Public Key Certificate - Contents of A Typical Digital Certificate

Contents of A Typical Digital Certificate

See also: The contents of X.509, the digital certificate widely used in the Internet

Serial Number: Used to uniquely identify the certificate.

Subject: The person, or entity identified.

Signature Algorithm: The algorithm used to create the signature.

Signature: The actual signature to verify that it came from the issuer.

Issuer: The entity that verified the information and issued the certificate.

Valid-From: The date the certificate is first valid from.

Valid-To: The expiration date.

Key-Usage: Purpose of the public key (e.g. encipherment, signature, certificate signing...).

Public Key: The public key.

Thumbprint Algorithm: The algorithm used to hash the public key.

Thumbprint: The hash itself, used as an abbreviated form of the public key.

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