Imagine a smart contract that calculates your portfolio balance, checks a compliance rule, or computes a royalty — but never sees a single number. The data stays encrypted the entire time. That's FHE: Fully Homomorphic Encryption. Smart contracts that process your data without ever revealing it.
An livestock farmer pushes his digitized delivery notes (BL) encrypted onto the blockchain. A dairy advisor writes a smart contract with his own formulas to calculate a performance indicator — feed efficiency, milk quality score, cost ratio.
The smart contract runs on the farmer's encrypted data. It computes the indicator and returns an encrypted result. The advisor never sees the farmer's raw numbers — prices, volumes, margins stay private. The farmer decrypts the result and gets his indicator. Two companies collaborate without exposing their data to each other.
Enterprise A pushes encrypted data on-chain (traceability, invoices, sensor data). Enterprise B deploys a smart contract with its formulas. Enterprise A authorizes Enterprise B's contract to compute on its encrypted data. The contract runs — only encrypted data flows. Each party keeps its secrets. The blockchain guarantees the computation is correct.
European leader in developer-friendly FHE. concrete-ml compiles standard Python models into FHE circuits automatically. TFHE-rs delivers ultra-fast boolean operations in Rust.
zama.ai →The most comprehensive FHE library — supports all 4 schemes (BGV, BFV, CKKS, TFHE). Born from DARPA research. Open-source, BSD-2-Clause license. Used by ATSHI for on-chain encrypted computation.
openfhe.org →Google's open-source FHE compiler. Automatically optimizes FHE circuits — selects the right scheme, manages noise budgets, generates WASM code. Makes FHE accessible without cryptography expertise.
github.com/google/heir →Each scheme optimized for a different workload — and ATSHI can switch between them on the fly.
Zero rounding errors. 100 + 50 = exactly 150. For financial calculations, voting, compliance, audit trails.
Fast · ExactSIMD batching processes thousands of encrypted values at once. Ideal for analytics, statistics, and complex formulas on encrypted data.
Fast · AnalyticsMillisecond decisions. Encrypted threshold checks, private auctions, access control. Powered by Zama's TFHE-rs.
Very Fast · LogicUse CKKS for heavy calculations, switch to TFHE for exact comparisons — in the same transaction, no re-encryption. Unique to ATSHI.
Best of BothFor developers who code — and for business users who don't.
Write your smart contract in Rust or AssemblyScript. Call FHE operations via native host functions — encrypt, compute, decrypt — like any API call. FHE is a first-class function inside the WASM runtime, not an external service.
Drag & drop your business logic in a visual interface. The platform generates the FHE smart contract automatically — no cryptography expertise, no coding required.
No-Code FHE Builder — Screenshot Coming Soon
Visual drag & drop interface for building confidential smart contracts
Encrypted positions, no front-running, no MEV. Institutional-grade privacy for on-chain trading.
Learn More →Encrypted AI inference with per-call royalties. Data never exposed, model IP protected.
Learn More →Royalties computed on encrypted values — sale price never visible on-chain.
Learn More →Compute on encrypted patient data — diagnostics without exposure. HDS compliant.
Encrypted portfolio analysis, credit scoring, AML checks — regulators audit without seeing client data.
Encrypted supplier data, auditable compliance. Share proof without exposing business secrets.
| Feature | Secret Network | Fhenix | Zama fhEVM | ATSHI Network |
|---|---|---|---|---|
| Privacy model | TEE (hardware) | FHE (L2) | FHE (EVM) | FHE — full on-chain |
| Trust assumption | Intel SGX hardware | Ethereum L1 | EVM chain | Pure math — zero hardware trust |
| Execution | Off-chain TEE enclave | L2 rollup | EVM smart contract | On-chain — inside WASM runtime |
| Data & compute | Data leaves chain | Data on L2 | Data on EVM | 100% on-chain — data + compute + result |
| FHE schemes | N/A (TEE) | TFHE only | TFHE only | BGV + BFV + CKKS + TFHE |
| Scheme switching | N/A | No | No | CKKS ↔ TFHE on-the-fly |
Compute on encrypted data. Protect privacy by math, not by trust. Build on the first L1 with native FHE.