Token, Session, and 2FA Workflow Tools

Token, Session, and 2FA Workflow Tools | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Overview

This hub is for the work that sits between "users need to sign in" and "the auth flow is safe to ship." It keeps nonce and PKCE generation, JWT creation and inspection, JWK and key material prep, HMAC verification, 2FA code testing, and identifier generation together so teams can debug token behavior, stage login flows, and validate one-time credentials without jumping across unrelated security pages.

When to use

Modern auth flows rarely depend on one artifact. Teams usually need to generate a nonce or PKCE pair, inspect a JWT, confirm a signing key, and test OTP or TOTP behavior in the same session.
Keeping token, session, key, and one-time code tools together makes it easier to move from login design to real debugging when a callback state, bearer token, signature, or verification code looks wrong.
The included JWT, OAuth, and WebAuthn samples give users realistic fixtures for testing browser sign-in flows, API auth handoffs, and MFA edge cases before rollout.

How it works

1token bootstrap
2session state and pkce
3jwt signing and inspection
4mfa and one-time codes
5auth identifiers

Use cases

token workflow tools
session nonce and pkce generator
jwt inspector and security auditor
jwk and signing key tools
hmac token verification
totp and otp testing tools
oauth openid connect auth samples
uuid and auth identifier generator

FAQ

What makes this different from the auth-token-security hub?

The broader auth hub centers on passwords and hash choices, while this one centers on the short-lived materials that travel through real login and API flows: nonce, PKCE, JWTs, JWKs, HMAC signatures, OTPs, TOTPs, and request identifiers.

When should I use OTP versus TOTP/HOTP tools?

Use Numeric OTP Generator when you need standalone verification codes for SMS, email, support, or QA. Use TOTP / HOTP Offline Code Generator when you are testing authenticator-style shared-secret flows or need to compare counter-based and time-based behavior.

Why include UUID and Base64URL tools next to JWT and JWK pages?

Auth debugging often breaks on surrounding pieces rather than the token body itself. UUIDs help with request and session tracing, while Base64URL checks help verify encoded headers, claims, PKCE values, and JWK-related token parts.

Token, Session, and 2FA Workflow Tools

What this hub helps you accomplish

Tools inside this hub

Sample stories related to this hub

Continue with adjacent topic clusters

Learn when to use this tool, what it supports, and how real users apply it.

Overview

When to use

How it works

Use cases

FAQ

Secure Random Generator

Nonce & Token Generator

Base64URL Encoder/Decoder

JWT Generator

JWT Decoder

JWT Decoder & Security Auditor

JWK Generator & Parser

Key Pair Generator

RSA Key Pair Generator

HMAC Generator & Verifier

TOTP / HOTP Offline Code Generator

Numeric OTP Generator

UUID Generator

UUID Validator

JWT Samples

OAuth 2.0 Samples

OAuth 2.0 & OpenID Connect Samples

WebAuthn Passwordless Authentication

Authentication, Password, and Token Security Tools

Key Generation, Signatures, and Trust Verification Tools

API Request Replay, Snippet, and Runtime Debugging Tools

API Contract Testing, Mocking, and Schema Review Tools