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Project Description Highlights The Mission: We are building "QuantumShield," a high-performance, user-friendly desktop application that protects sensitive SMB data against "Harvest Now, Decrypt Later" threats using standardized Post-Quantum Cryptography. Key Technical Focus: This is not a standard encryption project. We require implementation of ML-KEM (Kyber) and ML-DSA (Dilithium) within a Hybrid Cryptographic Scheme (PQC + Classical AES-256). The Deliverable: A functional MVP for Windows/macOS featuring a "One-Click Shield" drag-and-drop interface and a "Quantum Health Dashboard" that monitors file vulnerability status. Required Tech Stack: High-performance systems programming (e.g., Rust, C++, or Go) with direct experience using the Open Quantum Safe (liboqs) library or OpenSSL 3.4+ PQC providers. The "Fitbit" for Data: The front-end must be sleek and non-technical, translating complex cryptographic states into a simple, visual Security Health Score. Specific Skills to Tag To ensure your post reaches the right freelancers, use these tags: Cryptography Cyber Security Rust / C++ Programming Network Security Algorithm Development NIST Standards (FIPS 203/204) To prove you have read this entire brief, please begin your proposal by telling me which specific NIST-standardized algorithm you recommend for digital signatures in 2026
Project ID: 40293276
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73 freelancers are bidding on average $6,301 USD for this job

Hello, I will build QuantumShield, a high-performance MVP for Windows and macOS that protects SMB data against Harvest Now, Decrypt Later threats using a Hybrid PQC+AES scheme. The core tech will integrate ML-KEM (Kyber) and ML-DSA (Dilithium) within a robust framework, using liboqs or OpenSSL 3.4+ PQC providers. The MVP will offer a crisp One-Click Shield interface for drag-and-drop protection and a Quantum Health Dashboard that translates cryptographic state into a simple Security Health Score. I will implement fast, safe Rust/C++/Go components with a clear boundary between cryptography, file I/O, and UI so you get top performance and reliable security. The deliverable will include clear documentation, tests, and a minimal yet complete UI that non-technical users can understand. I will replace complexity with visuals, keeping a lean architecture that scales as you add PQC features. Which deployment model do you prefer for QuantumShield: local desktop-only, or a hybrid with lightweight cloud-assisted checks, and what level of telemetry do you require for the Security Health Dashboard? Best regards,
$8,000 USD in 24 days
9.2
9.2

Hello! I have gone through with your requirement and understand that you are building QuantumShield, a desktop application designed to protect SMB data from “Harvest Now, Decrypt Later” threats using a hybrid post-quantum cryptography model. For digital signatures in 2026, I recommend ML-DSA (Dilithium), the NIST standardized algorithm defined under FIPS 204. It is currently the primary NIST-approved post-quantum signature scheme and offers strong security with practical performance for real-world systems. I can help develop the MVP desktop application using a high-performance language such as Rust or C++, integrating ML-KEM (Kyber) for key encapsulation and ML-DSA (Dilithium) for signatures through Open Quantum Safe (liboqs) or OpenSSL 3.4+ PQC providers. The system will implement a hybrid encryption model combining PQC with AES-256, ensuring compatibility and forward security. The application will include the One-Click Shield drag-and-drop interface for file protection and a Quantum Health Dashboard that visualizes cryptographic status as a clear security health score for non-technical users. I would be glad to discuss the architecture for the MVP and the best approach for integrating liboqs with a performant desktop UI. Best regards, Jasmin
$6,000 USD in 7 days
9.3
9.3

Having read the project description and your tags, I would wholeheartedly recommend NIST-standardized ML-DSA (Dilithium) for digital signatures in 2026. Its exceptionally high security level, combined with its efficient and speedy performance makes it an excellent choice. With my extensive experience in firmware development, C/C++ programming, and network security, I am confident that I can successfully implement both ML-KEM (Kyber) and ML-DSA (Dilithium) algorithms into your QuantumShield application. My specialized skills in large-scale systems programming using C/C++, Rust and network security provide the essential foundation to handle a cutting-edge project like this. I am also well-versed with the Open Quantum Safe (liboqs) library, which is crucial for implementing Post-Quantum Cryptography standards. Moreover, my command over Python, Linux and circuit design adds flexibility to my multidisciplinary approach that you might find valuable.
$8,500 USD in 60 days
8.1
8.1

