Tag: Lightweight Directory Access Protocol

1. Create User Certificates

By default, only a user having “Admin” privileges can create User Certificates for users in an eDirectory Tree. So perform following steps as “Admin”.

1.1 Login as Admin using Novell Client from the administration workstation

1.2 Launch ConsoleOne, preferably one from a NetWare server with latest Support Pack (Sys:publicmgmtConsoleOne1.2binConsoleOne.exe)

1.3 Create couple of test user in the desired eDirectory container (Create “Michael Owen” and “John Terry”)

1.4 Create a GroupWise Mailbox for both users and set a GroupWise password for both of them (Use “novell” as password)

1.5 Take properties of the user object “Michael” in NDS View and select Security|Certificates page

1.6 Click on the button Create and create the User Certificate with following parameters as you proceed with the wizard

• Certificate name: First Name of the User
• Creation Method: Custom
• Certificate Authority: Organizational Certificate Authority
• Key Size: 2048 Bits
• Key Type: Custom (Once “Custom” is selected enable all Check boxes which get highlighted)
  
• E-Mail Address: Specify the E-Mail Address of the user (This field will be automatically filled for a user with mailbox)
  

1.7 Select the Certificate, click on “Validate” and make sure that Certificate is “Valid”

1.8 Repeat steps 1.5 to 1.7 and create a User certificate for John.

2. Export User Certificates

Even though a user with “Admin” privileges can create User Certificates for regular users, only the corresponding user can export the Certificate with Private Key. So login as test users using iManager from workstations and export User Certificate with Private Key as follows.

2.1 Launch iManager and login as Michael

2.2 Expand the Role “Directory Administration” and select the Task “Modify Object”

2.3 Browse and select the user Object “Michael” and click on “OK”

2.4 Click on “Certificates” tab, select the certificate and export the certificate along with Private Key

2.5 Save the file as “Michael.pfx” into the workstation

2.6 Repeat steps 2.1 to 2.5 by logging in as John and export the certificate for John as “John.pfx



3. Setup an eDirectory LDAP server

Select an eDirectory server with Master or Read/Write replicas of all main partition as an LDAP Server. It’s recommended that the LDAP server should have a replica of Tree [Root] partition for best performance. GroupWise Client by default use query the LDAP server on port 389 (Default non-secure LDAP port). Make sure that LDAP is listening on port 389 as follows

3.1 From Administration workstation, login as Admin using Novell Client and launch ConsoleOne (Launch ConsoleOne from the server to have all necessary snap-ins for LDAP)

3.2 Browse to the server context of the desired LDAP server

3.3 Take properties of the LDAP Group – <Server_Name> Object for the desired LDAP server

3.4 On the General | LDAP Group General tab, disable the Check Box “Require TLS for Simple binds with password”, apply the change and close the properties page.

3.5 Open a server console and reload NLDAP as follows

A. On NetWare

unload nldap

nldap

B. On Linux

nldap -u

nldap -l

3.6 Ensure that LDAP is listening port 389 using Novell Import Convert Export (ICE) utility or other commonly used LDAP tool like LDAP Browser 2.8.2

4. Add the eDirectory LDAP Server in Novell Address Book of GroupWise Client

From here onwards use separate workstations for Michael and John. Wherever it is mentioned to login as John or Michael using Novell Client or GroupWise Client, use the workstation for the user. Using separate workstations helps to differentiate configuration needed for encryption and signing.

4.1 Login as Michael using Novell Client

4.2 Login as Michael using GroupWise Client

4.3 Click on Address Book | Novell LDAP Address Book | Directories

4.4 Click on Add and add an entry called “eDirectory” by providing details of the desired LDAP Server as follows,

• Server Address: IP Address of the LDAP server
• Port: 389 (Default non-secure LDAP port)
• Server Requires log in: Leave unchecked

4.5 Select “eDirectory”, click on the button “Set as Default” and click on “Close”

4.6 Check you are able to query user “John” by typing John’s E-Mail Address in the field “E-Mail Address” and by clicking the button “Retrieve”

4.7 If successful, close the Address Book

Don’t define the LDAP server in the GroupWise Client on John’s workstation at this point.

5. Configure GroupWise Client to search eDirectory for encryption Certificate

GroupWise Client of the sender uses the Public Key of the recipientuser to encrypt the E-Mail. Configure the GroupWise Client of Michael(Sender) to search the eDirectory LDAP server for the Public Key of John as follows.

