| --- |
| title: WaveSign |
| emoji: 🔏 |
| colorFrom: blue |
| colorTo: green |
| sdk: streamlit |
| sdk_version: 1.32.0 |
| app_file: app.py |
| pinned: false |
| license: other |
| python_version: 3.11 |
| short_description: Invisible physics-based file authentication - images/PDFs |
| --- |
| |
| # WaveSign — Invisible File Authentication |
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| Sign and verify images and PDFs with an invisible cryptographic signature. Any modification after signing is detected instantly. |
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| ## Evaluation Results |
|
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| | Metric | Result | |
| |---|---| |
| | **Tamper Detection Rate** | **100%** on all visible modifications | |
| | **False Rejection Rate** | **0%** | |
| | **Key Specificity** | **100%** | |
| | Signing time | 148 ms mean | |
| | Invisibility (PSNR) | 41.6 dB mean | |
|
|
| Tested across 900 cases, 22 scenarios. Full results: [EVALUATION.md](https://github.com/roloport/WaveSign/blob/main/EVALUATION.md) |
|
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| ## How It Works |
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| WaveSign uses a proprietary physics-based method to embed an invisible cryptographic signature into your file: |
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| 1. Secret key → deterministic signing mask |
| 2. File content → invisible embedded signature |
| 3. Dual-layer verification: content signature + integrity hash |
| 4. Any modification — pixel edit, brightness change, crop, compression — invalidates the signature |
|
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| Your secret key never leaves your device. |
|
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| ## Usage |
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| **Sign:** Upload file → enter secret key → download signed package (.zip) |
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| **Verify:** Upload signed file → upload .json verification file → enter key → instant result |
|
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| ## Links |
|
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| - GitHub: [roloport/WaveSign](https://github.com/roloport/WaveSign) |
| - Full Evaluation: [EVALUATION.md](https://github.com/roloport/WaveSign/blob/main/EVALUATION.md) |
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| © 2026 roloport |
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|
