Search Guard() is an Elasticsearch plugin that offers encryption, 
authentication, and authorization. It builds on Search Guard SSL and provides
pluggable authentication and authorization modules in addition. 
Search Guard is fully compatible with Kibana, Logstash and Beats.

As an alternative to other security solutions for Elasticsearch,
Search Guard offers the following main features:

    TLS on transport- and REST-layer
    Fine-grained role- and index-based access control
    HTTP Basic Authentication
    LDAP / Active Directory
    Kerberos / SPNEGO
    JSON web token
    Document- and Field-level security
    Audit logging
    Kibana multi-tenancy
    REST management API
    Proxy support
    User impersonation

WWW: https://github.com/floragunncom/search-guard