KEY REFRESH BETWEEN TRUSTED UNITS
First Claim
Patent Images
1. An apparatus comprising:
- encryption logic to;
identify a particular session key, wherein the particular session key is one of a plurality of session keys for use in encrypting content to be sent from a first device; and
encrypt particular content with the particular session key to obtain encrypted particular content; and
I/O logic to;
cause the particular content to be sent with a key refresh structure, wherein the key refresh structure is to identify that the particular session key was used to encrypt the particular content.
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Abstract
Encryption logic to identify a particular session key, where the particular session key is one of a plurality of session keys for use in encrypting content to be sent from a first device. The encryption logic is to encrypt particular content with the particular session key to obtain encrypted particular content. I/O logic is provided that can cause the particular content to be sent with a key refresh structure, where the key refresh structure is to identify that the particular session key was used to encrypt the particular content.
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Citations
27 Claims
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1. An apparatus comprising:
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encryption logic to; identify a particular session key, wherein the particular session key is one of a plurality of session keys for use in encrypting content to be sent from a first device; and encrypt particular content with the particular session key to obtain encrypted particular content; and I/O logic to; cause the particular content to be sent with a key refresh structure, wherein the key refresh structure is to identify that the particular session key was used to encrypt the particular content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
decryption logic to; receive a set of encrypted packets and a key refresh structure associated with the set of encrypted packets; identify from the key refresh structure, a particular one of a plurality of session keys designated for use in encrypting content sent between a first device and a second device; and decrypt the set of encrypted packets with the particular session key. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
I/O logic to; request generation of at least one new session key for use in encrypting content between a first device and a second device in a session; assign the new session key a key identifier, wherein the new session key is one of a plurality of session keys to be used by the first and second devices in the session and each of the plurality of session keys is to be associated with a respective key identifier; cause a set of packets to be encrypted using the new session key; and send the encrypted set of packets from the first device to the second device, wherein sending the set of packets includes generating a key refresh structure to be included with the encrypted set of packets and identify that the new session key was used by the first device to encrypt the set of packets. - View Dependent Claims (20, 21, 22)
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23. A system comprising:
a media gateway comprising; a system-on-chip to serve content packets; a transcoder to transcode the content packets; and a security encryption controller to generate a plurality of session keys during a session between the transcoder and system-on-chip, wherein a plurality of sets of content packets are to be sent between the transcoder and system-on-chip, each set of content packets is to be encrypted by a respective one the plurality of session keys, and each encrypted set of content packets is to be sent to include a key refresh structure identifying the respective session key used to encrypt the set of content packets. - View Dependent Claims (24, 25, 26, 27)
Specification