We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our development follows OpenZeppelin standards and includes formal verification for critical logic.
LABS
Services
Rust-Based Zero-Knowledge Circuit Audit
Specialized security review for ZK circuits and proving systems built in Rust. We identify critical vulnerabilities in memory safety, concurrency, and dependencies before they reach production.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- End-to-End Development: From specification and
Solidity/Rustcoding to deployment and mainnet verification. - Security-First: Multi-stage audits, including automated analysis (
Slither,MythX) and manual review by our in-house experts. - Gas Optimization: We reduce transaction costs by 20-40% through efficient coding patterns and storage strategies.
Deliver a secure, audited, and gas-optimized contract suite in 4-6 weeks, ready for integration with your frontend and backend systems.
key-features-cards
PROVEN PROCESS
Our Rust ZK Audit Methodology
Our systematic, multi-layered audit approach is designed to identify critical vulnerabilities and architectural flaws in your Rust-based zero-knowledge circuits, ensuring mathematical correctness and production readiness.
01
Architecture & Specification Review
We begin with a deep dive into your circuit's design and formal specifications. We verify the soundness of your proof system (Groth16, Plonk, etc.), the completeness of constraints, and the correctness of the underlying cryptographic assumptions.
100%
Spec Coverage
Day 1
Critical Findings
02
Mathematical & Cryptographic Analysis
Our cryptographers scrutinize the circuit's core math. We analyze elliptic curve operations, field arithmetic, hash functions (Poseidon, Rescue), and potential side-channels to ensure the proof's security is theoretically sound.
Zero-Knowledge
Property Verified
Soundness
Proof Guarantee
03
Rust Code & Implementation Audit
Manual and automated review of your Rust codebase (arkworks, bellman, etc.) for logic errors, side-channel vulnerabilities, memory safety issues, and adherence to Rust best practices. We check for overflows, unsafe blocks, and inefficient constraints.
SLOC
Line-by-Line Review
Clippy/Cargo-audit
Tool Integration
04
Constraint System & Circuit Logic
We map the Rust implementation back to the R1CS or PLONK constraint system. We verify that all business logic is correctly encoded, gates are properly formed, and there are no under-constrained or contradictory conditions.
Logic Bugs
Primary Target
R1CS/PLONK
Formal Verification
05
Integration & Adversarial Testing
We test the circuit within its intended environment (on-chain verifier, prover client). This includes fuzzing, differential testing against a reference implementation, and simulating malicious prover/verifier behavior to uncover integration flaws.
Adversarial
Test Cases
End-to-End
System Validation
06
Comprehensive Reporting & Remediation
You receive a detailed report with CVSS-scored vulnerabilities, proof-of-concept exploits, and clear remediation guidance. We provide a re-audit to verify fixes and a final certification of audit completion for your stakeholders.
Actionable
Remediation Steps
Public/Private
Report Options
benefits
EXPERTISE MATTERS
Why Choose a Specialized Rust ZK Audit
Zero-knowledge circuits are foundational to security and performance. A generic audit misses critical Rust-specific vulnerabilities and optimization opportunities. Our dedicated focus ensures your ZK stack is secure, efficient, and production-ready.
01
Rust-Specific Vulnerability Detection
We identify memory safety issues, concurrency bugs, and cryptographic misuse unique to Rust ZK implementations. This prevents exploits that generic auditors miss, securing billions in TVL.
100%
Memory Safety Focus
O(1) Audits
For Common Rust Bugs
02
Circuit Logic & Constraint Optimization
Our auditors review the mathematical soundness of your ZK circuits and constraints. We optimize for prover time and proof size, directly reducing your operational costs and improving user experience.
Up to 40%
Prover Time Reduction
Plonk, Halo2, R1CS
Framework Expertise
03
Integration & Protocol Security
We audit the integration of your ZK circuits with on-chain verifiers (Solidity, Cairo) and off-chain provers. This end-to-end review prevents critical failures at the protocol layer.
Full Stack
Audit Coverage
Zero
Integration Assumptions
04
Performance Benchmarking & Gas Analysis
Receive detailed benchmarks for proof generation/verification times and on-chain gas costs. Our reports provide actionable data for scaling decisions and cost forecasting.
Detailed
Gas Cost Reports
Comparative
Benchmarking
05
Audits by ZK Protocol Architects
Your audit is conducted by engineers who have built production ZK systems. This deep protocol-level insight uncovers subtle logic flaws and design inefficiencies.
5+ Years
Avg. ZK Experience
Protocol-Level
Review Depth
06
Remediation Support & Best Practices
We don't just list issues. We provide prioritized fixes, code samples, and architectural guidance aligned with Rust and ZK best practices to fortify your codebase long-term.
Prioritized
Fix Roadmap
Code Samples
Included
Transparent Pricing & Service Levels
Audit Scope & Deliverables
A detailed breakdown of our Rust-based ZK circuit audit packages, designed to match your project's security requirements and development stage.
| Audit Component | Starter | Professional | Enterprise |
|---|---|---|---|
Rust Circuit Code Review | |||
Zero-Knowledge Proof Logic Audit | |||
Cryptographic Primitive Analysis | |||
Groth16/Plonk/Other Prover System Review | |||
Performance & Gas Optimization Review | |||
Formal Verification Report | |||
Remediation Support & Re-Audit | 1 round | 2 rounds | Unlimited |
Average Report Delivery | 10 business days | 7 business days | 5 business days |
Post-Audit Consultation | 1 hour | 4 hours | Dedicated Engineer |
Starting Price | $15,000 | $45,000 | Custom Quote |
process-walkthrough
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 is built on security-first principles, utilizing OpenZeppelin libraries, comprehensive unit testing, and formal verification where required to mitigate risk.
- Full-Stack Development: From
ERC-20/721/1155tokens to complex DeFi logic, cross-chain bridges, and DAO governance systems. - Security & Auditing: Rigorous internal review cycles, integration with tools like
SlitherandMythX, and preparation for third-party audits. - Gas Optimization: Expert-level code to minimize transaction costs, a critical factor for user adoption and protocol efficiency.
We deliver audit-ready code within agreed sprints, enabling you to launch with confidence and scale without refactoring.
Zero-Knowledge Circuit Audits
Frequently Asked Questions
Get clear answers on our specialized audit process for Rust-based zk-SNARK and zk-STARK circuits, designed for CTOs and technical founders.
We employ a three-phase methodology: 1) Specification & Design Review – We analyze your circuit logic, constraints, and threat model against the intended functionality. 2) In-depth Code Audit – Our experts manually review the Rust implementation (e.g., using arkworks, bellman) for cryptographic soundness, side-channel resistance, and logical bugs. 3) Formal Verification & Tooling – We use specialized static analyzers and property-based testing to mathematically verify constraint systems. This process has secured over $2B+ in ZK-protected assets across 30+ projects.
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