Generate STARK Proof

WHAT IT DOES

Generate STARK Proof enables you to produce STARK (Scalable Transparent ARgument of Knowledge) zero-knowledge proofs, a post-quantum secure proof system that does not require a trusted setup. STARKs are the foundation of modern scalability solutions including StarkEx, StarkNet, and various zk-rollup implementations. Unlike SNARKs, STARKs are transparent (no trusted setup), quantum-resistant, and scale efficiently to large computations. The tool takes circuit inputs (JSON or text), STARK proving parameters, and a security level preference (128-bit or 256-bit), and generates a complete STARK proof that demonstrates knowledge of inputs satisfying a computation without revealing those inputs. The proof system uses Merkle trees for polynomial commitment and the FRI (Fast Reed-Solomon Interactive Oracle Proof) protocol for low-degree testing. This tool supports post-quantum security and is compatible with standard STARK verification libraries.

HOW TO USE

Connect your wallet using the BGWallet connector (required for context). Select the input format: "JSON" for structured inputs (recommended) or "Text" for simple single-value inputs. Choose the security level: 128-bit (standard) or 256-bit (higher security, larger proof size). Enter the circuit inputs in the text area—these should match the structure expected by your circuit (e.g., {"a": "123", "b": "456"} for a simple arithmetic circuit). Paste your STARK proving parameters as a hex string with 0x prefix. Click "Generate Proof" to run the proof generation process. The tool displays the input format, security level, and the generated proof, which includes the Merkle root and FRI commitment data. You can copy the complete proof to your clipboard for use with smart contracts or off-chain verification systems.

TECHNICAL MECHANISM

This tool implements STARK proof generation following the STARK arithmetization and FRI protocol. The computation is expressed as an Algebraic Intermediate Representation (AIR) with constraints that must be satisfied by the execution trace. The prover computes the execution trace, interpolates it into polynomials using low-degree extensions, and commits to these polynomials using a Merkle tree. The FRI protocol is then used to prove that the committed polynomials are of sufficiently low degree, which ensures the constraints are satisfied. The STARK proof consists of the Merkle roots of the committed polynomials, the FRI protocol transcript, and the evaluation proofs. The security level determines the number of FRI rounds and the soundness error—128-bit provides standard security, while 256-bit provides post-quantum security with a larger proof size. The tool uses the STARK-friendly prime field and hash functions for all operations. All computation is performed locally in the browser with no data sent to external servers.

WHAT IT CANNOT SEE

This tool cannot verify that the inputs correspond to actual on-chain state or values—you must ensure the inputs are correct and match the circuit's expected format. It does not support all ZK proof systems (only STARKs). The tool cannot generate proofs without the circuit-specific proving parameters; these are required for proof generation. It does not support hardware acceleration for proof generation; all computation is done in software in the browser. The tool cannot verify the correctness of the proving parameters without additional trust assumptions; you must trust the parameter generation. It does not support proof generation for circuits larger than browser memory limits; very large circuits may cause performance issues or errors. The tool cannot guarantee the security of the generated proof if the proving parameters are compromised; parameter integrity is essential for security. It does not support proof aggregation or recursive proofs; it only generates a single proof for a single input. The tool cannot generate proofs for circuits with mutable or dynamic parameters; the circuit and parameters must be fixed. It does not support all STARK variants or customized AIR constraints beyond the standard implementation. The tool cannot generate proofs with post-quantum security guarantees beyond the specified security level.

PLEASE NOTE

This tool is designed for developers working with STARK proofs, which are increasingly adopted in blockchain scalability solutions due to their transparency and post-quantum security. STARKs do not require a trusted setup, eliminating the need for multi-party computation ceremonies. The proof size scales logarithmically with the computation size, making STARKs suitable for very large computations. The security level determines the proof size and generation time—128-bit is sufficient for most applications, while 256-bit provides future-proof security against quantum attacks. The proving parameters must be generated specifically for the circuit and security level. The tool uses a STARK-friendly field and hash functions optimized for performance. Always verify the generated proof using a standard STARK verification library before using it in production systems. The proof is deterministic for a given set of inputs and parameters, making it suitable for reproducible builds and testing. The tool is read-only and does not broadcast to the chain; it is intended for offline proof generation and testing.