Question

Which term is used to describe a public-key, cryptography-based mechanism for proving the source (and possibly integrity) of a dataset or message?

Answer 1

The question below has multiple answers

a)      Trusted third party

b)      Symmetric Cryptography c)       Algorithm d)      Digital signature The answer is (D) Digital Signature It uses the private key of a sender and is a mathematical technique that validates the integrity and authenticity through a public key encryption of a digital or a software document. It is normally attached to digital or a software document to verify the sender’s identity and its content.

Answer 2

The term digital signature is used to describe a public-key, cryptography-based mechanism for proving the source (and possibly integrity) of a dataset or message. 
Digital signature enables authentication which means that the receiver knows that  the message was created by a known sender