Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.

A display device (100) including at least: an array of display blocks, each display block comprising luminous elements (118) and a driving circuit (122) for the luminous elements; an array of control circuits (114) associated with the display blocks; a video card receiving an encrypted digital signal to be displayed and sending the encrypted digital data to be displayed to the control circuits; and wherein each control circuit includes: a first memory circuit (116) receiving and storing the encrypted digital data; a second memory circuit (124) storing a decryption key; a decryption circuit (136) decrypting the encrypted digital data using the decryption key.

Aspects of the subject disclosure may include, for example, a processing system that performs operations including collecting encrypted network traffic flow data from user interaction with an application, deriving a first set of traffic feature vectors from the encrypted network traffic flow data collected, training a machine learning algorithm on the first set of traffic feature vectors to classify each traffic feature vector in the first set of traffic feature vectors as associated with a type of the application or not associated with the type of the application, and classifying whether an encrypted network traffic flow as the type of the application by applying the machine learning algorithm to a traffic feature vector of the encrypted network traffic flow. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, a processing system that performs operations including collecting encrypted network traffic flow data from user interaction with an application, deriving a first set of traffic feature vectors from the encrypted network traffic flow data collected, training a machine learning algorithm on the first set of traffic feature vectors to classify each traffic feature vector in the first set of traffic feature vectors as associated with a type of the application or not associated with the type of the application, and classifying whether an encrypted network traffic flow as the type of the application by applying the machine learning algorithm to a traffic feature vector of the encrypted network traffic flow. Other embodiments are disclosed.

A protected graphics module can send its output to a display engine securely. Secure communications with the display can provide a level of confidentiality of content generated by protected graphics modules against software and hardware attacks.

A protected graphics module can send its output to a display engine securely. Secure communications with the display can provide a level of confidentiality of content generated by protected graphics modules against software and hardware attacks.

An embodiment of the invention provides a method for a secure connected digital media platform where a request is received to create a secure partition for accessing a content provider in a digital media device. A security code is received from the content provider. A hypervisor is invoked at the digital media device, where at least part of the hypervisor is comprised of a hardware circuit. The hypervisor compares the received security code with a key value that is burned into a memory unit at the hardware circuit to determine if the security code is from an authorized content provider. If the content provider is determined to be authorized, a secure partition is created at the digital media device. The creation of the secure partition includes creating a memory partition that corresponds to the secure partition in a non-volatile memory at the digital media device.

An embodiment of the invention provides a method for a secure connected digital media platform where a request is received to create a secure partition for accessing a content provider in a digital media device. A security code is received from the content provider. A hypervisor is invoked at the digital media device, where at least part of the hypervisor is comprised of a hardware circuit. The hypervisor compares the received security code with a key value that is burned into a memory unit at the hardware circuit to determine if the security code is from an authorized content provider. If the content provider is determined to be authorized, a secure partition is created at the digital media device. The creation of the secure partition includes creating a memory partition that corresponds to the secure partition in a non-volatile memory at the digital media device.

Disclosed herein are a method and device for transmitting digital content. A selection of at least one device authorized to receive digital content is detected. It is identified whether each selected device contains a session key that corresponds to a local session key. Digital content is transmitted to each device whose session key corresponds to the local key. Digital content is prevented from transmission to unselected devices not having a corresponding session key.

Disclosed herein are a method and device for transmitting digital content. A selection of at least one device authorized to receive digital content is detected. It is identified whether each selected device contains a session key that corresponds to a local session key. Digital content is transmitted to each device whose session key corresponds to the local key. Digital content is prevented from transmission to unselected devices not having a corresponding session key.