PKI
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PKI PowerPoint PPT Presentation


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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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Pki

PKI


Public key infrastructure

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)


Pki

PKI

ValidationAuthority

CertificateAuthority

RegistrationAuthority

From Wikipedia, the free encyclopedia


Content of a certificate

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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