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PKI

PKI. Public Key Infrastructure. A  public-key infrastructure  ( PKI ) is a set of hardware, software, people, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates.

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PKI

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  1. PKI

  2. Public Key Infrastructure • A public-key infrastructure (PKI) is a set of hardware, software, people, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates. • Certificates bind public keys with respective user identities (might be a pseudonym) => ensuresnon-repudiation • Free SSL certificatesonverisign.com (30 days)

  3. PKI ValidationAuthority CertificateAuthority RegistrationAuthority From Wikipedia, the free encyclopedia

  4. Content of a certificate • 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 certificate. • Thumbprint: The hash itself, used as an abbreviated form of the public key certificate.

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