SEC GUY / JOB READY / ENCRYPTION LAB 04

Sign it. Change it. Catch it.

Create a temporary RSA-PSS signing key, sign a training approval, and test what happens when the message changes.

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04 / 10   AUTHENTICITYBrowser-based trainingSafe sample data only
UNDERSTAND THE IDEA

Digital signatures

THE CONCEPT

A signature is produced with a private signing key and checked with the corresponding public key. Verification supports integrity and signer authentication only when that public key is reliably bound to the signer.

YOUR MISSION

Generate and sign the sample, verify it, then edit the message and verify again.

INTERACTIVE / LAB 04

Try it yourself.

Use fictional input only. Your learning actions run locally in this browser tab.

Signature previewNo signature yet.
VerificationSign the original message first.
CHECK YOUR UNDERSTANDING

What should happen if the signed message changes?

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