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DIGITAL SIGNATURE

What Is a Digital Signature? Digital Signature is a process that guarantees that the contents of a message have not been altered in transit. When you, the server, digitally sign a document, you add a one-way hash ( encryption ) of the message content using your public and private key pair. Your client can still read it, but the process creates a "signature" that only the server's public key can decrypt. The client, using the server's public key, can then validate the sender as well as the integrity of message contents. Whether it's an email an online order or a watermarked photograph on eBay if the transmission arrives but the digital signature does not match the public key in the digital certificate, then the client knows that the message has been altered. How does a Digital Signature Work? The digital signature can be considered as a numerical value that is represented as a sequence of characters. The creation of a digital signature is a...