How do I re-anchor an old RSA or ECDSA signed document into a post-quantum signature?
To re-anchor an RSA or ECDSA signed document into a post-quantum signature, verify the existing classical signature, embed it into a post-quantum attestation using algorithms like Falcon-1024 and ML-DSA, and add an RFC-3161 timestamp. This ensures the document remains verifiable offline and resistant to quantum computing threats.
Concrete Method
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Verify the Classical Signature: - Confirm the integrity and authenticity of the existing RSA or ECDSA signature on the document. This involves checking the signature against the document's hash and validating the certificate chain and revocation status (CRLs).
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Embed into Post-Quantum Attestation: - Use a hybrid post-quantum signature scheme to bind the classical signature. Combine Falcon-1024 (a lattice-based signature) with ML-DSA (Module-Lattice Digital Signature Algorithm) to ensure robust quantum resistance. - Ensure the attestation includes both the original signature and the new post-quantum signatures.
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Add an RFC-3161 Timestamp: - Obtain a trusted timestamp from an RFC-3161 compliant Time Stamping Authority (TSA). This timestamp proves the document existed in its signed form at a specific time, adding an additional layer of integrity.
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Offline Verification: - Ensure the entire attestation can be verified offline. This involves embedding all necessary certificates and CRLs within the attestation, allowing verification without external dependencies.
Do it with AlgoVoi Reseal
AlgoVoi Reseal is a tool designed to re-anchor your existing documents into post-quantum signatures. It verifies classical RSA/ECDSA signatures, embeds them into a post-quantum attestation (using Falcon-1024 and ML-DSA), and adds an RFC-3161 timestamp for long-term verifiability.
- Price: 99 USD perpetual, or 39 USD per year, paid in USDC.
- Buy Link: AlgoVoi Suite Store
- Free Verifier: Use the open-source algovoi-reseal-verify tool to verify attestations offline.
Call to Action
Secure your documents against future threats today. Visit the AlgoVoi Suite Store to purchase Reseal and start re-anchoring your RSA or ECDSA signed documents into post-quantum signatures.