Package co.ankatech.ankasecure.sdk.examples

Class ExampleScenario2

java.lang.Object

co.ankatech.ankasecure.sdk.examples.ExampleScenario2

public final class ExampleScenario2
extends Object

Scenario 2 — RSA-2048 Streaming Sign / Verify.

This walkthrough illustrates a detached-JWS workflow on a pre-provisioned key (the SDK is data-plane-only — it does not create keys):

1. Key resolution — resolve a pre-provisioned RSA-2048 key from the demo playground.
2. Streaming sign — the SDK uploads the file in chunks and receives a detached JWS: flattened JWS JSON {"protected", "signature"} with RFC 7797 "b64": false, carrying no payload member.
3. Streaming verify — the same detached signature is verified against the binary payload with constant memory.

Rule of thumb:

• Non-streaming → compact JWS / compact JWE
• Streaming → detached JWS / detached JWE

All artefacts are written under temp_files/.

Implementation notes (Java 21+):

• File handling relies on the Path API.
• UTF-8 is enforced explicitly for deterministic encoding.
• Directory creation delegates to ExampleUtil.ensureTempDir(java.nio.file.Path).

Thread-safety: the class is stateless and immutable; all variables are confined to the current thread.

See Also:

• ExampleUtil
• ExamplePlaygroundKeys
• AuthenticatedSdk

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Runs the RSA-2048 streaming sign/verify scenario.

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)

Runs the RSA-2048 streaming sign/verify scenario.

Loads CLI properties, authenticates against ANKASecure©, and delegates to the scenario logic. On any unrecoverable error the JVM terminates via ExampleUtil.fatal(String, Throwable).

Parameters:

args - command-line arguments (ignored)