# Skuuy 2FA Authenticator (2fa.skuuy.com)

> 2fa.skuuy.com is a client-side Time-Based One-Time Password (TOTP) generator and multi-account security vault.
> Part of the open-source Skuuy Tools ecosystem (https://skuuy.com).
> Built to RFC 6238 and RFC 4226 standards. Compatible with Google Authenticator, Authy, Microsoft Authenticator, and Bitwarden.
> 100% Zero-Knowledge: Cryptographic HMAC calculations and AES-GCM operations execute locally in browser memory via native WebCrypto APIs (`crypto.subtle`). Secret keys are never transmitted over the network or logged to external servers.

## Core Capabilities

- [Quick TOTP Generator](https://2fa.skuuy.com/): Instant 6-digit verification code generation from manual Base32 secret keys or `otpauth://` URIs.
- [Multi-Modal QR Scanner](https://2fa.skuuy.com/): Scan QR codes via live webcam stream, image file drag-and-drop, or direct clipboard screenshot pasting (`Ctrl + V`).
- [Encrypted Multi-Account Vault](https://2fa.skuuy.com/vault): Secure offline token storage protected by AES-GCM 256-bit encryption with PBKDF2 key derivation (100,000 hashing rounds).
- [Sub-10ms Clock Drift Sync](https://2fa.skuuy.com/api/time): Millisecond-accurate timestamp synchronization against Anycast edge servers to eliminate device clock skew errors.
- [Adjacent Code Window](https://2fa.skuuy.com/): View previous (-30s) and upcoming (+30s) TOTP tokens to troubleshoot authentication synchronization issues.

## Parent Ecosystem

- Master Portal: https://skuuy.com
- Skuuy IP Intelligence: https://ip.skuuy.com
- Skuuy Temp Mail: https://mail.skuuy.com
- Skuuy Free Proxy: https://proxy.skuuy.com