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What is digital signature?
Is a mathematical technique used to validate the authenticity and integrity of a message, software, or digital document.
Is a certificate issued by a CA to verify the identity of the certificate holder.
Is any author identification and verification mechanism used in an electronic system.
What is digital certificate?
is a certificate issued by a CA to verify the identity of the certificate holder.
Is a document that uses a digital signature to bind together a public key with an identity
What is the public key?
Must remain confidential to its respective owner.
It is made available to everyone via a publicly accessible repository or directory.
It is basically an encrypted hash of the message.