⭐⭐⭐⭐⭐ Build QuantumShield for Enhanced Data Security with Post-Quantum Cryptography ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project details and see you are looking for a developer to create "QuantumShield," a desktop application for protecting sensitive data. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed over 50 similar projects in cybersecurity and encryption. I will implement the ML-KEM and ML-DSA algorithms within a hybrid cryptographic scheme to ensure robust security while delivering a user-friendly interface. ➡️ Why Me? I can easily build your QuantumShield application as I have 5 years of experience in cryptography and systems programming. My expertise includes Rust and C++, along with a strong grip on Open Quantum Safe and OpenSSL. I focus on creating efficient, high-performance solutions. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ Cryptography ✅ Cyber Security ✅ Rust Programming ✅ C++ Programming ✅ Network Security ✅ Algorithm Development ✅ Post-Quantum Cryptography ✅ Open Quantum Safe (liboqs) ✅ OpenSSL 3.4+ ✅ User Interface Design ✅ MVP Development ✅ NIST Standards (FIPS 203/204) Waiting for your response! Best Regards, Zohaib
$4,800 USD in 2 days
7.9
7.9

Since 2015 I have been working in C/C++/C# programming and 10(ten) years of experience in C/C++/C# programming. Windows Desktop Application, Console Application, Image Processing and have knowledge in Driver Development in C. Expert in data structure building and Object Oriented Programming (OOP). Have a great experience in C++ MFC and C++ WinUI 3 for GUI design and development. Also expert in C/C++ GPU CUDA programming. If you want a good delivery of the project, then send me a message, please.
$8,000 USD in 60 days
7.4
7.4

With over a decade of experience in web and mobile development, including specialized expertise in blockchain and AI/ML, I understand the unique challenges of your project "QuantumShield." You require a high-performance desktop application utilizing Post-Quantum Cryptography to protect sensitive SMB data, a task that demands a deep understanding of ML-KEM (Kyber) and ML-DSA (Dilithium) within a Hybrid Cryptographic Scheme. In the realm of cybersecurity and algorithm development, I have successfully delivered projects that align closely with your requirements. My experience with blockchain technologies and smart contracts can seamlessly integrate with the encryption standards you are aiming for. To ensure the success of your project, I am eager to discuss how my skills and past successes in similar domains can be leveraged to create a sleek and user-friendly MVP for Windows/macOS. Let's collaborate to build a "QuantumShield" that not only meets but exceeds your expectations. I look forward to the opportunity to work with you on this important project. Feel free to reach out to me to discuss further details or ask any questions you may have related to your project needs.
$6,400 USD in 60 days
7.2
7.2

Hello, ML-DSA (CRYSTALS-Dilithium) is the NIST-standardized algorithm recommended for digital signatures under FIPS 204 for 2026-ready PQC deployments. I HAVE CAREFULLY REVIEWED YOUR RFP FOR QUANTUMSHIELD AND UNDERSTAND THE REQUIREMENT TO BUILD A HIGH-PERFORMANCE MVP IMPLEMENTING HYBRID POST-QUANTUM CRYPTOGRAPHY USING ML-KEM (KYBER) AND ML-DSA (DILITHIUM) WITH A USER-FRIENDLY DESKTOP EXPERIENCE. With 10+ years of experience in secure systems development, C++/Rust programming, and cryptographic integrations, I can deliver the end-to-end MVP architecture including: • Hybrid Crypto Engine: ML-KEM (Kyber) for key encapsulation + AES-256 for symmetric encryption + ML-DSA (Dilithium) signatures using liboqs or OpenSSL 3.4+ PQC provider • High-Performance Implementation: Core engine in Rust/C++ optimized for large-file encryption and low latency • Crypto-Agile Architecture: Modular abstraction layer allowing future algorithm replacement (Falcon, SPHINCS+) without refactoring the application • Desktop Integration: Drag-and-drop “One-Click Shield” interface for Windows and macOS • Security Dashboard: React-based Quantum Health Dashboard translating cryptographic states into a simple visual Security Health Score • Secure API Layer: PQC-hardened backend endpoints for monitoring, alerts, and remote status tracking I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE.
$6,000 USD in 7 days
6.8
6.8

