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Please read carefully before bidding. Project Goal: I need a custom Tampermonkey userscript built specifically for the sign-in page of the IVAC portal ([login to view URL]). The goal of the script is to capture the client-side encrypted payload token (the "c" parameter) and output it cleanly to the browser console on demand, WITHOUT actually submitting or reloading the form. The Technical Challenge: - The target login page utilizes Cloudflare Turnstile. - However, generating a standard Turnstile token is not enough. The frontend JavaScript on this portal intercepts the form data and applies custom client-side encryption/signing, outputting it as a parameter named "c" inside the final payload. - You will need to reverse-engineer the minified/obfuscated JavaScript files of the website to find out where this encryption happens. Requirements: - Strong experience writing advanced Tampermonkey/Violentmonkey scripts. - Deep expertise in JavaScript reverse engineering, deobfuscation, and browser DevTools debugging. - Experience with JS Hooking (Monkey Patching) or XHR/Fetch interception to hijack or trigger internal website functions. - The output must be clean, well-commented code that prints the dynamic "c" value directly to the console. Payment Terms (Single Milestone): - Budget is $30 USD. - A single milestone of $30 will be created and funded into escrow immediately upon hiring. - The money will be fully released to you ONLY AFTER you show proof (via a short video) that the script successfully extracts and logs the dynamic encrypted "c" value on demand.
Project ID: 40531069
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Hi there, I see you're looking for a Tampermonkey userscript to capture the encrypted payload token from the IVAC portal, and I specialize in crafting exactly these types of scripts. I am Mubashir, a Full-Stack Developer with 6+ years of experience in advanced JavaScript and browser scripting. I understand that your main goal is to intercept the encrypted "c" parameter without submitting the form, which requires deep reverse-engineering of the site's JavaScript. 1. First, I will analyze the login page's JavaScript files to identify the encryption process for the "c" parameter. 2. Then, I will write a Tampermonkey userscript that hooks into the form submission process to capture the encrypted payload without submitting it. 3. After that, I will ensure the output is clean and well-commented, printing the "c" value directly to the console on demand. 4. Finally, I will create a short video demonstrating the script in action, showing how it successfully extracts the token. Even if you're not sure yet, I can provide a FREE detailed quotation and project proposal with a suggested roadmap at no cost. If you decide to work with someone else, you can still use my proposal as a solid reference document. >>> My Work: https://www.freelancer.com/u/mubashir021 <<< Drop me a message and let's get this sorted. Mubashir
$40 USD in 10 days
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25 freelancers are bidding on average $35 USD for this job

SKIP.
$200 USD in 7 days
8.7
8.7

Hi, your "Encrypter Userscript for Online Portal" project is right in my wheelhouse. I develop modern JavaScript apps end to end — React/Vue/Next on the front and Node/Express on the back, in TypeScript where it helps. Working with php, javascript, web security, web scraping, c# programming, c++ programming, web development, frontend development, reverse engineering, cloudflare, I focus on responsive, fast UIs, clean component structure, and reliable APIs — no page-builder shortcuts. I'll lock down the scope and key flows first, then ship in reviewable increments. Can we hop on a quick chat to align on your requirements? ⭐ 5.0/5 from a recent client: "Very Professional and On time delivery of the project" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$27 USD in 1 day
7.6
7.6

Hello, I came across your Encrypter Userscript for Online Portal and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in PHP, Web Development, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum
$30 USD in 1 day
5.6
5.6

Hi there, I see you need a custom Tampermonkey userscript for the IVAC portal that captures the encrypted "c" parameter without submitting the form. I can help with that by reverse-engineering the site's JavaScript to pinpoint where the encryption occurs and then implementing a script that hooks into those functions. With 4+ years of experience in writing advanced userscripts and JavaScript reverse engineering, I'm equipped to tackle the complexities of the Cloudflare Turnstile and the custom encryption. My approach will include thorough debugging and testing to ensure the script outputs the "c" value cleanly to the console. I understand the importance of well-commented code, and I’ll make sure it meets your expectations. Could you clarify if there are any specific browser environments or configurations you anticipate using for this script? Best regards, Arslan Shahid
$10 USD in 1 day
5.8
5.8

