Trying to log into CA API Developer Portal 3.x with LDAP account may see this error:
DEBUG (:) - [PluginManager general] -- PluginManager.executeAction: method=checkConnection
com.l7tech.ldap.RequestUtil processRequest
SEVERE: Received fatal alert: handshake_failure
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
Release : 3.5
Component : API Developer Portal
This issue can be caused by incorrect Cipher Selections on Listen Ports that the LDAP Certificate is expecting
Check the Gateway Policy Manager Listen Port Properties Cipher selections to ensure that relevant ones are selected for your environment on the Under SSL/TLS Tab
https://techdocs.broadcom.com/us/en/ca-enterprise-software/layer7-api-management/api-gateway/9-4/security-configuration-in-policy-manager/tasks-menu-security-options/manage-listen-ports/listen-port-properties.html