Arranging an Open Key Framework.


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PC authentications. Require IPSec-particular authentications or multipurpose Computer ... Restoring the CA declaration utilizing the Certification Authority console ...
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Slide 1

Arranging a Public Key Infrastructure Planning a Certification Authority Hierarchy Managing Certification Authorities Using Certificates for Authentication

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Planning a Certification Authority Hierarchy Public Key Infrastructure (PKI) Deployment Steps Reviewing PKI parts Determining whether to utilize a private or open Certification Authority (CA) Determining the CA structure Planning the extent of a CA Planning disconnected CAs Designing the Certification Authority progressive system Planning debacle recuperation of CAs

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PKI Deployment Steps Determine whether an open CA or a private CA meets the business needs. Plan a CA progression that permits customers to perceive and check all issued endorsements. Figure out if to send an Enterprise or Standalone scope for private CAs. Arrangement security for the root CA. Build up a fiasco recuperation arrangement for the potential disappointment of a CA.

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Reviewing PKI Components

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Public Key-Enabled Applications and Services

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Choosing a Public CA

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Choosing a Private CA

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Making the Decision: Implementing Public and Private CAs Use an open CA when An application requires check from a trusted outsider The assets important to send an inside PKI are not accessible Time is constrained An undertaking requires declaration interoperability between associations An application requires risk insurance

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Making the Decision: Implementing Public and Private CAs (Cont.) Use a private CA when The association needs to keep up administration control of all customer related testaments The endorsements will be utilized just for inner tasks, applications, and administrations The expenses connected with issuing authentications must be minimized An association has the skill to oversee and keep up Certificate Services

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Applying the Decision: Implementing Public and Private CAs for Blue Yonder Airlines Public CAs The internet booking Web server must have an open CA-issued endorsement. Guarantees client trust in the security of delicate information. Design the Web server to require 128-piece encryption. Private CAs Make it conceivable to issue brilliant cards to clients while keeping up the capacity to deny endorsements rapidly Provide interior workers with savvy card logon and Extensible Authentication Protocol (EAP) verification for remote access

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A Rooted CA Hierarchy

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A Cross-Certification CA Hierarchy

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Making the Decision: Designing Certificate Hierarchies Provide most extreme security for the root CA. Limit trusted CAs to an association\'s CAs. Give interoperability between associations. Limit which CAs will be trusted from an accomplice association.

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Applying the Decision: Designing Certificate Hierarchies for Blue Yonder Airlines Blue Yonder Airlines requires just a pull CA progressive system for the inner system and for Web website clients. This considers expanded security by expelling the root CA from the system. Blue Yonder Airlines will procure an endorsement for their Web server from an open CA, for example, Entrust. There is no business motivation to make cross-confirmation between the organization\'s CA chain of importance and the Entrust CA progressive system. The Entrust testament will be trusted. The root authentication from Entrust CA will be incorporated into the Trusted Root Certification Authorities compartment as a matter of course.

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Planning the Scope of a CA

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Enterprise CA Considerations Certificate formats Integration with Microsoft Windows 2000 security Storage of information in Active Directory Applications and administrations that require an Enterprise CA Reduction in administration for declaration issuance

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Deploying a Standalone CA Standalone CAs can be individuals from a space or standalone servers in a workgroup. All information is put away in a neighborhood database. Standalone CAs don\'t utilize declaration layouts.

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Considerations for Deploying a Standalone CA If a disconnected root CA is built up If joining of Windows 2000 Certificate Services with an Exchange 5.5 Key Management Server (KMS) is attractive If the CA is required to keep running in the Demilitarized Zone (DMZ)

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Making the Decision: Implementing Enterprise CAs Deploy Certificate Services for an inside organization where the clients will give their system qualifications to validation. Send Windows 2000 administrations that require testament formats gave just by Enterprise CAs. Influence the standard Windows 2000 security model to figure out who can get particular declaration layouts.

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Making the Decision: Implementing Standalone CAs Deploy disconnected CAs that must work without speaking with whatever is left of the system. Arrange the Exchange 5.5 KMS to utilize x.509 v3 authentications as opposed to the default x.509 v1 endorsements. Place the CA in an area where it can\'t associate with Active Directory.

