JSI Tip 9009. LDAP signing changes for Active Directory administrative tools in Windows 2000 Server Service Pack 4?

Microsoft Knowledge Base Article 811422 contains the following introduction:

Active Directory directory service administrative tools sign and encrypt all Lightweight Directory Access Protocol (LDAP) traffic. Signing LDAP traffic guarantees that the packaged data comes from a known source and that it has not been tampered with. This article describes the signing and sealing support that is added to Microsoft Windows 2000 Active Directory administrative tools after you install Windows 2000 Service Pack 4 (SP4).