Overview
Decentralized wallet
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Kosh
Decentralized wallet
Blockchain Development Rust Engineering
04 Jul 2025
Solution Details
Overview
Kosh is a revolutionary cryptocurrency wallet that eliminates the need for seed phrases, private keys, or traditional wallet management. Built on the Internet Computer (IC) platform, it leverages cutting-edge threshold cryptography to provide secure, decentralized access to crypto assets, featuring full transaction capabilities on the Stellar network.
The Challenge
- Complex Key Management: Traditional crypto wallets force users to manage vulnerable seed phrases and private keys, introducing severe risks of permanent asset loss.
- Single Points of Failure: Centralized or standard key storage exposes users to high security risks and potential breaches.
- Onboarding Friction: Cumbersome passwords and setup procedures hinder user adoption and experience.
The Solution & Technical Architecture
Kosh delivers a secure, lightning-fast, and user-friendly experience through robust technical components:
- Internet Identity Integration: Provides secure, passwordless authentication supporting WebAuthn/FIDO2 standards, hardware security keys (like YubiKey), and secure recovery mechanisms.
- Rust Backend Canister: Runs on the Internet Computer to manage threshold signature generation, Stellar transaction building/signing, account balance querying, and secure user-specific key derivation.
- Threshold Cryptography: Utilizes native threshold ECDSA/Ed25519 where private keys are never stored or exposed in complete form; signatures are created dynamically through the consensus of IC subnet nodes.
- React & Vite Frontend: A modern, responsive user interface featuring real-time balance tracking, send/receive functionality, and multi-network readiness (Stellar, Bitcoin, Ethereum, Solana).
Impact & Results
- Successfully deployed a decentralized, keyless wallet architecture with zero single points of failure.
- Enabled sub-second transaction signing and submission via IC subnet consensus.
- Established full Stellar testnet integration with extensible foundations for multi-chain expansion (Bitcoin, Ethereum, Solana).
