Audio cassette emulator with cryptographic media distribution control

A system of transferring authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the system comprising:

• an input for receiving a transfer authorization request having an indicator of the first device, an indicator of the second device, and an indicator of the protected electronic content;
• a processor for updating a first device history table to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• an output for communicating a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device.

A method of transferring authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the method comprising:

• receiving a transfer authorization request having an indicator of the first device an indicator of the second device, and an indicator of the protected electronic content;
• updating a first device history table to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• communicating a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device;
• wherein the first and second devices are devices which may be inserted into a standard tape player having a plurality of conventional user controls.

A system of transferring authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the system comprising:

• an input for receiving a transfer authorization request having an indicator of the first device, an indicator of the second device, and an indicator of the protected electronic content;
• a processor for updating a first device history table to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• an output for communicating a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device;
• wherein the first and second devices are devices which may be inserted into a standard tape player having a plurality of conventional user controls.

A method of operating a device manager to transfer authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the device manager being a different device than the first and second devices, the method comprising:

• receiving, at the device manager, a transfer authorization request having an indicator of the first device, an indicator of the second device, and an indicator of the protected electronic content;
• updating a first device history table stored by the device manager to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table stored by the device manager to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• communicating from the device manager a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device.

A method of operating a device manager to transfer authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the device manager being a different device than the first and second devices, the method comprising:

• receiving, at the device manager, a transfer authorization request having an indicator of the first device, an indicator of the second device, and an indicator of the protected electronic content;
• updating a first device history table stored by the device manager to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table stored by the device manager to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• communicating from the device manager a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device;
• wherein the first and second devices are devices which may be inserted into a standard tape player having a plurality of conventional user controls.

A device manager which is capable of transferring authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the device manager being a different device than the first and second devices, the device manager comprising:

• a device manager input for receiving a transfer authorization request having an indicator of the first device, an indicator of the second device, and an indicator of the protected electronic content;
• a device manager processor for updating a first device history table to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• a device manager output for communicating a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content, and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device.

A device manager which is capable of transferring authorization to render protected electronic content from a first device to a second device having a device cryptographic key, the device manager being a different device than the first and second devices, the device manager comprising:

• a device manager input for receiving a transfer authorization request having an indicator of the first device, an indicator of the second device and an indicator of the protected electronic content;
• a device manager processor for updating a first device history table to indicate that the first device is not authorized to render the protected electronic content and updating a second device history table to indicate that second device is authorized to render the protected electronic content based on the received transfer authorization request;
• and
• a device manager output for communicating a transfer authorization response having an indicator of the second device, an indicator of the protected electronic content and a content cryptographic key for the protected electronic content protected using the device cryptographic key of the second device so that only the second device may gain access to the content cryptographic key by use of the device cryptographic key of the second device;
• wherein the first and second devices are devices which may be inserted into a standard tape player having a plurality of conventional user controls.