Formal Verification & ZKP Circuit Security

Overview

ScaleBit applies formal verification methods and mathematical proof techniques across its security engagements, and offers zkScanner — a proprietary automated vulnerability scanner for Zero-Knowledge Proof (ZKP) circuit source code — as a dedicated product for teams building with ZKP technology.

Formal Verification in Audits

ScaleBit's smart contract security audits incorporate formal verification techniques to mathematically prove contract correctness, going beyond manual code review to provide the highest assurance of on-chain logic integrity. For blockchain protocol assessments, ScaleBit applies formal security research expertise including Zero-Knowledge proof system circuit and implementation review, with optional integration of zkScanner tooling. The team's formal verification capabilities are backed by 20+ published academic papers on blockchain security topics.

zkScanner — Automated ZKP Circuit Security Tool

zkScanner is ScaleBit's proprietary automated vulnerability scanner designed specifically for ZKP circuit source code. It enables development teams and security researchers to identify critical vulnerabilities in ZK circuits quickly and without requiring deep formal verification expertise.

Key Capabilities

• Automated scanning: Minimal parameter configuration required — zkScanner produces a vulnerability report directly upon execution
• Data and control flow analysis: Advanced analysis of ZKP circuit structure to detect logical and structural vulnerabilities
• Model checking: Integrates model checking techniques to identify the most critical issues in ZK circuits
• Broad vulnerability coverage: Designed to detect a comprehensive range of vulnerability classes specific to ZKP circuit implementations

Use Cases

• Pre-audit scanning to identify issues early in development
• Ongoing security monitoring of ZKP circuit codebases
• Supplementary tooling for manual ZKP circuit audits
• Developer self-assessment for ZK-Rollup, zkEVM, and other ZKP-based applications

Target Users

Blockchain teams building with ZKP technology including ZK-Rollup projects, zkEVM implementations, privacy protocol developers, and teams deploying circuits on zkSync, StarkNet, Polygon zkEVM, or similar platforms.