Using XML Digital Signatures for Application Licensing. Introduction At some point in most developers' lives, application licensing becomes a problem. Many solutions exist but are often expensive and difficult to implement. Few offer seamless integration with an existing code base. In such a case, writing an in-house licensing mechanism may be desired. One of the biggest challenges of any licensing mechanism is to create a scheme that can't be hacked by the user. Such a solution does exist: XML Digital Signatures.
This article will explain the basic premise public-key cryptography and how it relates to XML Digital Signatures, detail the creation of a key pair, give examples for signing and verifying an XML document, and discuss different implementations to provide reliable application licensing. Note: this is not a full solution that you can simply add to your application, but a tutorial about how to sign XML using XML Digital Signatures. Cryptography To put it simply, cryptography is merely the means of hiding text. XML Digital Signatures.
Licensing management. Spring Security Tutorial: REST with Basic Authentication. Configuring Spring Security for a RESTful Web Services – NetworkedAssets. Recently, I have spent some time searching for the solution of the following problem: how to secure a RESTful service with a Spring Security framework without using the login form? I haven’t found a satisfactory answer for my question. After a couple of hours I have implemented the solution successfully, I searched through all the tips and suggestions in tutorials and forums. I hope that this solution will be helpful to someone and will save much valuable time. So let’s get to work… Problem description We have a web application that uses Spring Security and we want to have a RESTful service that has access to components secured with Spring Security.
So we have a few clever requirements and restrictions: The UML sequence diagram below describes how the solution should work: Solution Note: The following solution requires Spring Security in version minimum 3.1. Let’s suppose that service is accessible by URL: . 1. 2. 3. 4. Summary. Security. 12. Session Management. HTTP session related functonality is handled by a combination of the SessionManagementFilter and the SessionAuthenticationStrategy interface, which the filter delegates to. Typical usage includes session-fixation protection attack prevention, detection of session timeouts and restrictions on how many sessions an authenticated user may have open concurrently. 12.1 SessionManagementFilter The SessionManagementFilter checks the contents of the SecurityContextRepository against the current contents of the SecurityContextHolder to determine whether a user has been authenticated during the current request, typically by a non-interactive authentication mechanism, such as pre-authentication or remember-me [].
If the repository contains a security context, the filter does nothing. If it doesn't, and the thread-local SecurityContext contains a (non-anonymous) Authentication object, the filter assumes they have been authenticated by a previous filter in the stack. 12.2 SessionAuthenticationStrategy. Web development - License key solution in web application, what is the best approach? Reprise Software | Software License Management and Software Activation | RLM.
Per-seat license. A Per-seat license is a software license based on the number of individual users who have access to the software. For example, 50-user per-seat license would mean that up to 50 individually named users can access the program (compare named user licensing[1]). Per seat licensing is administered by providing user-level security to the directory containing the program. The alternative is a concurrent user license, based on the number of simultaneous users—regardless of which individuals they are—accessing the program. It typically deals with software running in the server where users connect via the network. For example, in a 50-user concurrent use license, after 50 users are logged on to the program, the 51st user is blocked. When any one of the first 50 logs off, the next person can log on. Per seat licensing often imposes restrictions on the users. Per-seat licensing is common for products used by specialised professionals in industrial settings.
What is the difference between core-based and u... |Tableau Support Community. Why Enterprise Clients Should Choose User-based Software Licensing Metrics. I am a technology attorney in Texas specializing in software license transactions and disputes with the major software publishers including Microsoft, Adobe, Oracle and IBM. I represent some of the world’s largest corporations in enterprise software license transactions. I have been involved in more than 600 software license disputes in the last 10 years and during that time I have discovered that device- based licensing leads to many compliance problems that could be easily avoided. I have been encouraging my clients to move toward user-based metrics for many years, and the market trends are moving in that direction. A device-based license is a type of software license that covers one or more devices regardless of how many users work on the device.
An operating system license is a classic example of a device-based license. For large enterprises adopting cloud based solutions, the shift to user-based licensing makes even more sense. About the author Rob Scott: Open source licensing notices in Web applications | Engelfriet | International Free and Open Source Software Law Review.
Open source licensing notices in Web applications Arnoud Engelfriet a DOI: 10.5033/ifosslr.v3i1.47 Abstract More and more applications are moving to the Web. Often, such applications present a combination of client- and server-side code. Keywords Law; information technology; Free and Open Source Software; Web applications Linking to open source licenses Open source software is freely available for anyone, including source code. However, open source software is not public domain. Including complete license texts in source code is of course sufficient, but for Javascript applications often impractical. The question then arises, is it sufficient to merely refer to a license that is published elsewhere, e.g. by linking to the license text on opensource.org?
Consequences of insufficient license notice When considering if a license notice is sufficient, one must also consider the consequences of an insufficient notice. Literature review The legal literature is surprisingly silent on this issue. jQuery. Five affordable apps for managing software licenses. If you're a busy IT admin, one of the last things you need to deal with is a missing software license. The simple loss of a string of characters can lead you into a tailspin of frustration — dealing with vendors to reclaim those licenses or worse, having to re-purchase the same software.
Instead of risking such a loss, why not employ an app to help you keep track of those licenses? Plenty of solutions are available to you. Some are geared specifically for that purpose; others are equally capable, though intended for a different purpose use. Note: This article is also available as an image gallery and a video hosted by TechRepublic columnist Tom Merritt. 1: MobiDB Database Designer Lite MobiDB Database Designer Lite (Figure A) is a personal data manager for the Android platform. Figure A Other features include a barcode scanner, filtering, multiple tables/relations, data entry via form, and support for 14 field types. 2: Snipe IT Figure B 3: Password Gorilla Figure C 4: License Distribution.
Application Licensing. Google Play offers a licensing service that lets you enforce licensing policies for applications that you publish on Google Play. With Google Play Licensing, your application can query Google Play at run time to obtain the licensing status for the current user, then allow or disallow further use as appropriate. Using the service, you can apply a flexible licensing policy on an application-by-application basis—each application can enforce licensing in the way most appropriate for it. If necessary, an application can apply custom constraints based on the licensing status obtained from Google Play. For example, an application can check the licensing status and then apply custom constraints that allow the user to run it unlicensed for a specific validity period.
An application can also restrict use of the application to a specific device, in addition to any other constraints. The licensing service is a secure means of controlling access to your applications. Licensing Overview. Anti-piracy software protection from Application Licensing for FREE. Selecting the Right License Strategy for Your Software – Gurock Quality Hub. IntroductionWhy You Should CareCommon Licensing SchemesFinding an Appropriate SchemeConclusion Introduction Choosing an appropriate licensing scheme is crucial for the success of a software product. When choosing the wrong licensing scheme, potential customers don’t even bother licensing your software, even if your product is superior to competitive solutions.
Furthermore, an appropriate licensing scheme can pave the way for interesting and successful marketing strategies. When we thought about the licensing scheme for SmartInspect, we naturally decided to license it per developer, as SmartInspect is a software development tool. Why You Should Care Although the decision of which licensing scheme to use is only one aspect of many when selling software, it can greatly influence other parts. As an example, depending on your licensing scheme, your software product might be either attractive or completely useless for an entire market. Common Licensing Schemes Finding an Appropriate Scheme Market. Web development - License key solution in web application, what is the best approach?