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 document that uses a digital signature to bind together a public key with an identity

is a certificate issued by a CA to verify the identity of the certificate holder.

It is made available to everyone via a publicly accessible repository or directory.

Must remain confidential to its respective owner.

It is basically an encrypted hash of the message.

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1What is digital signature?
1. AIs a mathematical technique used to validate the authenticity and integrity of a message, software, or digital document.
2. BIs a certificate issued by a CA to verify the identity of the certificate holder.
3. CIs any author identification and verification mechanism used in an electronic system.
2What is digital certificate?
1. Ais a certificate issued by a CA to verify the identity of the certificate holder.
2. BIs a document that uses a digital signature to bind together a public key with an identity
3What is the public key?
1. AMust remain confidential to its respective owner.
2. BIt is made available to everyone via a publicly accessible repository or directory.
3. CIt is basically an encrypted hash of the message.