"As NIST now recommends a hybrid approach, transitioning towards Post-Quantum Cryptography (PQC) i recommend FIPS 208 / SP 800-208" .. Hello Sir as I am computer engineer and i have master degree in cryptography from faculty of engineering and i published already in IEEE so sure I know how to make you reach to success , I am certified LabVIEW software desktop architect from NI Emerson USA . so may i can help you please , thanks,,
$8,000 USD in 7 days
6.5
6.5

Hello, I understand you require a research-focused solution for eigenvalue problems in layered media, specifically analyzing progressive waves. I have strong expertise in Mathematica and wave physics, enabling step-by-step solutions with detailed derivations. My approach ensures all results are academically rigorous and fully traceable. I will provide graphical representations of eigenvalues and wave behavior across layered structures, including mode shapes, dispersion relations, and other relevant visualizations. Each figure will be labeled and described for clarity. The deliverable includes a complete Mathematica notebook with calculations, stepwise solutions, plots, verification, and a concise research paper detailing methodology, findings, and implications. Thanks, Asif
$10,000 USD in 25 days
6.4
6.4

Hello Sir, Have you considered how a cutting-edge Post-Quantum Cryptography solution could safeguard your data before finalizing your project? Our expertise in implementing robust PQC systems using ML-KEM and ML-DSA within a user-friendly interface sets us apart. Let's connect to discuss how we can turn QuantumShield into a reality. Best, Smith
$6,000 USD in 7 days
6.2
6.2

Hello — I’m Iosif, a systems engineer focused on secure infrastructure, cryptographic systems, and high-performance backend platforms. I’ve built security-sensitive systems using hybrid encryption and strong cryptographic primitives where reliability and deterministic behavior are critical. For the QuantumShield MVP budget, I propose a lean Rust-based implementation using liboqs or OpenSSL PQC providers implementing the hybrid scheme: • ML-KEM (Kyber) for key encapsulation (FIPS 203) • ML-DSA (Dilithium) for signatures (FIPS 204) • AES-256-GCM for symmetric file encryption Scope for the MVP: • Core hybrid PQC encryption engine • Drag-and-drop “One-Click Shield” file protection • Basic Quantum Health indicator (file status scoring) • Simple desktop UI (Rust + Tauri) • Windows/macOS builds with reproducible setup This MVP focuses on proving the hybrid PQC protection model and usability, leaving deeper analytics and dashboard expansion for later iterations. The architecture will remain modular and upgradeable, allowing the platform to evolve into a full “Quantum Health Dashboard” product without refactoring the cryptographic core.
$7,000 USD in 21 days
6.3
6.3

Hello, For digital signatures in 2026, I recommend **ML-DSA (CRYSTALS-Dilithium)**, the NIST-standardized algorithm defined in **FIPS 204**, as it offers strong security against quantum attacks while maintaining practical performance for real-world applications. I’m very interested in helping build QuantumShield and have experience working with systems-level development and modern cryptographic libraries, including hybrid cryptographic architectures that combine post-quantum algorithms with classical encryption like AES-256. I can implement the ML-KEM (Kyber) + ML-DSA scheme using liboqs or OpenSSL PQC providers, while building a secure, high-performance core in Rust or C++ and pairing it with a clean desktop interface that translates cryptographic states into a clear “Security Health Score.” The result will be a functional MVP with the drag-and-drop “One-Click Shield” workflow and the Quantum Health Dashboard that makes advanced PQC protection accessible for SMB users. Best regards, Juan.
$5,000 USD in 7 days
5.3
5.3

Being a Software Engineer with a degree in Software Engineering and Information Systems and over 5 years of experience under my belt, I am confident in my ability to deliver high-quality solutions that meet the exacting standards of your project. With a strong academic background and hands-on expertise, I can confidently say that both the High-Performance system programming (Rust and C++) you need for this project, as well as other required technical stack such as OpenSSL 3.4+ PQC providers and Open Quantum Safe (liboqs) libraries are within my repertoire. On top of my technical expertise in Cryptography, Cybersecurity, Network Security, and Algorithm Development, I have direct experience in implementing NIST standards (FIPS 203/204) in previous projects. This background makes me well-suited to tackle the unique challenge this project presents by integrating multiple cryptographic schemes (ML-KEM, ML-DSA) within the Hybrid Cryptographic Scheme.
$7,233.33 USD in 5 days
5.5
5.5

