Non-repudiation: the sender cannot deny having sent the message.Integrity: the message was not altered during transit.Sender verification: the sender is who they claim to be.
In a sense, a digital signature is a “virtual fingerprint”, and once a document is signed with it, it becomes an embedded part of the document.ĭigital signatures serve three essential roles: What are digital signatures?Ī digital signature is a type of electronic signature that can be used to authenticate the person who signed a document. However, when it comes to digital documents, you can’t just scribble your John Hancock with a pen.įor this, we use digital signatures, and in this article we’ll explain what they are and how they are used to digitally sign emails. In fact, this might have even become an automatic response to someone putting a piece of paper in front of you. Whether you’re signing legal papers, the back of your bank card, or permission for your kid’s school field trip, you are using your signature pretty regularly.
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