Crypto smart-contract executor.
Zenroom is a tiny secure execution environment that integrates in any platform and application, even on a chip or a web page. It can authenticate, authorize access and execute human-readable smart contracts for blockchains, databases and much more. It helps to develop cryptography keeping it simple, understandable and maintainable.
Works with All curves
Zenroom supports signatures and pairing with most elliptic curves, see the full list here. The curves SECP256K1 (bitcoin, ethereum), BLS381 (ethereum 2.0), ED25519 (Cardano) are all built in by default and can be used together.
Deterministic execution end-to-end: in-browser, in-memory or distributed to a blockchain. Grants integrity across different platforms.
Tiny library or executable (1MB), low memory usage (600KB~2MB). No external dependencies. Has bindings for most languages.
Written in C (ANSI C99), Zenroom runs on Linux, Windows, Mac, Android, iOS, WebAssembly, integrated Cortex chips and supports Seccomp, see downloads.
low on resources
for distributed systems
Highly deterministic and replicable environment for the integrity of multiple cryptographic computations. Read more
for smart contracts
Makes it possible to design and review data protection systems without programming or the need to understand code. Read more
AGPL3 and Commercial licensing
All our software is free and open source, we’re building inter-operability and coordinating efforts with DECODE, Sovrin, OW2, Cosmos and other communities.
We offer professional support for the integration with enterprise infrastructure and commercial products, along with dual licensing. Let us know about your project!
Explore Zenroom documentation:
+ Command line interface
+ Zencode and Lua reference
+ Build, integrate and embed
+ Zenroom extensions
Learn Zencode with the auto-complete and with the examples on apiroom.net.
Play with Zenroom in-the-browser, powered Zenroom’s Webassembly build (WASM) and expose your smart-contracts into APIs.
Android libs: ARM | ARM64(AArch64) | X86
iOS libs: ARM(armhf) | ARM64(AArch64) | X86_64
Get zenroom.h and add: #include
Easy REST API builder executing Zencode: place a .zen file in a folder to expose an API.
Read/write data on Ethereum Bitcoin, Hyperledger Sawtooth and Fabric, Plenetmint, Redis, SQL and more.
Zenroom based blockchain swarm of Blockchain Oracles.
Zenroom based W3C-DID implementation. DIDs are built in Zenroom. Controller runs on nodejs, DIDs are stored on redis and anchored on blockchain.
Zenroom live demo
Watch a presentation of Zenroom's zero knowledge proof and attribute based credential flow, with a live demo of the crypto flow in a multiplatform setup.
Proudly crafted in the EU
This project received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement nr. 732546 (DECODE), and 820937 (REFLOW) by the NGI ASSURE program and by the EBSI PCP.