Back to Home11/17/2025, 7:10:08 PM

Show HN: I built ephemeral authentication – no tokens, just vanishing proofs

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Mood

excited

Sentiment

positive

Category

tech

Key topics

authentication

cryptography

security

Show HN: Ephemeral Auth – Authentication without tokens using vanishing proofs

I built a React authentication library that eliminates tokens entirely. Instead of hackable JWT tokens that last for hours, it uses ephemeral cryptographic proofs that vanish after each request.

*The Problem:* Token theft gives attackers hours of access *The Solution:* Single-use sessions that self-destruct after one action

*Live Demo:* [your-render-link-here] *npm:* poof-auth-react

*How it works:* 1. Request ephemeral challenge (one-time math problem) 2. Solve challenge → get ephemeral session 3. Session vanishes after use - hackers get nothing!

*Features:* - No tokens to steal or manage - Quantum-resistant cryptography - Simple React API - TypeScript support

Perfect timing given recent token breaches and supply chain attacks. Would love feedback from the HN community!

Demo: https://poof-tech.onrender.com

The author presents a new React authentication library that uses ephemeral cryptographic proofs instead of tokens, eliminating the risk of token theft, and invites feedback from the HN community.

Snapshot generated from the HN discussion

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Light discussion

First comment

7m

Peak period

2

Hour 1

Avg / period

2

Comment distribution2 data points

Based on 2 loaded comments

Key moments

  1. 01Story posted

    11/17/2025, 7:10:08 PM

    1d ago

    Step 01
  2. 02First comment

    11/17/2025, 7:16:44 PM

    7m after posting

    Step 02
  3. 03Peak activity

    2 comments in Hour 1

    Hottest window of the conversation

    Step 03
  4. 04Latest activity

    11/17/2025, 7:31:52 PM

    1d ago

    Step 04

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ID: 45956885Type: storyLast synced: 11/17/2025, 7:12:04 PM

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