Chapter 2 · Cybersecurity
Classroom activity

Digital Signature Lab

Create a signature on the left. Copy and paste it on the right to test it against the fixed data.

Create Digital Signature

Private key signs

Data to signEditable

Generated signature

Preparing a new demo key pair…

Public key verifies

Data used for verificationFixed

Order: 1042
Amount: EGP 500
Customer: Sara

This data stays the same, even when you edit the data on the left.

Signature to verify

Copy a signature from the left and paste it above.

Creating a fresh key pair for this activity. Both sides use the same pair.

New data needs a new signature. That new signature must be checked against the data it was created for.