🔑 P12 Password Changer API

Overview

The P12 Password Changer API allows you to change passwords for .p12 certificate files programmatically.

Base URL

https://tools.sidelix.vip/p12-password-changer/api/

Features

• Change P12 certificate passwords
• Set password for passwordless certificates
• Remove passwords from certificates
• Returns download URL for modified certificate as a ZIP file with README
• One-time download for security - files are automatically deleted after first download

Endpoint

Request Parameters

Parameter	Type	Required	Description
p12_file	File	Required	The .p12 certificate file
old_password	String	Optional	Current password (empty if none)
new_password	String	Required	New password to set

Success Response (200)

{
  "success": true,
  "error": null,
  "data": {
    "message": "Password changed successfully",
    "download_url": "https://tools.sidelix.vip/p12-password-changer/download.php?file=...",
    "password": "mynewpassword",
    "filename": "modified_certificate.p12",
    "warning": "Download URL is valid for one-time use only. File will be deleted after first download."
  }
}

Response Fields

Field	Description
download_url	Direct download link to a ZIP file containing the modified certificate and a README with password info. One-time use only - file is deleted after first download.
password	The new password that was set on the certificate
filename	Suggested filename for saving the certificate
warning	Important notice about download URL being single-use only

Error Response (400)

{
  "success": false,
  "error": "Incorrect old password",
  "data": null
}

Examples

cURL

curl -X POST https://tools.sidelix.vip/p12-password-changer/api/ \
  -F "[email protected]" \
  -F "old_password=oldpass123" \
  -F "new_password=newpass456"

Python

import requests

url = "https://tools.sidelix.vip/p12-password-changer/api/"

with open("certificate.p12", "rb") as f:
    files = {"p12_file": f}
    data = {
        "old_password": "oldpass123",
        "new_password": "newpass456"
    }
    
    response = requests.post(url, files=files, data=data)
    result = response.json()

    if result["success"]:
        download_url = result["data"]["download_url"]
        print(f"Success! New password: {result['data']['password']}")
        print(f"Download URL: {download_url}")
        print(f"Warning: {result['data']['warning']}")

        # Download the ZIP file
        zip_response = requests.get(download_url)
        with open("modified_certificate.zip", "wb") as out:
            out.write(zip_response.content)
        print("Downloaded modified_certificate.zip")
    else:
        print(f"Error: {result['error']}")

JavaScript

const formData = new FormData();
formData.append('p12_file', fileInput.files[0]);
formData.append('old_password', 'oldpass123');
formData.append('new_password', 'newpass456');

fetch('https://tools.sidelix.vip/p12-password-changer/api/', {
    method: 'POST',
    body: formData
})
.then(response => response.json())
.then(data => {
    if (data.success) {
        console.log('Success! New password:', data.data.password);
        console.log('Warning:', data.data.warning);

        // Redirect to download URL or open in new tab
        window.open(data.data.download_url, '_blank');

        // Or trigger automatic download
        // window.location.href = data.data.download_url;
    } else {
        console.error('Error:', data.error);
    }
});

Error Messages

• No file uploaded or upload error occurred
• New password is required
• Only .p12 files are allowed
• Incorrect old password
• Failed to change password

Support

• Web Interface: P12 Password Changer
• Telegram: Join our channel
• Website: nezushub.vip