Question

What is a digital signature?

Answer 1

A digital signature is a cryptographic technique used to validate the authenticity and integrity of a digital message, document, or electronic communication. It involves the use of a private key to sign the message, and a corresponding public key to verify the signature. This ensures that the message has not been altered or tampered with, and that it indeed originated from the expected sender. Digital signatures are commonly used in electronic transactions, secure communication, and data integrity verification.

Answer 2

A digital signature is a cryptographic technique used to verify the authenticity and integrity of a message, document, or software. It involves using a private key to encrypt the message and a public key to decrypt it, providing assurance that the message has not been altered and was created by the expected sender. It also ensures non-repudiation, meaning the sender cannot deny sending the message.