Legal Definitions - digital signature

A digital signature is an electronic version of a person's signature. It's like a unique electronic fingerprint that identifies the signer. It's a way to verify that a message, email, credit cardtransaction, or digital document is authentic and hasn't been tampered with.

For example, when you sign a document with a pen, your signature is unique to you and can be used to verify that you signed the document. Similarly, a digital signature is unique to the signer and can be used to verify that the digital document was signed by the correct person and hasn't been altered.

Overall, a digital signature is a secure way to ensure that digital communications are authentic and haven't been tampered with.