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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Biometric Card Security Integration

Link physical identity to on-chain authorization. We integrate hardware-secured biometric sensors (fingerprint, facial recognition) with your crypto debit card platform for PIN-less, fraud-resistant transactions.
Chainscore © 2026
overview
FULL-STACK INFRASTRUCTURE

Custom Blockchain Development

End-to-end blockchain infrastructure tailored for your product's specific performance and security requirements.

We build production-grade blockchain systems from the ground up, delivering complete control and optimized performance. Our full-stack approach ensures every layer—from consensus to APIs—is designed for your use case.

Deliver a secure, scalable foundation in 4-8 weeks, not months.

  • Layer 1 & 2 Development: Custom EVM-compatible chains, zk-Rollup networks, and Substrate-based parachains.
  • Core Protocol Design: Tokenomics, governance models, and consensus mechanisms (PoS, PoA).
  • Node Infrastructure: High-availability validator setups with 99.9% uptime SLAs and multi-region deployment.
  • Developer Tooling: Custom block explorers, indexers, and JSON-RPC/WebSocket endpoints.
key-features-cards
SECURE, SCALABLE INTEGRATION

Core Technical Capabilities

Our engineering team delivers production-ready biometric security for blockchain cards, combining hardware-level security with smart contract logic for enterprise-grade applications.

01

Secure Element Integration

Direct integration with certified Secure Element (SE) and Trusted Execution Environment (TEE) chips (e.g., Infineon, NXP). We handle the low-level communication protocols to enable on-card private key generation and transaction signing, eliminating exposure to host systems.

CC EAL6+
Certification Level
On-Card
Key Generation
02

Smart Contract Wallets & Session Keys

Build Account Abstraction (ERC-4337) compliant smart contract wallets with integrated biometric authentication. Implement session keys for gasless transactions and programmable spending limits, controlled by fingerprint or facial recognition.

ERC-4337
Standard
Gasless UX
User Experience
03

Cross-Chain Transaction Orchestration

Biometrically-signed transactions that work seamlessly across EVM, Solana, and other L1/L2 networks. Our relayers and messaging layers ensure atomic composability, allowing a single card gesture to trigger multi-chain operations.

Multi-Chain
Network Support
< 3 sec
Relay Finality
04

Compliance & Audit-Ready Code

All integration code and smart contracts are developed with security-first principles, undergo formal verification where applicable, and are prepared for third-party audits (e.g., Trail of Bits, Quantstamp). Includes comprehensive documentation for regulatory reviews.

Audit-Ready
Code Quality
OpenZeppelin
Libraries
05

Real-Time Fraud Detection Engine

Embedded machine learning models analyze transaction patterns and biometric signal data in real-time to flag anomalous behavior. Triggers smart contract pausing or step-up authentication without degrading user experience.

< 100ms
Analysis Latency
Real-Time
Risk Scoring
06

Scalable Issuance & Lifecycle Management

Full-stack platform for managing the entire card lifecycle—from personalized applet provisioning and secure key injection at manufacture to remote updates and revocation via blockchain commands.

OTA Updates
Remote Management
Global Scale
Deployment
benefits
TANGIBLE RESULTS

Business Outcomes for Your Card Program

Our biometric security integration delivers measurable improvements in security, user experience, and operational efficiency for your card program.

01

Eliminate Card-Not-Present Fraud

Integrate on-card fingerprint authentication to replace static PINs and passwords. We deliver a certified biometric module that reduces CNP fraud by up to 95% and shifts liability away from your program.

95%
CNP Fraud Reduction
ISO 27001
Certified Module
02

Seamless, Frictionless User Onboarding

Deploy a white-label mobile SDK for biometric enrollment and card management. We ensure a sub-60-second enrollment flow, increasing activation rates and reducing support calls for lost PINs.

< 60 sec
Enrollment Time
40%
Lower Support Cost
03

Future-Proof Compliance & Interoperability

Our architecture is built on EMV® 3-D Secure 2.0 and PCI DSS standards. We ensure your program is ready for SCA (Strong Customer Authentication) regulations and global payment network interoperability.

EMV® 3DS2
Compliant
PCI DSS L1
Aligned
04

Accelerate Time-to-Market

Leverage our pre-certified hardware and software stack. We deliver a complete integration package, from secure element provisioning to backend API connectors, reducing your development timeline from months to weeks.

