Abstract: Systems, apparatuses, and methods for improving security of a silicon-based system by creating a glitch-resistant process for executing a software code block on the silicon-based system are disclosed. An example method may begin by marking the software code block as non-executable. Second, intent to execute the software code block is registered with a staging register. Third, the software code block is compressed into a compression constant. Fourth, the compression constant is compared with a first predetermined value using two comparators. Fifth, responsive to the comparators providing a true result after comparison, the software code block is marked as executable to allow the software code block to execute. In another aspect, the example method may be repeated for n>1 iterations, and in each iteration i, an ith software code block is compressed into an ith compression constant that is compared to an ith predetermined value.

Abstract: Systems, apparatuses, and methods for improving security of a silicon-based system by creating a glitch-resistant process for executing a software code block on the silicon-based system are disclosed. An example method may begin by marking the software code block as non-executable. Second, intent to execute the software code block is registered with a staging register. Third, the software code block is compressed into a compression constant. Fourth, the compression constant is compared with a first predetermined value using two comparators. Fifth, responsive to the comparators providing a true result after comparison, the software code block is marked as executable to allow the software code block to execute. In another aspect, the example method may be repeated for n>1 iterations, and in each iteration i, an ith software code block is compressed into an ith compression constant that is compared to an ith predetermined value.

Abstract: Systems, apparatuses, and methods for improving security of a silicon-based system by creating a glitch-resistant process for executing a software code block on the silicon-based system are disclosed. An example method may begin by marking the software code block as non-executable. Second, intent to execute the software code block is registered with a staging register. Third, the software code block is compressed into a compression constant. Fourth, the compression constant is compared with a first predetermined value using two comparators. Fifth, responsive to the comparators providing a true result after comparison, the software code block is marked as executable to allow the software code block to execute. In another aspect, the example method may be repeated for n>1 iterations, and in each iteration i, an ith software code block is compressed into an ith compression constant that is compared to an ith predetermined value.

Abstract: Systems and methods provide for controlling download and playback of media content. A system includes a client, which can play content, and a server. The server includes a permission system that can determine whether a client request to download or play content should be granted. All purchase, download, and playback requests require permission from the permission system. The server also includes a DD module system that transfers a DD module to the client. The DD module includes a content key decryption module, a content decryption module, and a content decompression module. The content key decryption module decrypts an encrypted content key that was received from the server. The decryption uses a unique DD module key that has been hard-coded into the content key decryption module. The content decryption module uses the content key to decrypt encrypted content. The content decompression module decompresses compressed content so that it can be played.

Abstract: Systems and methods provide for controlling download and playback of media content. A system includes a client, which can play content, and a server. The server includes a permission system that can determine whether a client request to download or play content should be granted. All purchase, download, and playback requests require permission from the permission system. The server also includes a DD module system that transfers a DD module to the client. The DD module includes a content key decryption module, a content decryption module, and a content decompression module. The content key decryption module decrypts an encrypted content key that was received from the server. The decryption uses a unique DD module key that has been hard-coded into the content key decryption module. The content decryption module uses the content key to decrypt encrypted content. The content decompression module decompresses compressed content so that it can be played.

Abstract: Systems and methods provide for controlling download and playback of media content. A system includes a client, which can play content, and a server. The server includes a permission system that can determine whether a client request to download or play content should be granted. All purchase, download, and playback requests require permission from the permission system. The server also includes a DD module system that transfers a DD module to the client. The DD module includes a content key decryption module, a content decryption module, and a content decompression module. The content key decryption module decrypts an encrypted content key that was received from the server. The decryption uses a unique DD module key that has been hard-coded into the content key decryption module. The content decryption module uses the content key to decrypt encrypted content. The content decompression module decompresses compressed content so that it can be played.