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What is QuantumAuth?

QuantumAuth is a formless, passwordless, hardware‑rooted authentication platform designed to eliminate the need for login screens, passwords, tokens, and traditional identity flows in modern applications.

Instead of requiring users to authenticate individually with each app, QuantumAuth lets users log in once on their own device, using the QuantumAuth Client. From that moment on, every application running on that device can authenticate the user automatically — without ever handling credentials.

QuantumAuth allows developers to completely remove:

  • passwords
  • login forms
  • OAuth/OIDC complexity
  • session management
  • token storage or refresh logic
  • secret handling

Applications simply rely on the QuantumAuth SDK, and the platform takes care of identity verification end‑to‑end.

Core Concept: Hardware‑Bound Identity​

QuantumAuth anchors identity in the user’s device hardware:

  • A TPM-backed keypair is generated locally.
  • The private key never leaves the TPM.
  • The QuantumAuth Client signs authentication requests using:
    • TPM signatures (hardware identity)
    • Post‑quantum signatures (future‑proof cryptography)

The QuantumAuth Server verifies these signatures and ensures the request came from a valid user/device pair.
No passwords. No secrets in transit. No credential storage.

One-Time Device Login​

Users authenticate once on their device using the QuantumAuth Client.

After that:

  • The device becomes trusted by QuantumAuth.
  • All apps on the device can authenticate through the Client.
  • Authentication becomes invisible and frictionless.

There is no per-app login flow — the platform handles everything.

How Apps Use QuantumAuth​

Apps interact with QuantumAuth in two steps:

1. The frontend calls the QuantumAuth Client​

It requests a signed authentication proof for the action the user is taking.

2. The backend verifies the proof via the QuantumAuth SDK​

The SDK sends the proof to the QuantumAuth Server, which validates it and returns:

{
  "authenticated": true,
  "userId": "USER-UUID-HERE"
}

The backend now knows the identity of the user — securely and without ever handling a password or token.

Why QuantumAuth Exists​

Modern authentication is fragile:

  • Passwords get stolen.
  • Tokens leak.
  • OAuth/OIDC is too complex.
  • Credential storage creates liability.
  • Developers repeatedly implement authentication wrong.

QuantumAuth solves all of this by removing authentication from applications entirely.

QuantumAuth’s goals:​

  • Eliminate passwords
  • Remove login flows from applications
  • Make authentication invisible for users
  • Provide cryptographically strong, device-bound identity
  • Future-proof authentication with post-quantum security
  • Give developers a simple, zero-config way to authenticate users

QuantumAuth in One Sentence​

QuantumAuth is a hardware-rooted, post-quantum authentication platform that lets users log in once on their device and eliminates passwords, tokens, and login screens for every app.