As a freelance developer with a well-rounded skill set that extends beyond the usual, including expertise in C++ programming, Frontend Development, and particularly JavaScript - your exact requirement, my name is Mahad Sheikh and I am confident I can get this job done for you. My specialty doesn't simply lie in software development - I strive to deliver real business value which I do by understanding your goals beyond just the technical requirements. Your satisfaction is my utmost priority, and that's exactly what you can expect from me on this task. Rest assured, safety of your system is paramount to me. With an extensive background in web security and reverse engineering, I have honed my skills at cracking codes and unraveling sophisticated encrypted algorithms. I am comfortable working in intricate environments like Cloudflare Turnstile, having previously encountered similar setups during my career.
$20 USD in 1 day
5.3
5.3

Reverse-engineering that "c" parameter from the IVAC portal's obfuscated JS is the core challenge here. I'd start by intercepting XHR/fetch calls with a monkey-patched hook, then trace backward through the minified code to find where the encryption happens before form submission. I've built Tampermonkey scripts that hook into Cloudflare-protected sites before and can deobfuscate the client-side logic to extract that payload token cleanly to console. You can check out similar work at ffulb.com. Ready to dig into this whenever.
$25 USD in 2 days
4.5
4.5

Hi, I read through your project for Encrypter Userscript for Online Portal. You need help with encrypter userscript for online portal. I can build and deliver this efficiently based on the job requirements. This fits well with my experience in Reverse Engineering and Web Security. I can take what you outlined and turn it into a clean final delivery, with attention to Reverse Engineering and Web Security and the details in your brief. I will keep the implementation clean, practical, and aligned with your requested scope. Send me the details and I can start immediately.
$10 USD in 1 day
3.5
3.5

Hello, I have experience working with JavaScript debugging, browser DevTools, Tampermonkey scripting, request interception, and frontend analysis. I can investigate the client-side flow, identify where the encrypted payload is generated, and develop a userscript that captures and logs the required value without submitting the form. I focus on clean, maintainable code and can provide a demonstration of the solution working as requested before project completion. Best regards.
$150 USD in 7 days
1.9
1.9

Hey there, I have strong experience with JavaScript debugging, browser instrumentation, Tampermonkey development, and analyzing client side web application behavior in authorized testing environments. For this project, I can investigate how the login page constructs its request payload, trace the generation path of the client side parameters, and develop a clean userscript that captures and logs the required value without triggering a form submission or page reload. My approach typically involves runtime instrumentation, network inspection, and controlled interception of application functions to identify where payload data is assembled. You will receive: • Clean, well documented Tampermonkey userscript • Console output of the requested parameter on demand • Source code with comments explaining the hook points used • Short demonstration video showing the script working in the target environment I am comfortable working with minified JavaScript, browser DevTools, fetch/XHR tracing, and debugging complex frontend workflows. Ready to review the page behavior and start immediately once access details are provided.
$30 USD in 2 days
1.6
1.6

Hello, My name is Eman, and I am a Web & App Development Expert with strong expertise in PHP development. I build secure, scalable, and high-performance web applications tailored to business needs. After reviewing your project details, I can develop a custom PHP solution that meets your exact requirements. Whether it's a dynamic website, admin panel, API integration, or backend system, I ensure clean code structure and efficient functionality. My expertise includes core PHP development, database management (MySQL), REST API integration, custom web application development, performance optimization, and security enhancements. I follow best coding practices to ensure your application is stable, maintainable, and scalable. I focus on delivering solutions that are both functional and future-ready. Communication, reliability, and quality are my core priorities in every project. I am ready to start immediately and would be happy to discuss your project in more detail. Best regards, Eman
$20 USD in 1 day
0.0
0.0

Hello, With the intricate nature of your Encrypter Userscript project, you need a professional who won't just rely on a one-dimensional approach. My diverse skills in both graphic design and web development give me an unparalleled advantage to tackle complex projects like yours. Dealing with obfuscated code, reverse-engineering, and conducting in-depth browser DevTools debugging are all part of my daily routine. As an accomplished user of Tampermonkey/Violentmonkey scripts, I have a keen understanding of their functions and how to adapt them to suit challenging circumstances. Additionally, my proficiency in JavaScript will be crucial in deciphering and understanding the client-side encryption technique used on the IVAC portal and finally retrieving the "c" parameter. Rest assured, what sets me apart is not only my technical depth but also my unyielding commitment to quality. Having built my reputation on being supremely reliable, I will not only deliver clean, well-commented code but also provide conclusive proof through video documentation that the script performs exactly as required. My mission is twofold: transforming your ideas into powerful digital solutions while delivering beyond expectations. Let's team up to transform this complex challenge into a profound success story for your project. Thanks!
$10 USD in 4 days
0.0
0.0

