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.

Make cryptography easy

Clearly separate the workflow of programmers, cryptographers and privacy analysts: facilitate reviews, updates and distributed architecture design.

Specs

Perform Elliptic Curve Pairing as well public/private a-symmetric key cryptography for ECDH and ECDSA and AES-GCM.

Attribute based credentials (ABC) and non-interactive zero knowledge proof (zk-SNARKS) based on Coconut.

Executes smart contracts in Lua or in Zencode: a non Turing-complete, English-like DSL, inspired by LangSec and BDD.

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. Language bindings: Js, Py, Go …

Written in C (ANSI C99), Zenroom runs on Linux, Windows, Mac, Android, iOS, WebAssembly, integrated Cortex chips and supports Seccomp.

low on resources
Highly scalable

~ 1

KB payload

~ 1

KB RAM usage (for basic crypto)

HASH/sec (on desktop PC)

Advanced Features

Attribute Based
Credential and zk-SNARKS

Zenroom implements the Coconut authentication flow, allowing developers to implement complex ABC and zk-SNARKS flows in minutes.

End-to-end cryptography
for distributed systems

Highly deterministic and replicable environment for the integrity of multiple cryptographic computations. Read more

Easy language
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

Community
Open Source

All our software is free and open source, we’re building inter-operability and coordinating efforts with DECODE, Sovrin, OW2, Cosmos and other communities.

Enterprise
support

We offer professional support for the integration with enterprise infrastructure and commercial products, along with dual licensing. Let us know about your project!