We architect and deploy audit-ready smart contracts for DeFi, NFTs, and enterprise protocols. Our team specializes in Solidity and Rust, implementing OpenZeppelin standards and gas-optimized patterns to ensure security and efficiency from day one.
LABS
Services
Biometric Secured Card Authentication
We build secure, on-device biometric authentication systems for decentralized payment cards. Our solutions link user biometrics to decentralized identity, enabling fraud-resistant, passwordless transactions.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
Reduce your time-to-market with battle-tested code that passes initial security audits on the first review.
- End-to-End Development: From specification and
Hardhat/Foundrysetup to mainnet deployment and verification. - Security-First Approach: Formal verification, comprehensive unit/integration testing, and pre-audit review.
- Protocol Specialization: Custom
ERC-20,ERC-721, staking systems, DAO governance, and automated market makers (AMMs).
key-features-cards
SECURE, SCALABLE, COMPLIANT
Core Technical Capabilities
Our biometric card authentication platform is engineered for enterprise-grade security and performance, enabling you to launch secure payment products without building complex infrastructure.
01
Multi-Modal Biometric Authentication
Integrate fingerprint, facial, and voice recognition with liveness detection to prevent spoofing. Our SDKs support FIDO2/WebAuthn standards for passwordless, phishing-resistant authentication.
99.99%
Accuracy
< 500ms
Auth Time
02
On-Chain Identity & Key Management
Secure, non-custodial wallet generation where private keys are derived from biometric data. We implement MPC (Multi-Party Computation) and hardware-backed keystores, eliminating single points of failure.
Zero
Key Exposure
SOC 2 Type II
Compliance
03
Real-Time Fraud Prevention Engine
AI-driven behavioral analytics and on-chain monitoring to detect anomalous transaction patterns. Automatically blocks suspicious activity before settlement, reducing chargeback risk.
90%
Fraud Reduction
24/7
Monitoring
04
Regulatory Compliance & KYC Integration
Pre-integrated with leading KYC/AML providers. Our architecture is designed for GDPR, PSD2, and future MiCA compliance, with configurable rules for different jurisdictions.
150+
Countries
5 min
Onboarding
05
High-Availability Card Network Gateway
Direct, redundant connections to major card networks (Visa, Mastercard) and payment processors. Ensures sub-second authorization and 99.95% uptime for global transactions.
99.95%
Uptime SLA
< 1 sec
Auth Latency
06
Developer-First APIs & SDKs
RESTful APIs, Webhooks, and mobile SDKs (iOS/Android/Flutter/React Native) for rapid integration. Comprehensive documentation, sandbox environment, and dedicated technical support.
2 weeks
Avg. Integration
24h
Support SLA
benefits
PROVEN RESULTS
Business Outcomes for Your Payment Product
Deploy biometric card authentication that directly impacts your bottom line. We deliver measurable improvements in security, user growth, and operational efficiency.
01
Eliminate Card-Not-Present Fraud
Replace vulnerable 3DS with FIDO2/WebAuthn standards. Our biometric authentication reduces fraudulent transactions by up to 95% compared to OTP/SMS-based systems.
95%
Fraud Reduction
Zero
Phishing Risk
02
Accelerate User Onboarding
One-tap biometric enrollment with 99.5% first-time success rate. Reduce KYC drop-off by 70% and cut onboarding time from minutes to seconds.
70%
Lower Drop-off
< 30 sec
Avg. Onboarding
03
Reduce Operational Costs
Eliminate SMS/OTP infrastructure and support costs. Our serverless architecture scales automatically, cutting per-authentication costs by over 80%.
80%
Cost Reduction
$0.001
Per Auth Cost
04
Increase Transaction Approval Rates
Biometric verification satisfies Strong Customer Authentication (SCA) under PSD2/3D Secure 2.0, boosting legitimate transaction approval rates by 15-25%.
25%
Higher Approval
PSD2
SCA Compliant
05
Future-Proof Compliance
Built on ISO/IEC 30107-3 certified liveness detection and FIDO Alliance standards. Our architecture adapts to evolving global regulations like eIDAS 2.0.
ISO 30107
Certified
FIDO2
Standard
06
Seamless Cross-Platform Experience
Unified biometric flow across mobile apps, web, and physical POS. Maintain 99.9% authentication success rate regardless of user device or location.
