AllegroGraph Enterprise Security and Management
Franz AllegroGraph v4 represents the first Semantic Technology Database with OLTP, ACID compliance and Enterprise Management functionality. AllegroGraph Enterprise Security and Management (ESM) provides the mission critical functionality that organizations need to support 24/7/365 operations. AllegroGraph has received a Certificate of Networthiness for the product to run on the Department of Defense .mil network.
This document gives and overview of security in AllegroGraph. See Security Implementation for implementation details.
AllegroGraph ESM includes the following:
- Transport Layer security to and from database clients.
- Management, Access Control and Security for the AllegroGraph database server and AllegroGraph Enterprise Subsystems; such as Backup, Restore, Point-in-Time Recovery, Warm Standby and Replication.
- Data Access Control v4
- Data Access Control v4.5 – Triple Level Security
Transport Layer Security
Access to an AllegroGraph database server can be obtained via AllegroGraph’s RESTful interface (for HTTP and HTTPS clients), through AllegroGraph’s built-in web interface – AGWebView, and through a local Lisp client application
All client network access to AllegroGraph occurs though the product’s HTTP and HTTPS RESTful interfaces. The AllegroGraph interface, and RESTful interfaces in general, are remarkable in that they are by definition client-server, stateless, cacheable and provide a uniform interface identifying system resources in the client request.
AllegroGraph clients can connect directly to the server via HTTP, sending and receiving clear text. AllegroGraph clients also have the ability to send and receive encrypted requests.
SSL and TLS
When an AllegroGraph session is established over Secure Sockets Layer (SSL), the server shares a public key with the client which is used to encrypt subsequent requests. AllegroGraph supports TLS versions 1.0, 1.1, and 1.2.
AllegroGraph utilizes FIPS 140-2 compliant encryption for data in transit. Reference http://csrc.nist.gov/groups/STM/cmvp/documents/fips140-2/FIPS1402IG.pdf.
X.509 Certificates
The server provides an X.509 certificate to the client during the SSL/TLS handshake when the connection is established. Therefore the client can check the contents of the certificate if desired.
Encryption At Rest
To enable data-at-rest encryption with AllegroGraph we recommend using a third party tool such as Linux LUKS disk encryption.
If running AllegroGraph using a cloud service provider, we recommend using the provider's disk encryption mechanism (such as EBS encryption on AWS). Google Cloud Services encrypts storage volumes by default.
Management Access Control
AGWebView provides a GUI management and data access interface to AllegroGraph, as we describe in Security Implementation. The web-browser based interface allows the system administrator to manage access control to individual repositories, maintain users and roles, and control the Warm Standby and Replication interfaces.
Configuration of Repositories and Catalogs
Repositories are effectively managed through AGWebView. Control over placement of the catalogs and server settings is managed during initial server configuration.
Management of JavaScript and Lisp Stored Procedures
Both JavaScript and Lisp stored procedures are supported. The user manages stored procedures through AGWebView.
User Management
The system administrator is given fine-grained control over creation and management of users, passwords and roles through the AGWebView interface.
There are several predefined user permissions, including Superuser, Start Sessions, Eval (stored procedures) and (control) Replication.
For each user and role, the administrator can manage these permissions and repository access. Access can be granted to specific repositorities in specific catalogs, all repositories in a catalog, or all repositories in the server.
Programmatic System Management
All the management functions of the product are exposed via HTTP, Java, Python, Lisp and others. Organizations can take advantage of AGWebView or provide their own custom interface to AllegoGraph security and management.
Summary:
Manage User Permissions and Access Rights
- Super User - Manages user accounts and all security.
- Eval User - Manages access to AllegroGraph stored procedure functionality.
- Session - Allows users to manage their own sessions.
- Read/Write - Defined per user for each database and catalog.
Administrative Functionality
- List Users
- Create Users
- Delete Users
- Change Password
- List User Roles
- Add Role to User
- Delete Role from User
- List User Permission Flags
- Assign Permission Flags
- Delete Permission Flags
- List User Database and Catalog Access
- Set User Database and Catalog Access
- List Users within specified Role
- Create New Role
- Delete Role
- Grant and Revoke Permissions for each Role
- Create and Delete Database
- Specify security filters for roles and for users
Triple Level Security
As RDF stores become more entrenched in enterprise applications, increased security and fine-grained data access control is required. To support this, AllegroGraph supports statement-level Security Filters, which are described in the Security Filters section of Security Implementation.
With Security Filters the system administrator is able to grant user access to the entire repository, or restrict access to a limited and filtered view of a repository.
Security Filters can be applied to individual repositories for all add/delete/query operations, per user and per role. You specify which values of the subject, predicate, object, or graph should be allowed or disallowed and then query responses are filtered appropriately, and attempts to add or delete filtered triples fail.
Key Security Filter Features:
- Apply Security Filters per user and/or role.
- Prevents data access to unauthorized users.
- Minimal administration.
- The user
viewsthe repository based on the applied Security Filter. - Allows extremely fine-grained and flexible access to data.