We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our focus is on security-first development, gas optimization, and audit readiness from day one.
AppChain Custom Key Management Systems
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Custom Logic: Build
DeFiprimitives,NFTmarketplaces, or enterprise-grade token systems. - Security Patterns: Implement
OpenZeppelinstandards and formal verification for critical functions. - Gas Efficiency: Optimize for up to 40% lower transaction costs through advanced Solidity patterns.
- Full Lifecycle: Development, testing (
Hardhat/Foundry), deployment, and post-launch monitoring.
We deliver battle-tested contracts with a documented security posture, enabling you to launch with confidence and pass third-party audits efficiently.
Core Capabilities of Our Custom KMS
Our dedicated Key Management System is engineered for Web3 applications requiring the highest standards of security, compliance, and operational control. We deliver the cryptographic backbone for your AppChain.
Multi-Party Computation (MPC) Wallets
Eliminate single points of failure with distributed key generation and signing. Our MPC architecture ensures no single party ever has access to a complete private key, providing institutional-grade security for treasury and hot wallet operations.
Hardware Security Module (HSM) Integration
Integrate with certified HSMs (AWS CloudHSM, GCP HSM, Thales) for root-of-trust key storage. We manage the complex orchestration layer, allowing your smart contracts to securely sign transactions via on-premise or cloud HSM clusters.
Granular Policy Engine & Governance
Define and enforce transaction policies with role-based access control (RBAC). Set multi-signature thresholds, spending limits, whitelists, and time-locks programmatically to match your organizational security posture and compliance needs.
Cross-Chain & Multi-Asset Support
Manage keys and sign transactions natively for Ethereum, EVM L2s, Solana, Cosmos, and other major protocols from a unified interface. Our abstraction layer handles chain-specific signature schemes (ECDSA, EdDSA) seamlessly.
Audit-Ready Compliance & Monitoring
Every cryptographic operation is immutably logged with non-repudiation proofs. Generate comprehensive audit trails for SOC 2, ISO 27001, or financial regulatory requirements directly from our dashboard.
High-Availability & Disaster Recovery
Deploy across multiple availability zones with automatic failover. Our active-active architecture and geographic key sharding ensure zero downtime for signing operations and instant recovery from regional outages.
Why a Custom KMS is Critical for Your AppChain
A purpose-built Key Management System is the non-negotiable core of a secure, scalable, and compliant AppChain. Off-the-shelf solutions introduce unacceptable risks and operational bottlenecks.
Regulatory & Custody Compliance
We design KMS architectures that meet specific jurisdictional requirements for digital asset custody (e.g., SOC 2, GDPR, MiCA). Isolate and manage keys for regulated vs. non-regulated operations within a single system.
Mitigate Single Points of Failure
Eliminate the catastrophic risk of a centralized key store. Our designs implement distributed key generation (DKG), multi-party computation (MPC), and geographic secret sharding to ensure no single breach compromises your chain.
Granular Access & Governance
Define precise, role-based policies for validator key usage. Enable multi-signature approvals for upgrades, emergency pauses, or treasury transactions directly within your chain's governance model.
Operational Resilience & SLAs
Guarantee validator uptime and transaction finality with automated, non-custodial key rotation, failover, and disaster recovery procedures. Our managed services include enforceable SLAs for system availability.
Audit Trail & Forensic Readiness
Maintain an immutable, cryptographically verifiable log of all key-related actions—generation, usage, rotation, revocation. Essential for security audits, compliance proofs, and incident investigation.
Future-Proof Technical Debt
Avoid the costly migration from a basic KMS later. We build on modular, upgradeable architectures that seamlessly integrate new cryptographic standards (e.g., post-quantum algorithms) and scaling solutions.
Custom KMS vs. Generic Wallet SDKs
A technical and operational comparison for CTOs deciding between building a custom Key Management System or using off-the-shelf wallet SDKs for their AppChain.
| Critical Factor | Generic Wallet SDKs | Chainscore Custom KMS |
|---|---|---|
Security Model | Shared, multi-tenant | Dedicated, single-tenant |
Key Custody & Control | Third-party provider | Your infrastructure, your keys |
Compliance & Audit Trail | Limited logs | Full, immutable audit logs |
Custom Signing Logic | Not possible | Fully programmable (e.g., MPC, policy engines) |
Integration Complexity | Low (embed widget) | Moderate (API-based) |
Time to Production | 1-2 weeks | 4-8 weeks |
Ongoing Maintenance | Vendor-managed | Fully managed by Chainscore |
Annual Total Cost (Est.) | $0-$50K (usage fees) | $150K-$500K (custom SLA) |
Uptime & Reliability SLA | Best-effort (99%) | Contractual 99.9% SLA |
Support & Incident Response | Community/Standard | 24/7 Dedicated SRE Team |
Our End-to-End Delivery Process
From initial architecture to production deployment, our structured process ensures your custom key management system is delivered on time, within budget, and built to enterprise-grade security standards.
Architecture & Threat Modeling
We conduct a comprehensive security assessment to design a key management architecture tailored to your AppChain's consensus mechanism and threat model. This includes defining key lifecycle policies, access controls, and disaster recovery procedures.
HSM Integration & Multi-Party Computation
We implement secure key generation, storage, and signing using Hardware Security Modules (HSMs) and MPC/TSS protocols. This eliminates single points of failure and ensures private keys are never exposed in plaintext.
Custom Smart Contract Development
Our team develops and audits the on-chain components, including governance modules for key rotation, multi-sig wallets, and permissioned access controls specific to your AppChain's validators and operators.
Rigorous Security Audits
Every line of code undergoes internal review followed by a formal audit from a leading third-party firm like Trail of Bits or Quantstamp. We provide a detailed report and remediate all critical/high findings before deployment.
Staged Deployment & Integration
We deploy your KMS to a testnet environment for integration testing with your AppChain nodes. Following successful validation, we manage the production rollout with zero-downtime migration strategies.
Monitoring, Support & Key Rotation
We provide 24/7 monitoring dashboards, alerting on anomalous signing attempts, and operational support. Our service includes automated, scheduled key rotation procedures to maintain long-term security.
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts that form the secure foundation of your protocol. Our development process is built on audited code patterns and battle-tested frameworks like OpenZeppelin to mitigate risk from day one.
- End-to-End Development: From ideation and
Solidity/Rustcoding to deployment onEVM/Solana/Cosmoschains. - Security-First Approach: Rigorous internal review, formal verification, and preparation for third-party audits by firms like CertiK or Quantstamp.
- Gas Optimization: Every contract is optimized for minimum execution cost, directly impacting your users' transaction fees.
We deliver contracts that are secure by design, enabling you to launch with confidence and scale without rewriting core logic.
Key Management for AppChains: FAQs
Answers to the most common technical and commercial questions about building custom, secure key management systems for your application-specific blockchain.
Our standard engagement follows a fixed-scope, fixed-price model. After a 1-2 week discovery and scoping phase, typical development and deployment for a custom key management system takes 4-6 weeks. This includes architecture, smart contract development, integration, security audit, and deployment to your testnet/mainnet. We've delivered over 30+ secure key management systems with this proven process.
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Our experts will offer a free quote and a 30min call to discuss your project.