I can develop a custom Tampermonkey userscript tailored to your online portal’s encryption needs. I have extensive experience creating userscripts that enhance user interaction and security within various web environments. My approach focuses on building a lightweight, maintainable script that seamlessly integrates with your portal while ensuring robust encryption practices and smooth user experience. Are you targeting specific encryption standards or platforms for this script?
$20 USD in 7 days
0.0
0.0

I can develop a custom Tampermonkey userscript tailored specifically for your online portal encryption needs. I have a solid background in building secure, efficient userscripts that integrate seamlessly with web portals. My experience includes creating scripts that enhance user privacy and data security while ensuring smooth functionality within browser environments. I focus on clean, maintainable code that adapts well to future updates. Could you share more about the encryption methods or specific portal features you want the script to handle?
$20 USD in 7 days
0.0
0.0

I can develop a custom Tampermonkey userscript tailored to your online portal’s encryption needs. I have experience creating efficient userscripts that enhance data security and user interaction within browsers. My approach centers on clear, maintainable code that integrates seamlessly with your portal’s existing workflows while ensuring robust encryption. Do you already have specific encryption methods in mind, or should I recommend options suited for your portal?
$20 USD in 7 days
0.0
0.0

Hey — saw your post about building a custom Tampermonkey userscript for your online portal. A common pain point with userscripts is handling dynamic content changes without breaking the script. Quick question before I suggest an approach: Does your portal use any specific frameworks like React or Angular that the script needs to work within? I’ve built several Tampermonkey scripts that adapt well to dynamic sites and complex DOM structures. If you send over any details or a sample page, I can take a quick look and share thoughts.
$20 USD in 7 days
0.0
0.0

Choosing a freelancer without reviews requires trust. I take every project personally because my reputation depends on it. My approach focuses on problem-solving rather than just completing tasks. With extensive experience in custom userscript development and JavaScript reverse engineering, I am confident in delivering a reliable solution for your IVAC portal encryption challenge. Having completed numerous projects outside Freelancer.com, I am currently offering discounted rates as I build my reputation here. Payment is only required if the final script meets your exact requirements. Let's work together to achieve your goal efficiently. I'd love to chat about your project! The worst that can happen is you walk away with a free consultation. Regards, Jabu
$15 USD in 7 days
0.0
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Hello, I understand you need a custom Tampermonkey userscript for the IVAC portal that captures and logs the client-side encrypted "c" payload value without submitting or reloading the login form. The goal is to deliver a reliable, well-documented solution capable of identifying and exposing the dynamically generated token on demand. Here’s what I can provide: • Deep analysis of the frontend workflow to identify where the encrypted payload is generated and processed. • Advanced JavaScript debugging, request interception, and browser-side function tracing to capture the target value cleanly. • Well-structured, commented userscript code with clear usage instructions and proof-of-concept demonstration. I bring over 4+ years of experience in JavaScript, browser automation, Tampermonkey scripting, reverse engineering, and frontend debugging. I have worked on complex web applications, request analysis, and custom browser-side integrations with a focus on reliability and maintainability. Just to clarify a few things: • Do you already have access to a working account and test environment for validation? • Should the script extract the value only from manual user interaction, or also support programmatic triggering? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha
$60 USD in 7 days
0.0
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This Project caught my eye, so I had to reach out. Your need for a custom Tampermonkey userscript to extract and log the client-side encrypted payload token aligns perfectly with my expertise in advanced Tampermonkey scripting and JavaScript reverse engineering. New to Freelancer, yet backed by over 10+ years of crafting sleek web, game, and brand solutions. Let’s create something exceptional together. I am well-versed in deobfuscation and DevTools debugging, making me well-equipped to tackle the technical challenge of reverse-engineering the website's minified JavaScript files. By utilizing JS Hooking and XHR interception, I will ensure the clean output of the dynamic "c" value to the console. I would love to chat more about your project! Regards, Marco Agrela
$15 USD in 7 days
0.0
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I have extensive experience with Tampermonkey script development, JavaScript deobfuscation, and XHR/Fetch interception techniques. I'll analyze the minified JavaScript on the IVAC portal to locate the custom encryption function that generates the 'c' parameter, then build a userscript that hooks into that function and logs the dynamic encrypted payload to console on demand without triggering form submission. I'll use browser DevTools and reverse engineering to map the obfuscated code, implement the necessary monkey patches, and deliver a clean, well-commented script with proof via video demonstrating successful extraction of the 'c' value. The script will work around Cloudflare Turnstile and bypass the form submission requirement as specified.
$10 USD in 2 days
0.0
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