Project Name: SecureSphere Decentralized Vault
Name of the organization or individual submitting the proposal:
Hani
Summary of Work Completed in Previous Grant
Mobile App
All core functionalities were implemented, tested, and optimized, including:
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Password manager with fully encrypted storage
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Encrypted backup and restore via the Sia network
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Breach monitoring module for compromised credential detection
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Support for self-hosted SIA nodes
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Updated and secure seed-based authentication system
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Usability, performance, and security testing completed across devices
Browser Extension
Key features delivered with verified cross-platform support:
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End-to-end encryption of all sensitive user data
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Secure authentication through seed phrase login and signup
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Integrated breach monitoring functionality
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Password manager with secure password generator
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Fully redesigned UI/UX for improved usability
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Compatibility with self-hosted SIA nodes
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Encrypted backup and restore features
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Verified cross-platform support (Chrome and Firefox)
The mobile app and browser extension are nearly ready for production. After the final feature additions and refinements, they will be submitted to app and extension stores.
This tested and functional foundation will serve as the core of our new grant proposal, which shifts the focus from early-stage experimentation to the development and delivery of a full-featured, production-ready version of SecureSphere.
We are applying for a Standard Grant instead of a Small Grant because the scope of this proposal includes multi-platform delivery (mobile, desktop, and browser extension), encrypted file sharing, and extended user features that go beyond the initial MVP. This next phase is about completing and releasing a stable, usable, and impactful version not starting from scratch, but building confidently on what has already been delivered.
Describe your project
SecureSphere is an open-source decentralized vault powered by the Sia network. It builds on a working MVP that includes password management and breach monitoring.
This new phase expands the project’s functionality across platforms, enabling encrypted file sharing and enhancing accessibility. Instead of creating a standalone plugin, we will directly integrate encrypted file storage and sharing via Sia into the core app stack mobile, desktop, and browser extension.
This grant covers development of:
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A mobile app upgrade for managing secure vaults (passwords, breach alerts, file storage) and QR-based login
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A Chrome extension update to provide quick access to vault contents, QR login, and improved usability
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A desktop app (macOS + Windows) that replicates mobile features:
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Password Manager
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Breach Monitoring
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Secure File Vault + Sharing (via SIA integration)
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This proposal responds to real institutional demand: two universities have expressed interest in deploying SecureSphere for their students, particularly with the file sharing capability.
Who benefits from your project?
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Everyday users gain full control over credentials and files with decentralized, encrypted, and cross-platform access
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Sia developers benefit from a full implementation example for encrypted file sharing using renterd
How does the project serve the Foundation’s mission of user-owned data?
SecureSphere is fully aligned with the Foundation’s vision:
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All data (files, passwords, identifiers) is encrypted client-side and stored on Sia
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Users retain 100% ownership over their digital identities and data
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The system operates without vendor lock-in, subscriptions, or third-party intermediaries
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Code and integrations are open-source, reusable, and extendable by the community
Are you a resident of any jurisdiction on that list?
No
Will your payment bank account be located in any jurisdiction on that list?
No
Grant Specifics
Amount of money requested and justification: $25,000 over 5 months
| Item | Amount | Notes |
|---|---|---|
| Development (full-time) | $24,000 | 5 months × 160 hours/month × $30/hour |
| Store & infrastructure fees | $1,000 | App/extension stores, server |
| Total | $25,000 |
Timeline with milestones
| Milestones | Milestone / Deliverable | Duration |
|---|---|---|
| 1 | Integrate Sia file storage (upload/download + encryption) in mobile app | 2 Months |
| 2 | Chrome extension upgrade (file access, QR login, UX improvements) | 1 Month |
| 3 | Desktop app (macOS & Windows) with full feature parity | 1.5 Months |
| 4 | QA Testing, security audit | 2 weeks |
Potential risks and mitigation
| Risk | Mitigation Strategy |
|---|---|
| Cross-platform delays | Modular timeline, shared codebase |
| Security vulnerabilities | Peer-reviewed code, open-source audits |
| Extension store limitations | Fallback features for browser compliance |
Development Information
Will all of your project’s code be open-source?
Yes
Where will the code be accessible?
GitHub: r00b00t · GitHub
(Repository structure will be created and documented upon grant approval.)
Do you agree to submit monthly progress reports?
Yes
Contact Info
Email: [email protected]
