USB interface for performing transport I/O
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United States of America Patent
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May 9, 2017
Grant Date -
May 21, 2015
app pub date -
Jan 29, 2015
filing date -
Mar 13, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods for implementing a Transport I/O system are described. Network encrypted content may be received by a device. The device may provide the network encrypted content to a secure processor, such as, for example, a smart card. The secure processor obtains a network control word that may be used to decrypt the network encrypted content. The secure processor may decrypt the network encrypted content to produce clear content. In embodiments, the secure processor may then use a local control word to generate locally encrypted content specific to the device. The device may then receive the locally encrypted content from the secure processor and proceed to decrypt the locally encrypted content using a shared local encryption key. The secure processor may connect to the device via a standard connection, such as via a USB 3.0 connector.
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