Secure telemetric link
First Claim
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1. In a telecommunications network having at least a first and second node, a method of transmitting actionable data in a secured telemetry wake-up packet from the first node to the second node, the method comprising the steps of:
- generating a message authentication code using a predefined protocol within the first node;
obtaining a current counter value from a memory of the first node indicative of a number of wake-up transmissions authored by the first node;
determining an identification of the second node;
composing a transmittable wake up message for the second node, wherein the transmittable wake up message includes the message authentication code, the current counter value and a predetermined amount of actionable data; and
transmitting the wake-up message.
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Accused Products
Abstract
A communications protocol is used to provide data privacy, message integrity, message freshness, and user authentication to telemetric traffic, especially to and from implantable medical devices in a body area network. Encryption, message integrity, and message freshness are provided through use of token-like nonces and ephemeral session-keys derived from device identification numbers and pseudorandom numbers.
28 Citations
28 Claims
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1. In a telecommunications network having at least a first and second node, a method of transmitting actionable data in a secured telemetry wake-up packet from the first node to the second node, the method comprising the steps of:
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generating a message authentication code using a predefined protocol within the first node; obtaining a current counter value from a memory of the first node indicative of a number of wake-up transmissions authored by the first node; determining an identification of the second node; composing a transmittable wake up message for the second node, wherein the transmittable wake up message includes the message authentication code, the current counter value and a predetermined amount of actionable data; and transmitting the wake-up message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A telecommunications network having at least a first and second node including transmitting actionable data in a secured telemetry wake-up packet from the first node to the second node comprising:
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means for generating a message authentication code using a predefined protocol within the first node; means for obtaining a current counter value from a memory of the first node indicative of a number of wake-up transmissions authored by the first node; means for determining an identification of the second node; means for composing a transmittable wake up message for the second node, wherein the transmittable wake up message includes the message authentication code, the current counter value and a predetermined amount of actionable data; and means for transmitting the wake-up message. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A first node that transmits actionable data in a secured telemetry wake-up packet to a second node, the first node comprising:
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one or more processors that generate a message authentication code using a predefined protocol, obtain a current counter value from a memory of the first node indicative of a number of wake-up transmissions authored by the first node, determine an identification of the second node and compose a transmittable wake up message for the second node, wherein the transmittable wake up message includes the message authentication code, the current counter value and a predetermined amount of actionable data; and a transceiver module that transmits the wake-up message. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification