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:

1. Key-pair generation – classical RSA-2048.
2. Streaming sign – the SDK uploads the file in chunks and receives a detached JWS (General JSON) whose payload is null.
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 leverages the Path API.
• UTF-8 is explicitly specified for deterministic encoding.
• Directory creation uses Files.createDirectories(Path, FileAttribute[]).

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

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.

Parameters:

args - ignored