Class ExampleScenario9

java.lang.Object

co.ankatech.ankasecure.sdk.examples.ExampleScenario9

public final class ExampleScenario9
extends Object

Scenario 9 – RSA-2048 → ML-DSA-65 Bulk Re-sign (Compact JWS)

This scenario migrates a Compact JWS signature from a classical RSA-2048 key to a post-quantum ML-DSA-65 key without uploading the payload again:

1. Generate an RSA-2048 key and sign a file.
2. Verify the RSA-based JWS.
3. Generate an ML-DSA-65 key.
4. Re-sign the payload on the server (RSA → ML-DSA).
5. Verify the new ML-DSA JWS.

Implementation notes (Java 21+):

• Filesystem APIs rely on Path.
• UTF-8 encoding is enforced explicitly for deterministic behaviour.
• Temporary artefacts reside under temp_files/.

Thread-safety: this class is stateless and immutable.

Since:

2.1.0

Author:

ANKATech – Security Engineering

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Entry-point.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

main

public static void main(String[] args)

Entry-point.