NOTE: This repository has been archived. The most up-to-date code is at semaphore-protocol/semaphore and the npm package is published at @semaphore-protocol/heyauthn.
import { WebAuthnIdentity } from "semaphore-webauthn";
// STEP 1: Configure WebAuthn options
const options = {
rpName: "my-app",
rpID: window.location.hostname,
userID: "my-id",
userName: "my-name",
};
// STEP 2: Register a new WebAuthn credential and get its Semaphore identity
const newWebAuthnIdentity = await WebAuthnIdentity.fromRegister(options);
// Now we can save this commitment in our DB (pseudocode)
const { commitment } = newWebAuthnIdentity.getIdentity();
fetch("/api/register" /* Replace this with your endpoint */, {
commmitment,
// ...
});
// STEP 3: Authenticate existing WebAuthn credential and signal
const existingWebAuthnIdentity = await WebAuthnIdentity.fromRegister(options);
// Get existing group and anonymously signal (pseudocode)
import { Group } from "@semaphore-protocol/group";
import { generateProof } from "@semaphore-protocol/proof";
const group = new Group(groupId, groupSize);
group.addMembers(memberList);
generateProof(
existingWebAuthnIdentity.getIdentity(),
group,
groupId,
"this is a signal",
{
zkeyFilePath: "./semaphore.zkey",
wasmFilePath: "./semaphore.wasm",
}
);