This is the second in a series of posts where I interview XACML vendors. This time it’s Axiomatics’ turn. Their CTO Erik Rissanen is editor of the XACML 3.0 specification.
Why does the world need XACML? What benefits do your customers realize?
The world needs a standardized way to externalize authorization processing from the rest of the application logic – this is where the XACML standard comes in. Customers have different requirements for implementing externalized authorization and, therefore, can derive different benefits.
Here are some of the key benefits we have seen for customers:
- The ability to share sensitive data with customers, partners and supply chain members
- Implement fine grained authorization at every level of the application – presentation, application, middleware and data tiers
- Deploy applications with clearly audit-able access control
- Build and deploy applications and services faster than the competition
- Move workloads more easily to the most efficient compute, storage or data capacity
- Protect access to applications and resources regardless of where they are hosted
- Implement access control consistently across all layers of an application as well as across application environments deployed on different platforms
- Exploit dynamic access controls that are much more flexible than roles
What products do you have in the XACML space?
Axiomatics has three core products today:
- The Axiomatics Policy Server which is a modular XACML-driven authorization server. It fully implements XACML 2.0 and XACML 3.0 and respects the XACML architecture.
- The Axiomatics Policy Auditor which is a web-based product administrators and business users alike can use to analyze XACML policies to identify security gaps or create a list of entitlements. Generally, the auditor helps answer the question “How can an access be granted?”
- The Axiomatics Reverse Query takes on a novel approach to authorization. Where one typically creates binary requests (Can Alice do this?) and the Axiomatics Policy Server would reply with a Yes or No, the Axiomatics Reverse Query helps invert the process to tackle the list question. We have noticed that our customers sometimes want to know the list of users that have access to an application or the list of resources a given user can access. This is what we call the list question or reverse querying.
The Axiomatics Reverse Query is an SDK that requires integration with a given application. With this in mind, Axiomatics engineering have developed extra glue / integration layers to plug into target environments and products. For instance, Axiomatics will release shortly the Axiomatics Reverse Query for Oracle Virtual Private Database. Axiomatics also uses the SDK to drive authorization inside Windows Server 2012. And there are many more integration options we have yet to explore.
In addition, Axiomatics has now released a free tool and a new language called ALFA, the Axiomatics Language for Authorization. ALFA is a lightweight version of XACML with shorthand notations. It borrows much of its syntax from programming languages developers are most familiar with e.g. Java and C#. The tool is a free plugin for the Eclipse IDE which lets developers author ALFA using the usual Eclipse features such as syntax checking and auto-complete. The plugin eventually generates XACML 3.0 conformant policies on the fly from the ALFA the developers write. Axiomatics published a video on its YouTube channel showing how to use the tool.
What versions of the spec do you support? What optional parts? What profiles?
Axiomatics fully supports XACML 2.0 and XACML 3.0 including all optional profiles as specified in our attestation email.
What sets your product(s) apart from the competition?
Axiomatics has historically been what we could call a pure play XACML vendor. This reflects our dedication to the standard and the fact that Axiomatics implements the XACML core and all profiles – no other vendor has adopted such a comprehensive strategy. Furthermore, Axiomatics only uses the XACML policy language, rather than attempting to convert between XACML and one or more proprietary, legacy policy language formats. The comprehensiveness of the XACML policy language gives customers the most flexibility – as well as interoperability – across a multitude of applications and usage scenarios.
This also made Axiomatics a very generic solution for all things fine-grained authorization. This means the Axiomatics solution can be applied to any type of application, in particular .NET or J2SE/J2EE applications but also increasingly COTS such as SharePoint and databases such as Oracle VPD.
Axiomatics also leverages the key benefits of the XACML architecture to provide a very modular set of products. This means our core engine can be plugged into a various set of frameworks extremely easily: the authorization engine can be embedded or exposed as a web service (SOAP, REST, Thrift…). It also means our products scale extremely well and allow for a single point of management with literally hundreds of decision points and as many enforcement points. This makes our product the fastest, most elegant approach to enterprise authorization.
Axiomatics’ auditing capablities are quite unique too: with the Policy Auditor, it is possible to know what could possibly happen, rather a simple audit of what did actually happen. This means it is easier than ever to produce reports that will keep auditors satisfied the enterprise is correctly protected.
Lastly, Axiomatics has over 6 years experience in the area and is always listening to its customers. As a result, new products have been designed to better address customer needs. One such example is our Axiomatics Reverse Query which reverses the authorization process to be able to tackle a new series of authorization requirements our customers in the financial sector had. Instead of getting yes/no answers, these customers wanted a list of resources a user can access (e.g. a list of bank accounts) or a list of employees who can view a given piece of information. By actively listening to our customers we are able to deliver new innovative products that best match their needs.
What customers use your product(s)? What is your biggest deployment?
Axiomatics has several Fortune 50 customers. Some of the world’s largest banks and enterprises are Axiomatics customers. Axiomatics customers are based in the US and Europe mainly. One famous customer where Axiomatics is used intensively is PayPal. It is probably Axiomatics’ current biggest deployment in terms of transactions.
A US-based bank has also deployed Axiomatics products across three continents in order to protect trading applications.
What programming languages do you support? Will you support the upcoming REST and JSON profiles?
Axiomatics supports Java and C#. Axiomatics has been used in customer deployments with other languages such as Python.
Axiomatics is active in defining the new REST profile of the XACML TC and will try to align with it as much as possible. Axiomatics is also leading the design of a JSON-based PEP-PDP interaction. JSON as well as Thrift are likely to be the next communication protocols supported.
Do you support OpenAz? Spring Security? Other open source efforts?
Axiomatics does not currently support OpenAZ but has been watching the specification in order to eventually take part. Axiomatics already supports Spring Security. In addition, there is a new open source initiative aimed at defining a standard PEP API which Axiomatics and other vendors are taking part in.
How easy is it to write a PEP for your product(s)? And a PIP? How long does an implementation of your product(s) usually take?
Should customers decide to write a custom PEP rather than use an off-the-shelf PEP, they can use a Java or C# SDK to quickly write PEPs. Axiomatics has published a video explaining how to write a PEP in 5 minutes and 20 lines of code.
An implementation of our product can take from 1 week to 3 months or more depending on the customer requirements, the complexity of the desired architecture, and the number of integration points.
Can your product(s) be embedded (i.e. run in-process)?
The Axiomatics PDP can be embedded. Customers sometimes choose this approach to achieve even greater levels of performance.
What optimizations have you made? Can you share performance numbers?
There are many factors such as number of policies, complexity of policies, number of PIP look-ups and others that have an effect on performance. One of our customers shared the result of their internal product evaluation where they reached 30.000 requests per second.
The Axiomatics PDP is also used to secure transactions for several hundred million users and protect the medical records of all 9 million Swedish citizens.
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