5.1 Login as Michael using GroupWise Client

5.2 Click on Tools | Options | Send | Security | Advanced Options

5.3 Enable the Check box “Search recipient encryption certificates in the default LDAP directory defined in LDAP Address Book”

5.4 Click on “OK” and close the “Options” Page

6. Install User Certificate with Private Key in GroupWise Client

Perform following steps as John (Not as Michael). Copy over the User Certificate for John to John’s workstation.

6.1 Copy the User Certificate for John, John.Pfx, to John’s workstation

6.2 Login as John using GroupWise Client

6.3 Click on Tools | Options | Certificates

6.4 Click on Import and install the User Certificate for John, ignoring the “Security Warning”

• Certificate file to import: Point to John.Pfx
• Enter password: The password specified while exported the certificate with Private Key
• Security Warning: Ignore the message (Wizard throws out a Security Warning as the certificate is issued by Organizational Certificate Authority (CA) which is not trusted as VeriSign, a popular Public CA)
  

6.5 Select the Certificate and click on “Set as Default”

6.6 Click on “OK” and close the “Options” page.

Don’t import the user certificate for Michael into the GroupWise Client on Michael’s workstation at this point.

7. Test Encrypted E-Mail

GroupWise Client of Michael will be able to find out the Public Key for John using configurations done as per Steps 4 and 5.

7.1 Send Encrypted E-Mail

7.1.1 Login as Michael using GroupWise Client

7.1.2 Open a “New Mail” and select John using Address Book (Not LDAP Address Book)

7.1.3 On the “Mail To:” window click on the tab Send Options | Security and enable the Check box “Enable for recipients”

7.1.4 Type a few words / a sentence on the Message Body and /or attach a file and send the E-Mail

7.1.5 Switch to the folder “Sent Items” and make sure that you can differentiate the encrypted E-Mail using a “Lock” icon

7.2 Open and verify the Encrypted E-Mail

GroupWise Client of recipient uses the Private Key of the recipient to decrypt incoming encrypted E-Mails. John’s GroupWise Client will be able to open the encrypted E-Mail sentby Michael as the certificate with Private Key for John, is alreadyimported as per step 6.

7.2.1 Login as John using GroupWise Client

7.2.2 Open the encrypted E-Mail Michael sent and make sure that you are able to see contents of the E-Mail, sentence on the Message Body or attached file.

7.2.3 Close the encrypted E-Mail

Trying to send an encrypted reply E-Mail as John will fail as an entry for the eDirectory LDAP server is not yet added in to the Novell LDAP Address Book of John’s GroupWise Client. Similarly, Michael will not be able to view the message body contents or attached file of an encrypted E-Mail from John, until the user certificate with Private Key (Michael.Pfx) is imported into Michael’s GroupWise Client.

8.Test Signed E-Mail

GroupWise client uses the Private Key of the sender to send a Signed E-Mail. GroupWise client of the recipient searches the LDAP Server defined in the LDAP Address Book for the Public Key of the sender to “Validate” the Signature on the incoming Signed E-Mail. Based on configuration done so far, attempt to send Signed E-Mail as Michael will fail as the Private Key for Michael is not yet imported into his GroupWise Client. Try to send a Signed E-Mail as John as the Private Key for John is already imported into GroupWise Client. Proceed as follows.

8.1 Send a Signed E-Mail

8.1.1 Login as John using GroupWise Client

8.1.2 Open a “New Mail” and select Michael using Address Book (Not LDAP Address Book)

8.1.3 On the “Mail To:” window click on the tab Send Options | Security and enable the Check box “Sign Digitally”

8.1.4 Type a few words/sentence on the Message Body and/or attach a file and send the E-Mail

8.1.5 Switch to the folder “Send Items” and make sure that you can differentiate the Signed E-Mail

8.2 Open and Verify the Signed E-Mail

8.2.1 Login as Michael using GroupWise Client

8.2.2 Open the Signed E-Mail John sent and make sure that contents on the message body is visible.

8.2.3 Close the Signed E-Mail

Michael will not be able to send a Signed E-Mail to John as the User Certificate with Private Key for Michael is not yet imported into the GroupWise Client for Michael. Similarly, John will not be able to “Validate” the Signature on Signed E-Mails from Michael, until the eDirectory LDAP server is added to the Novell LDAP Address Book of John’s GroupWise Client.