99.9%
Success Rate
< 1 sec
Auth Latency
Why Modern Authentication Wins
Biometric Auth vs. Traditional Payment Security
A technical comparison of security, user experience, and operational impact for FinTechs and Web3 payment platforms.
| Security Dimension | Traditional PIN/2FA | Biometric Secured Authentication |
|---|---|---|
Authentication Method | Knowledge-based (PIN, Password) | Inherence-based (Fingerprint, Face) |
Fraud Prevention | Medium (Phishing, SIM Swap) | High (Liveness Detection, Spoof Resistance) |
False Decline Rate | 15-20% (User error) | < 1% (Deterministic biometrics) |
User Friction | High (Manual entry, OTP delays) | Low (Single-tap, < 1 second) |
Regulatory Compliance | PSD2 SCA, KYC | PSD2 SCA Strong Customer Authentication, GDPR-compliant |
Implementation Complexity | Medium (SMS/Email integration) | High (Secure Enclave, On-device matching) |
Ongoing Cost | SMS/OTP fees, Support for lost PINs | Fixed SDK/license, Reduced fraud-related costs |
Abandonment Rate Impact | Up to 30% at checkout | Reduces abandonment by 60%+ |
Cryptographic Proof | None | On-chain attestation for non-repudiation |
Recommended For | Legacy systems, Low-risk transactions | High-value DeFi, Mobile-first FinTech, Web3 wallets |
how-we-deliver
END-TO-END DELIVERY
Our Development & Integration Process
A structured, security-first approach to integrate biometric card authentication into your Web3 wallet or payment platform. We manage the full lifecycle from design to deployment, ensuring regulatory compliance and a seamless user experience.
01
Architecture & Protocol Design
We design the secure communication layer between your smart contracts, off-chain biometric hardware, and user devices. This includes defining the signature verification protocol and secure enclave interactions.
ISO 27001
Framework
FIDO2/WebAuthn
Standards
02
Smart Contract Development
Development of gas-optimized, audited smart contracts for permission management, transaction authorization, and non-repudiation. Built with Solidity 0.8+ and OpenZeppelin libraries.
2 Audits
Minimum
OpenZeppelin
Libraries
03
Hardware & SDK Integration
Secure integration with biometric hardware providers (e.g., YubiKey, Ledger) and mobile SDKs. We handle the cryptographic handshake and key management for fingerprint/facial recognition.
P2P Encryption
Data in Transit
Secure Enclave
Key Storage
04
Security Audit & Pen Testing
Comprehensive security review of the entire stack—smart contracts, API endpoints, and hardware communication. Includes a final penetration test simulating real-world attack vectors.
CertiK
Audit Partner
OWASP Top 10
Coverage
05
Staging & User Acceptance
Deployment to a staging environment for rigorous testing, including failure scenarios and recovery procedures. We facilitate UAT with your team to ensure the workflow meets all requirements.
< 2 ms
Auth Latency
100% Test Coverage
Critical Paths
06
Production Deployment & Monitoring
Managed deployment to mainnet with full observability. We provide 24/7 monitoring dashboards for transaction success rates, fraud attempts, and system health, with a 99.9% uptime SLA.
99.9%
Uptime SLA
24/7
Monitoring
security-architecture
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom Solidity/Rust contracts for DeFi, NFTs, and enterprise applications. Our process delivers audit-ready code with 99.9% uptime SLAs and gas-optimized execution.
- Full Lifecycle Development: From specification and
OpenZeppelin-based implementation to deployment and monitoring. - Security-First: Rigorous testing with Foundry/Hardhat and formal verification practices.
- Protocol Integration: Native support for
ERC-20,ERC-721,ERC-1155, and custom cross-chain standards.
Reduce your time-to-market from months to weeks with battle-tested, secure contract architecture.
Biometric Card Authentication
Frequently Asked Questions
Get clear answers on our development process, security, and timelines for implementing secure biometric card authentication.
A standard biometric card authentication system, including smart contracts, mobile SDK, and backend integration, is typically deployed in 4-6 weeks. This includes a 2-week discovery/design phase, 3 weeks of core development, and 1 week for integration testing and deployment. Complex enterprise integrations or custom hardware requirements can extend this timeline.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall