What is digital certificate and also its significance
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A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it. ... Digital certificates are also used in other contexts, both online and offline, for providing cryptographic assurance and privacy of data.
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The most common use of a digital certificate is to verify that a user sending a message is who he or she claims to be, and to provide the receiver with the means to encode a reply. An individual wishing to send an encrypted message applies for a digital certificate from a Certificate Authority
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