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@lacspace/otp

v1.1.3Security Kit0 deps

TOTP & HOTP two-factor auth, Google Authenticator compatible — generate secrets, compute/verify codes and build otpauth:// QR URIs. Built on Web Crypto: runs on Node, edge and browser. Zero-dependency, isomorphic.

npm i @lacspace/otp
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Usage

otp.ts
import { generateSecret, keyuri } from "@lacspace/otp";

const secret = generateSecret();            // store this (encrypted) against the user
const uri = keyuri({ secret, label: "user@lacspace.com", issuer: "Lacspace" });
// otpauth://totp/Lacspace:user@lacspace.com?secret=…&issuer=Lacspace&algorithm=SHA1&digits=6&period=30
// → render `uri` as a QR code for the user to scan

Exports 13

base32Decodebase32EncodegenerateBackupCodesgenerateSecrethotpkeyurisetupTotptimeRemainingtotpverifyBackupCodeverifyHotpverifyTotpverifyTotpOnce

Keywords

otptotphotp2fatwo-factorauthenticator

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@lacspace/jwt

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@lacspace/mfa

Orchestrate multi-factor auth — combine password + TOTP + passkeys into 2FA/3FA step-up flows with NIST assurance levels (AAL). Zero-dependency (bar @lacspace/otp), isomorphic.

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