Your project caught my attention right away. The MVP development for "QuantumShield," a PQC file security application, Let me know if you'd like to jump on a quick call to go over the details.
$5,548.64 USD in 7 days
5.1
5.1

Greetings, I recommend ML DSA 65 for digital signatures in 2026 because it gives a strong balance of security, speed, and practical file signing for a desktop MVP. I will build QuantumShield with a fast Rust or C++ core using liboqs or OpenSSL PQC support, combine ML KEM with AES 256 in a hybrid scheme, and make the app simple with one click protection, drag and drop flow, and a clear health dashboard that turns complex crypto status into an easy security score. I will keep the MVP focused, standards based, and smooth on Windows and macOS so the product feels powerful but easy for SMB users. Sincerely, Oleksandr
$6,000 USD in 7 days
4.7
4.7

Hello, I’m Karthik, a Technology Architect with 15+ years of experience in secure systems, cryptography-enabled platforms, and high-performance software development. I can build the QuantumShield MVP desktop application for Windows/macOS with a hybrid PQC architecture (ML-KEM Kyber + ML-DSA Dilithium + AES-256) using Open Quantum Safe (liboqs) or OpenSSL 3.4+ PQC providers. Approach • High-performance backend in Rust/C++ for secure file operations • Hybrid PQC + AES-256 encryption pipeline • Drag-and-drop “One-Click Shield” UI for file protection • Quantum Health Dashboard showing visual security health score • Clean, secure architecture with proper testing and documentation Deliverables ✔ Functional MVP desktop app (Windows/macOS) ✔ Hybrid PQC encryption implementation ✔ Structured source repo with build instructions ✔ Technical documentation and testing validation I focus on security-first architecture, performance, and usability for production-ready solutions. Best regards, Karthik Software & Security Architect | 15+ Years Experience
$7,500 USD in 7 days
5.1
5.1

Greetings! I’m a top-rated freelancer with 16+ years of experience and a portfolio of 750+ satisfied clients. I specialize in delivering high-quality, professional services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival
$4,000 USD in 30 days
4.4
4.4

Hey, your project, MVP Development: Post-Quantum Cryptography (PQC) File project looks like a great fit for my skills. I've worked on similar C Programming projects and can deliver solid results. Let me know if you'd like to chat about the approach.
$4,000 USD in 7 days
4.2
4.2

Hello, Greetings , Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Network Security, C++ Programming, Software Architecture, Java, Software Engineering, Data Protection, C Programming, Software Development, Cryptography and OpenSSL. For more information about me, please refer to my portfolios. I am checking your attachment, I'll update you shortly... I’m ready to discuss your project and start immediately. "Fitbit" Looking forward to hearing you back and discussing all details.. Thank you for your attention
$6,660 USD in 5 days
3.8
3.8

Hi there! Data protection against “Harvest Now, Decrypt Later” attacks is critical, especially for SMBs handling sensitive files. You need a secure, user-friendly solution that simplifies post-quantum encryption without confusing end users. I have experience developing high-performance desktop applications in Rust and C++ with cryptographic libraries like Open Quantum Safe and OpenSSL 3.4+. I have implemented hybrid PQC + classical schemes and designed dashboards that translate complex cryptography into simple, actionable metrics. My approach will deliver a cross-platform MVP featuring a drag-and-drop “One-Click Shield,” a real-time Security Health Dashboard, and seamless file protection using Kyber for key encapsulation and Dilithium for digital signatures, all wrapped in AES-256 for fast classical encryption. check our work https://www.freelancer.com/u/ayesha86664 For digital signatures in 2026, I recommend using Dilithium, which is NIST-standardized and efficient for PQC adoption. Do you want the dashboard to also provide automatic alerts when new files are added to monitored folders? Let me know if you’re interested & we can discuss it. Best Regards Ayesha
$6,800 USD in 50 days
4.0
4.0

Annapolis, United States
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