| Event Id | 98 |
| Source | Microsoft-Windows-CertificationAuthority |
| Description | Active Directory Certificate Services encountered errors validating configured key recovery certificates. Requests to archive private keys will no longer be accepted |
| Event Information | According to Microsoft : Cause This event is logged Active Directory Certificate Services encountered errors validating configured key recovery certificates. Resolution Configure the correct number of key recovery agent certificates Ensure that the correct number of valid key recovery agent certificates are available to the certification authority (CA). The number of key recovery agent certificates that are needed is set on the Recovery Agents tab in the Certification Authority snap-in. To perform this procedure, you must have Manage CA permission, or you must have been delegated the appropriate authority. To identify specific problems with key recovery agent certificates: 1.On the computer hosting the CA, click Start, point to Administrative Tools, and click Certification Authority. 2.Right-click the certification authority (CA) name, and click Properties. 3.Click the Recovery Agents tab, and check whether the key recovery agent certificate whose index is listed in the event log has Expired or is Invalid. To check its validity, confirm its validity dates and that it contains the extended key usage (EKU) extension indicating that this certificate can be used for key recovery. 4.If a certificate has expired or is not valid, remove the invalid key recovery agent certificate and assign a new one. You may need to issue a new key recovery agent certificate before it can be registered with the CA. Verify To perform this procedure, you must have Manage CA permission, or you must have been delegated the appropriate authority. To confirm that key archival and recovery is working properly: 1.On the computer hosting the CA, click Start, point to Administrative Tools, and click Certification Authority. 2.In the console tree, right-click the name of the certification authority (CA), and then click Properties. 3.Click the Recovery Agents tab. 4.Confirm that all key recovery agent certificates are listed as Valid. 5.In the Certificate Templates container, confirm that an encryption certificate has the option Archive subject's encryption private key configured on the Request Handling tab. 6.Open the Certificates snap-in for a user account that has permissions to enroll for a certificate based on this certificate template. 7.In the console tree, right-click Personal, point to All Tasks, and click Request New Certificate to start the Certificate Enrollment wizard. 8.Enroll for a certificate based on the encryption template, and confirm that the enrollment completes successfully and no errors are reported. 9.When the enrollment is complete, open the Certification Authority snap-in. 10.In the console tree, click Issued Certificates. 11.Locate the entry for the certificate that was just issued, and add the Archived Key column to the snap-in display list. 12.Confirm that the word Yes appears in the Archived Key column for the certificate that was just issued. |
| Reference Links | Event ID 98 from Source Microsoft-Windows-CertificationAuthority |
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