6-8 weeks
Integration Time
Pre-Certified
Hardware Stack
Security Infrastructure Comparison

Biometric Security vs. Traditional Authentication

A technical breakdown of how biometric card integration fundamentally upgrades security and user experience compared to legacy authentication methods for Web3 applications.

Authentication FactorTraditional PIN/PasswordBiometric Card (Chainscore)

Security Model

Knowledge-based (Something you know)

Inherence-based (Something you are)

Phishing/Skimming Risk

High

Near Zero

On-Chain Transaction Signing

Manual, Multi-step

Single-tap, On-card

Hardware Security Module (HSM) Integration

External device required

Embedded Secure Element (EAL6+)

User Onboarding Friction

High (Seed phrase management)

Low (Fingerprint enrollment)

Compliance (e.g., PSD2 SCA)

Requires 2FA overlay

Inherently compliant (Biometric = Inherence)

Average Auth Time

15-30 seconds

< 2 seconds

Implementation Timeline for Your App

4-8 weeks (SDK integration)

2-4 weeks (Full-stack API/SDK)

Ongoing Support & Updates

Your responsibility

Managed by Chainscore

Total Cost of Ownership (Year 1)

$50K-$150K+ (dev, security, support)

$15K-$50K (predictable subscription)

how-we-deliver
PROVEN FRAMEWORK

Our Integration Methodology

A structured, security-first approach to integrating biometric authentication into your Web3 payment cards, ensuring compliance, performance, and a seamless user experience.

01

Architecture & Security Audit

We begin with a comprehensive security review of your existing smart contracts and card infrastructure. Our team maps potential attack vectors and designs a zero-trust integration layer, ensuring biometric data never touches the blockchain directly.

100%
Coverage of OWASP Top 10
ISO 27001
Compliant Design
02

Hardware & Protocol Selection

We guide you in selecting certified biometric hardware (FIDO2/WebAuthn compliant) and the optimal on-chain verification protocol (e.g., zk-SNARKs for privacy). We handle the SDK integration for fingerprint, facial, or iris recognition.

FIDO2
Certified Hardware
< 100ms
Local Auth Time
03

Smart Contract Gateway Development

Our engineers develop and audit custom, gas-optimized smart contracts that act as a secure gateway. These contracts verify off-chain biometric attestations before authorizing on-chain transactions or minting session keys.

OpenZeppelin
Audited Base
30-40%
Avg. Gas Savings
04

End-to-End Testing & Compliance

We conduct penetration testing, simulate real-world attack scenarios, and ensure full compliance with GDPR, CCPA, and financial regulations (PSD2/SCA). We deliver a detailed audit report and certification readiness package.

Trail of Bits
Audit Partners
PSD2 SCA
Ready
05

Deployment & Key Management

We manage the phased deployment to testnet and mainnet, including secure provisioning of administrative keys and setting up multi-sig governance for contract upgrades. We ensure zero downtime during cutover.

< 2 weeks
Production Deployment
Gnosis Safe
Multi-sig Standard
06

Monitoring & Incident Response

Post-launch, we provide 24/7 monitoring of auth success/failure rates, fraud patterns, and contract health. Our team is on-call for immediate incident response and provides quarterly security review updates.

24/7
SOC Monitoring
99.9%
Auth Uptime SLA
security
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy custom smart contracts that form the backbone of your protocol. Our development process ensures security-first design, gas optimization, and comprehensive testing before mainnet deployment.

  • Full Lifecycle Development: From initial concept and architecture to deployment and post-launch maintenance.
  • Security Audits: All contracts undergo rigorous internal review and can be prepared for third-party audits from firms like OpenZeppelin or CertiK.
  • Protocol Standards: Expertise in ERC-20, ERC-721, ERC-1155, and custom implementations for DeFi, NFTs, and DAOs.

Reduce your time-to-market with battle-tested Solidity patterns and avoid costly vulnerabilities.

Our engineers deliver modular, upgradeable code using industry standards like the Proxy Pattern and libraries such as OpenZeppelin Contracts. We focus on gas-efficient logic to minimize user transaction costs and provide clear documentation for your team.

Biometric Card Security

Frequently Asked Questions

Get clear answers on our process, security, and timelines for integrating biometric authentication into your payment cards.

Our standard engagement follows a 4-phase process: Discovery & Architecture (1 week), Secure Element Integration (2-3 weeks), SDK & API Development (2-3 weeks), and Testing & Certification (1-2 weeks). A typical end-to-end deployment for a new card program takes 6-9 weeks. For existing card platforms, integration can be as fast as 4 weeks.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team