First release.

Author: Clats97

PFXCheck.py

@@ -0,0 +1,133 @@
+import sys
+import subprocess
+import importlib.util
+import os
+
+def ensure_package(package):
+    if importlib.util.find_spec(package) is None:
+        print(f"Installing required package: {package} ...")
+        subprocess.check_call([sys.executable, "-m", "pip", "install", package])
+        print("Restarting script ...")
+        os.execv(sys.executable, [sys.executable] + sys.argv)
+
+ensure_package("cryptography")
+
+import datetime
+from cryptography import x509
+from cryptography.hazmat.primitives.serialization import pkcs12
+from cryptography.hazmat.primitives import serialization
+
+RED = "\033[31m"
+BLUE = "\033[34m"
+BLACK = "\033[30m"
+RESET = "\033[0m"
+
+ASCII_ART = (
+    "██████╗ ███████╗██╗  ██╗ ██████╗██╗  ██╗███████╗ ██████╗██╗  ██╗\n"
+    "██╔══██╗██╔════╝╚██╗██╔╝██╔════╝██║  ██║██╔════╝██╔════╝██║ ██╔╝\n"
+    "██████╔╝█████╗   ╚███╔╝ ██║     ███████║█████╗  ██║     █████╔╝ \n"
+    "██╔═══╝ ██╔══╝   ██╔██╗ ██║     ██╔══██║██╔══╝  ██║     ██╔═██╗ \n"
+    "██║     ██║     ██╔╝ ██╗╚██████╗██║  ██║███████╗╚██████╗██║  ██╗\n"
+    "╚═╝     ╚═╝     ╚═╝  ╚═╝ ╚═════╝╚═╝  ╚═╝╚══════╝ ╚═════╝╚═╝  ╚═╝\n"
+    "                                                                "
+)
+
+TOOL_NAME = "P F X   C E R T I F I C A T E   A N A L Y Z E R"
+VERSION = "Version 1.00"
+AUTHOR = "By Joshua M Clatney - Ethical Pentesting Enthusiast"
+
+def clear():
+    os.system("cls" if os.name == "nt" else "clear")
+
+def banner():
+    clear()
+    print(f"{RED}{ASCII_ART}{RESET}")
+    print(f"{BLUE}{TOOL_NAME}{RESET}   {RED}{VERSION}{RESET}")
+    print(f"{BLACK}{AUTHOR}{RESET}")
+
+def load_pfx(path, password):
+    with open(path, "rb") as f:
+        data = f.read()
+    key, cert, _ = pkcs12.load_key_and_certificates(data, password.encode())
+    return key, cert
+
+def print_cert_info(label, value):
+    print(f"{label}: {value}")
+
+def analyze_certificate(cert):
+    print_cert_info("Subject", cert.subject)
+    print_cert_info("Issuer", cert.issuer)
+    print_cert_info("Serial Number", cert.serial_number)
+    print_cert_info("Valid From", cert.not_valid_before)
+    print_cert_info("Valid To", cert.not_valid_after)
+    print_cert_info("Version", cert.version)
+    print_cert_info("Public Key Algorithm", cert.signature_algorithm_oid._name)
+    print("\nExtensions:")
+    for ext in cert.extensions:
+        print(f"- {ext.oid._name}: {ext.value}")
+
+def extend_certificate_expiry(cert, key, days=365):
+    new_expiry = cert.not_valid_after + datetime.timedelta(days=days)
+    builder = (
+        x509.CertificateBuilder()
+        .subject_name(cert.subject)
+        .issuer_name(cert.issuer)
+        .public_key(cert.public_key())
+        .serial_number(cert.serial_number)
+        .not_valid_before(cert.not_valid_before)
+        .not_valid_after(new_expiry)
+    )
+    for ext in cert.extensions:
+        builder = builder.add_extension(ext.value, ext.critical)
+    return builder.sign(key, cert.signature_hash_algorithm)
+
+def sanitize_path(path):
+    return path.strip().strip('"').strip("'")
+
+def home():
+    while True:
+        banner()
+        print("\nPress Enter to start or Ctrl+C to exit.")
+        try:
+            inp = input()
+        except KeyboardInterrupt:
+            print("\nExiting.")
+            sys.exit(0)
+        if inp.strip() == "":
+            main_menu()
+            banner()
+            print("\nPress Enter to exit.")
+            input()
+            sys.exit(0)
+
+def main_menu():
+    banner()
+    raw_path = input("PFX file path: ")
+    pfx_path = sanitize_path(raw_path)
+    password = input("PFX password: ").strip()
+    try:
+        key, cert = load_pfx(pfx_path, password)
+    except Exception as e:
+        print(f"\nError loading PFX: {e}")
+        print("Press Enter to return to home screen.")
+        input()
+        return
+    print("\nChoose an option:")
+    print("1. Analyze certificate")
+    print("2. Extend certificate expiry by 1 year")
+    print("3. Analyze and extend")
+    choice = input("Selection (1/2/3): ").strip()
+    if choice in {"1", "3"}:
+        print()
+        analyze_certificate(cert)
+    if choice in {"2", "3"}:
+        out_path = input("\nOutput path for extended certificate (PEM): ").strip()
+        new_cert = extend_certificate_expiry(cert, key)
+        with open(out_path, "wb") as f:
+            f.write(new_cert.public_bytes(encoding=serialization.Encoding.PEM))
+        print(f"Extended certificate saved to {out_path}")
+    print("\nPress Enter to return to the home screen.")
+    input()
+
+if __name__ == "__main__":
+    home()