This repository aims to streamline the process of writing circuits in Typescript using halo2-lib-wasm. To discuss or collaborate, join our community on Telegram.
To build your own halo2-wasm
module, see this README.
Install halo2-js
in your own JS/TS project with
pnpm install @axiom-crypto/halo2-js
or use your favorite package manager (npm, yarn, etc.).
The halo2-wasm
package already has an abstract CircuitScaffold
that must implemented. Here is an example using Halo2LibWasm
and Halo2CircuitRunner
:
import { Halo2LibWasm, CircuitConfig, CircuitScaffold } from "@axiom-crypto/halo2-wasm/web";
import { Halo2CircuitRunner, Halo2Lib } from "@axiom-crypto/halo2-js";
export class WebCircuitScaffold extends CircuitScaffold {
halo2Lib!: Halo2LibWasm;
constructor(options) {
super(options);
}
newCircuitFromConfig(config: CircuitConfig): void {
super.newCircuitFromConfig(config);
if (this.halo2Lib) this.halo2Lib.free();
this.halo2Lib = getHalo2LibWasm(this.halo2wasm);
}
async populateCircuit(circuit: (halo2Lib: Halo2Lib, inputs: any) => Promise<void>, inputs: any) {
this.newCircuitFromConfig(this.config);
this.timeStart("Witness generation");
await Halo2CircuitRunner(this.halo2wasm, this.halo2Lib, this.config).run(circuit, inputs);
this.timeEnd("Witness generation");
}
}
import { Halo2LibWasm, CircuitConfig, CircuitScaffold } from "@axiom-crypto/halo2-wasm/js";
import { Halo2CircuitRunner, Halo2Lib } from "@axiom-crypto/halo2-js";
export class JsCircuitScaffold extends CircuitScaffold {
halo2Lib!: Halo2LibWasm;
constructor(options) {
super(options);
}
newCircuitFromConfig(config: CircuitConfig): void {
super.newCircuitFromConfig(config);
if (this.halo2Lib) this.halo2Lib.free();
this.halo2Lib = getHalo2LibWasm(this.halo2wasm);
}
async populateCircuit(circuit: (halo2Lib: Halo2Lib, inputs: any) => Promise<void>, inputs: any) {
this.newCircuitFromConfig(this.config);
this.timeStart("Witness generation");
await Halo2CircuitRunner(this.halo2wasm, this.halo2Lib, this.config).run(circuit, inputs);
this.timeEnd("Witness generation");
}
}