A cryptographic signature is a mechanism used to verify the authenticity and integrity of a message or piece of data. It provides proof that information was sent by the person who claims to have sent it, and hasn’t been altered. How it works A sender can use an encryption key to generate a unique digital “signature” for a message. The signature is then attached to the message, and can be verified by anyone who has the corresponding key. The verification process confirms both that the me...
