A first executable program on a computer system is enabled to exchange communications with a second executable program on the computer system by determining that the first executable program requests to exchange information with the second executable program, using the second executable program to challenge the first executable program for a digital certificate, and using the second executable program to exchange information with the first executable program when the digital certificate is verified.

A technique for enabling nominal flow of an executable file on a client is described. The executable file comprises executable code lacking at least one nominal constant, wherein only the nominal constant enables the nominal flow of the executable file and wherein a server has access to the at least one nominal constant. In a method aspect performed by the client, the method comprises retrieving hardware information of the client, wherein the hardware information is at least substantially unique. The method further comprises transmitting one of the hardware information and information derived therefrom to a server and, in turn, receiving at least one constant that has been transformed based on one of the hardware information and the information derived therefrom. The client then performs, using one of the hardware information and the information derived therefrom, an inverse transformation on the at least one transformed constant to recover the nominal constant. A server-side method aspect comprises receiving, from the client, one of the substantially unique hardware information and the information derived therefrom, transforming the at least one nominal constant using one of the hardware information and the information derived therefrom, and transmitting, to the client, the at least one transformed constant.

Device, computer program product and method for checking properties of resources, wherein a checking device for checking properties of resources of a web server includes a calculation unit for calculating an identifier identifying a particular resource using the particular resource, a detection unit for detecting a license requirement for the particular resource using the calculated identifier, and a determination unit for determining an existing license for the web server in the case of a license requirement detected for the particular resource using the calculated identifier, such that unauthorized posting of a particular resource to a web server can be easily detected and prevented.

Systems and methods for controlling access to wireless gaming devices and networks are provided. For example, access is controlled through one or more levels of security check, such as a hard security check instead of or in addition to a soft security check. In a hard security check, the user employs an apparatus such as a card or other physical token that can be used to access the wireless gaming device. Such an apparatus may communicate information that identifies the user to the device or may simply be used to produce a signal without which the device is locked to users.

At least one machine readable medium comprising a plurality of instructions that in response to being executed by a system cause the system to send a unique identifier to a license server, establish a secure channel based on the unique identifier, request a license for activating an appliance from a license server over the secure channel, receive license data from the license server over the secure channel; determine whether the license is valid, and activate the appliance in response to a determination that the license data is valid.

The disclosed subject matter relates to systems, methods, and media for media session concurrency management with recurring license renewals. More particularly, the disclosed subject matter relates to using recurring license renewals for concurrent playback detection and concurrency limit enforcement for video delivery services and managing server resources for handling such recurring license renewals.

Various aspects of the subject technology relate to systems, methods, and machine-readable media for geographically local license sharing. The method includes transmitting, from a media server, a shared secret to a licensed client, the licensed client broadcasting a wireless signal comprising a unique identifier associated with the licensed client. The method also includes receiving, at the media server, an access token and the unique identifier of the licensed client from an unlicensed client, the access token and the unique identifier received by the unlicensed client from the licensed client based on a proximity of the unlicensed client to the licensed client. The method also includes validating, by the media server, the access token based on the unique identifier and the shared secret with the licensed client. The method also includes enabling the unlicensed client to access media content of the media server upon validation of the access token.

A facility for retrieving content. The facility invokes an API, as part of the invocation passing to the API: (1) information identifying one or more units of content to return; and (2) an indication that an entity on behalf of which the invocation is performed attests that the entity is compliant with a license that applies to the identified units of content. The facility receives a response to the API invocation that contains the identified units of content.

An example embodiment may involve communicating with a server to separately access first and second records of sessions between the server and computing devices of a network, the first record including a first set of fields not present in the second record and the second record includes a second set of fields not present in the first record; identifying a common field present the first and second records; correlating information across the first and second records using the common field; using a set of license misuse criteria to identify, from the correlated information, (i) a set of the sessions that meets the set of criteria and (ii) a network address of a target device involved in the set of sessions; identifying the target device using the network address; and storing an indication identifying the target device as a potential source of misuse of licensed software executable on the server.

Various aspects of the subject technology relate to systems, methods, and machine-readable media for geographically local license sharing. The method includes transmitting, from a media server, a shared secret to a licensed client, the licensed client broadcasting a wireless signal comprising a unique identifier associated with the licensed client. The method also includes receiving, at the media server, an access token and the unique identifier of the licensed client from an unlicensed client, the access token and the unique identifier received by the unlicensed client from the licensed client based on a proximity of the unlicensed client to the licensed client. The method also includes validating, by the media server, the access token based on the unique identifier and the shared secret with the licensed client. The method also includes enabling the unlicensed client to access media content of the media server upon validation of the access token.