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US 8,542,828 B2Granted
Cryptographic secret key distribution
AssigneeKoninklijke Philips N.V.
InventorsPhilip Andrew Rudland, Bas Driesen, Philip Anthony Jamieson
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Abstract
The present invention relates to cryptographic secret key distribution, wherein a value for a number of iterations can be individually set, so that the number of messages to be exchanged during generating a cryptographic secret key can be varied based on the set value of the iteration number.
Claims13
An apparatus for transmitting or receiving data securely using a cryptographic secret key, said apparatus comprising:
- a setting unit which provides a setting function for setting an iteration number, wherein a value for a number of iterations corresponding to the iteration number can be individually set;
- and
- a key generation controller for controlling a number of messages to be exchanged during generating said cryptographic secret key, wherein the number of messages to be exchanged can be varied based on a set value of said iteration number, and wherein the messages comprise test RSSI (T_rssi) messages, marginal readings (MR) messages, key material (KM) messages or key transport (KT) messages.
A method for transmitting or receiving encrypted data using a cryptographic secret key, said method comprising:
- providing, via a setting unit, a setting function for setting an iteration number, wherein a value for a number of iterations corresponding to the iteration number can be individually set;
- and
- controlling, via a key generation controller, a number of messages to be exchanged during generating said cryptographic secret key, wherein the number of messages to be exchanged can be varied based on a set value of said iteration number, and wherein the messages comprise test RSSI (T_rssi) messages, marginal readings (MR) messages, key material (KM) messages or key transport (KT) messages.
Dependencies are inferred from the claim text.