
+style.configure("Action.TButton", font=("Segoe UI", 11, "bold"), padding=8)
+style.configure("Entropy.Horizontal.TProgressbar", thickness=12)
+
+# =========================
+# Status Bar
+# =========================
+status_var = tk.StringVar(value="Ready")
+ttk.Label(root, textvariable=status_var, anchor="w").pack(side=tk.BOTTOM, fill="x")
+
+# =========================
+# UI Layout
+# =========================
+main = ttk.Frame(root, padding=20)
+main.pack(expand=True, fill="both")
+
+ttk.Label(main, text="Password Security Suite",
+          font=("Segoe UI", 22, "bold")).pack()
+
+password_entry = ttk.Entry(
+    main, textvariable=password_var,
+    font=("Segoe UI", 14), justify="center", show="•"
+)
+password_entry.pack(fill="x", pady=8)
+
+ttk.Checkbutton(main, text="Show Password",
+                variable=show_password_var,
+                command=toggle_password_visibility).pack()
+
+ttk.Label(main, textvariable=entropy_var,
+          font=("Segoe UI", 11, "bold")).pack()
+
+ttk.Label(main, textvariable=crack_time_var,
+          font=("Segoe UI", 10)).pack()
+
+strength_label = ttk.Label(main, text="—",
+                           font=("Segoe UI", 12, "bold"))
+strength_label.pack(pady=4)
+
+progress = ttk.Progressbar(
+    main, style="Entropy.Horizontal.TProgressbar",
+    maximum=100, length=420
+)
+progress.pack(pady=8)
+
+# =========================
+# Controls
+# =========================
+controls = ttk.Frame(main)
+controls.pack(pady=8)
+
+ttk.Button(controls, text="🔐 Generate",
+           command=generate_password,
+           style="Action.TButton").pack(side="left", padx=4)
+
+ttk.Button(controls, text="📋 Copy",
+           command=copy_password,
+           style="Action.TButton").pack(side="left", padx=4)
+
+ttk.Button(controls, text="📤 Export to TXT",
+           command=export_history_txt,
+           style="Action.TButton").pack(side="left", padx=4)
+
+# =========================
+# History Vault
+# =========================
+vault = ttk.LabelFrame(main, text="Password History Vault", padding=10)
+vault.pack(fill="both", expand=True, pady=10)
+
+history_list = tk.Listbox(vault, font=("Segoe UI", 10), height=6)
+history_list.pack(fill="both", expand=True)
+
+# =========================
+# Options
+# =========================
+options = ttk.LabelFrame(main, text="Password Options", padding=10)
+options.pack(fill="x", pady=8)
+
+ttk.Label(options, text="Length:").grid(row=0, column=0)
+ttk.Spinbox(options, from_=6, to=64,
+            textvariable=length_var, width=6).grid(row=0, column=1)
+
+ttk.Checkbutton(options, text="Uppercase", variable=use_upper).grid(row=1, column=0)
+ttk.Checkbutton(options, text="Lowercase", variable=use_lower).grid(row=1, column=1)
+ttk.Checkbutton(options, text="Numbers", variable=use_digits).grid(row=2, column=0)
+ttk.Checkbutton(options, text="Symbols", variable=use_symbols).grid(row=2, column=1)
+
+ttk.Checkbutton(main, text="Dark Mode",
+                variable=dark_mode_var,
+                command=toggle_theme).pack(pady=6)
+
+# =========================
+# Run App
+# =========================
+root.mainloop()