sm-crypto-wasmChina crypto, compiled to WebAssembly

SM2 / SM3 / SM4 / SM9 / ZUC — one API for Node 18+ and modern browsers. Split per algorithm, lazy-loaded on demand.

An order of magnitude faster

Elliptic curves and bilinear pairings run in WASM. SM4's six modes are 3.6–11.2× faster than a pure-JS reference, SM2 1.8–7.6×, SM3 3.1–3.5× and ZUC 2.3×.

Zero toolchain

The published artifact is .wasm plus a thin TS shim. No node-gyp, no Rust, no compiler for your users.

Runtime-agnostic

The same API works in Node 18+, modern browsers and Web Workers. Deno / Bun take the Node path.

Standards-aligned

Implementations follow the GM/T 0003 / 0004 / 0002 / 0044 / 0001 series, cross-validated against official vectors, OpenSSL, GmSSL and gmkitx.

A Playground per algorithm

Every algorithm page can load the real wasm in your browser, take parameters and show the result — including the exact error type the library throws.

Input sniffing

hex / base64 / PEM / Uint8Array are detected automatically and output defaults to hex, so you skip a layer of hand-written encoding.

Start here

Installation & Quick Start — install the package and run your first hash.
SM3 · SM4 · SM2 · SM9 · ZUC — one page per algorithm.
Using a Single Algorithm — sub-path imports when bundle size matters.
Error Handling — key-side vs ciphertext-side failures.
Performance — measured numbers for every public operation.

Documentation status

The Chinese pages are the complete reference — full parameter tables, usage and live Playgrounds for all five algorithms. These English pages carry the core material; the per-algorithm API tables are being translated.

The shape of this library

Each algorithm is its own namespace exposing ensureLoaded() plus business functions. The wasm is split per algorithm: only the algorithm you call gets loaded. await algo.ensureLoaded() once, then every business call is synchronous.