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Applying the Decision: Deploying Enterprise CAs or Standalone CAs at Blue Yonder Airlines Blue Yonder Airlines requires the issuance of shrewd cards for both clients and interior client accounts . Requires sending of an Enterprise CA. Just an Enterprise CA bolsters declarations for keen cards Each CA progressive system ought to have a disconnected root CA to expand the security of the CA pecking order. Requires arrangement of a Standalone scope for the CA.

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Offline CA Considerations Storage area of the disconnected CA Use of a solid Cryptographic Service Provider (CSP) Publication of the Certificate Revocation List (CRL) Publication of the Authority Information Access (AIA) Definition of authentication restoration period

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Configuring an Offline Root CA The essential setup is performed in the Capolicy.inf record. Place the Capolicy.inf document in the Systemroot organizer before introducing Windows 2000 Certificate Services.

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Capolicy.inf Configuration File

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Capolicy.inf File for Nonroot CAs Only utilize a Capolicy.inf design record for a nonroot CA to characterize a Certificate Practice Statement (CPS) for an issuing CA. The Capolicy.inf content record is the best way to enter data into a CPS for Windows 2000 Certificate Services. A nonroot CA forms just the [CAPolicy] and [ PolicyName ] segments of the Capolicy.inf design record. Every single other area are disregarded.

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Configuring the CDPs Configure Certification Distribution Points (CDPs) for the CRL and Authority Information Access (AIA) connected with the CA. Arrange CDPs in the properties of the Certification Authority. Characterize the X.509 expansions for the CA\'s strategy module. The URLs characterized for the CRL and AIA circulation focuses are incorporated into the properties of any recently issued authentication by the CA.

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Making the Decision: Securing Offline Root CAs Allow the CA to be expelled from the system for drawn out stretches of time. Give the most grounded type of encryption at the disconnected root CA. Make the CRL and AIA accessible to network clients. Characterize a CPS. Give the most security to your CA chain of importance.

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Applying the Decision: Securing Offline Root CAs for Blue Yonder Airlines A Standalone CA must be utilized for the disconnected root CA. A second layer of subordinate CAs can likewise be evacuated. A Capolicy.inf setup document must be designed to issue a CPS that characterizes use strategy for all clients with carrier keen cards. Properties for the CA must be set before expelling the CA from the system . CRL production interim CRL and AIA conveyance focuses The default lifetime for issued endorsements

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Certification Authority Hierarchy: Structure Based on Usage

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Certification Authority Hierarchy: Structure Based on Administration

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Certification Authority Hierarchy: Structure Based on Location

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Required CA Levels Create a CA pecking order that is three to four levels profound. Pecking orders with less than three levels are more powerless. With two levels, if the root level is traded off, all endorsements are likewise bargained. Chains of importance with more than four levels present superfluous many-sided quality .

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Making the Decision: Choosing CA Hierarchy Structures Usage structure Administrative structure Location structure

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Applying the Decision: Implementing CA Hierarchy Structures for Blue Yonder Airlines

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Preventing CA Failure Implement equipment answers for adaptation to non-critical failure. Move down the Certificate Services information frequently. Move down a disconnected CA server with circle imaging programming .

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Making the Decision: Disaster Recovery Plan for CAs Prevent loss of information in the Certificate Services database. Guarantee that a modified CA is still substantial for all issued testaments. Permit a CA to be recuperated. Guarantee recoverability.

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Applying the Decision: Disaster Recovery Plan for CAs at Blue Yonder Airlines Include a reinforcement and reestablish procedure for all CAs. Plan customary reinforcements that incorporate the framework state reinforcements. Send out the current private and open keys connected with the CA\'s testament to records and incorporate those documents in the customary reinforcement set. Make a picture of the root CA for the order on a CD.

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Managing Certification Authorities Planning testament issuance Planning endorsement disavowal Planning authentication restoration

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Planning Certificate Issuance Certificates must be issued to the essential clients, PCs, and system gadgets. Issuing testaments includes either Configuring authorizations to set up which security principals have Enroll consents for particular layouts Appointing an endorsement head who will audit every declaration demand and issue or deny the solicitation

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Designing Automatic Issuance Define which authentication formats will be asked for by PC accounts inside the site, area, or OU where the Group Policy item is characterized. Assi

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