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212 Lotus Security Handbook ► Cross-certification, if done improperly, can reduce the level of security in the organization’s Domain. The most liberal cross-certification model provides for access to the organization’s servers by the people whose organization was cross-certified. This means that servers with confidential information could be accessible to these people. In light of that, it would be wise to set up server access restrictions to prevent people from the other organization from accessing the servers that contain information that is confidential in nature and meant for the people within the organization only. ► To keep things simple in the examples that follow, we have not factored in Server access lists and database ACLs and their ability to restrict access to servers and the databases on these servers. Cross-certification between two organizations Let’s assume a common organizational occurrence these days, in which two distinct organizations, Widget and Acme, decide to merge. Here, the organizations want the broadest form of cross-certification, in that they want all users and servers in both organizations to authenticate with one another. The following steps will accomplish this goal: 1. The Acme organization certifier (/Acme) obtains a cross-certificate for the Widget organization certifier (/Widget) and stores it in Acme's Domino Directory. 2. The Widget organization certifier (/Widget) obtains a cross-certificate for the Acme organization certifier (/Acme) and stores it in Widget's Domino Directory. As a result of this procedure, a special relationship (that is, “Acme and Widget trust each other”) is established. This is illustrated in Figure 6-10. In this cross-certification model, all users and servers in both organizations are now able to authenticate with each another.
Figure 6-10 Cross-certification between two organizations Cross-certification between two users In this case, the cross-certification can be for two users, two servers, or a user and a server. Let’s assume a scenario in which the Acme and Widget organizations want to replicate a database that contains information of common interest, but don’t want to have anything but these two servers communicating with each another, as per their security policy. Here, the organizations want the most restrictive form of cross-certification, in that they want a server in one organization to authenticate and replicate with a server in the other organization. The following steps will accomplish this: 1. The Acme server (Server/Acme) obtains a cross-certificate for the Widget server (Server/Widget) and stores it in the Acme server Personal Address Book; 2. The Widget server (Server/Widget) obtains a cross-certificate for the Acme server (Server/Acme) and stores it in the Widget server Personal Address Book. As a result of this procedure, a special relationship (that is, “the Acme server and the Widget server trust each other”) is established. This is illustrated in Figure 6-11 on page 214. In this cross-certification model, only these two servers trust each another and can replicate with each other. Chapter 6. Public key infrastructures 213
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478 Lotus Security Handbook databas
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486 Lotus Security Handbook NextExp
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518 Lotus Security Handbook Control
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530 Lotus Security Handbook For inf
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12.3 Domino Web Access (iNotes) 12.
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12.3.2 Encrypting a mail file on a
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* Notes SDK include files */ #inclu
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} /*--- * filter termination */ uns
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*/ if (authData->userName && authDa
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* *********************************
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Hostname="localhost.dotnsf.com" Por
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[Mon Jun 09 12:06:54 2003] 00000d54
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Other publications Online resources
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Certificate authorities Domino 260
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kFilterParsedRequest Event 299 kFil
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and iNotes 498 events 492 flowchart
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and WebSphere Portal 622 benefits 2
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Lotus Security Handbook Key securit
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