Google Inc.

Widevine Technologies, Inc.

Accessline Communications Corporation

Oscar Veniaminovich Zhuk

Glenn A Morten

Edward Charles Hiar

James E Veres

Jeffrey Lee Tinker

Jeremy Mark Knight

Frederick Allen Epler

Vince M Rohr

Andre Jacobs

Patrick Allen Stensberg

A method, apparatus, and system are directed towards employing a chain of permission keys obtained during playing of advertisements within content to enable continued playing of the content. A sequence of encoded permission keys are generated with each encoded permission key, except a last permission key, incorporating a scrambling key useable to decode a next encoded permission key within the sequence of encoded permission keys that enables playing of a next portion of the content. If playing of any advertisement within the content is avoided, then access to an associated scrambling key useable to decode a next permission key is prevented, which in turn inhibits playing of a next portion of the content. In another embodiment, a heartbeat analysis may also be performed to monitor if skipping of an advertisement is being attempted, and if so, playing of the content is prevented.

Preventing unauthorized modification or skipping of viewing of advertisements within content

A system, apparatus, and method are directed to providing digital copy protection of media using a subscriber/publisher architecture. In one embodiment, a publisher employs various dynamic and/or static tamper detection, including, filter graph change detectors, ICE detectors, screen scraping detectors, debugger detectors, pattern recognizers, or the like. When a tampering event is detected by one or more of the publishers, the tamper event may be published for access by a subscriber. Published tamper events may be pushed to or pulled by the subscribers. When one or more subscribers receive the tamper event, the subscriber(s) may perform one or more tamper response actions according to various business rules, and/or other core rules.

Tamper prevention and detection for video provided over a network to a client

A method and system are directed to differentiating between normal characteristics and abnormal characteristics within a software process, such that tampering of the software process may be identified programmatically. The identification of behavior that may be defined as normal may vary. Such behavior may include a sequence of selected system level calls that may access resources considered relevant, and the like. Data on the selected behavior is gathered, and when a sufficient amount of abnormal behavior has been detected, a signal may be provided such that an action may be performed. Samples of the gathered data are assigned a unique value. Statistical information is determined from the collected behavior, including trend data. Such trend data is compared to trends identified as normal for the software process, and a determination is made whether the sampled behavior is non-normal.

Method and system for real-time tamper evidence gathering for software

Rather than employing simple static personal identification numbers (PINs) that are susceptible to hacking, the disclosed security system provides multiple levels of security that may be selected by a user, based on his or her particular level of sensitivity at any given time or with respect to any given data. One level employs an algorithm that changes values, where the algorithm is known by the user. For example, the algorithm may be a series of digits based on the following: hour of day, day of week, quarter of the year, a.m. or p.m., day of the month, and month of the year. If the user knows the order of such, the user can readily generate the appropriate numeric code corresponding to the current time, and since the time continually changes, the code necessarily changes likewise. Another level sends a random part to a user, such as over their pager or phone, which they append to some user-defined, fixed portion of their PIN, or used in addition to their PIN. Another level or method requires the user to interact with a series of predetermined questions that each require a numeric response. The order of the questions would be scrambled each day, or periodically, to help change the user's response to improve security and employ questions that typically only the user would know. Another level of security employs voice fingerprinting or voice pattern recognition. Yet another level employs a N by M matrix of random numbers, from which a user selects numbers from predetermined positions to generate a current security code. Various levels of security may be performed on the server, and are based on user's selections, thus eliminating the need for special hardware.

Dynamic security system and method, such as for use in a telecommunications system

Growing community of inventors

Bellevue, WA, United States of America

Oscar Veniaminovich Zhuk