Validating digital signature

15-Nov-2016 19:55

Each digital signature has an icon identifying its verification status.Verification details are listed beneath each signature and can be viewed by expanding the signature. This feature analyzes the document for content that may alter the appearance of the document.Actually, generally, security on a PDF can be broken down into a few options found within Acrobat X: Password security is the security method most of us use when we want to ensure that content can’t be copied from our PDF (among other things).

validating digital signature-66

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If the two are the same, he knows that the message was not tampered with, because only the sender has the private key, and there is no reasonable way to determine the private key from the public key. That's the Certificate Authority's job (CA for short).I know that digital signature will be attached to the message and sent by sender to receiver.then receiver uses the public key is used to verify it.So I started looking into the different security features that can be added to a PDF in Acrobat.

There seemed to be about a billion at first glance.You can validate that the document has not been altered since it was signed and verify the signatories' authenticity.

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