Method for producing key material
First Claim
Patent Images
1. Method for producing key material in a station of a communication system, comprising the steps of:
- producing authentication information by performing an authentication procedure with a communication system;
exchanging key generation information with a second system external to the communication system; and
generating a communication key for communication with the second system at least in part on a basis of the authentication information and the key generation information.
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Abstract
This invention relates to security procedures in a communication system, specifically to production of key material. The invention provides a method for producing key material in a highly secure way for use in communication with a local network of a company. The method uses authentication information obtained from the communication system and information exchanged locally between a mobile station and the authentication systems of the company to produce a communication key for use in authentication procedures or e.g. for signing and/or encrypting data.
90 Citations
35 Claims
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1. Method for producing key material in a station of a communication system, comprising the steps of:
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producing authentication information by performing an authentication procedure with a communication system;
exchanging key generation information with a second system external to the communication system; and
generating a communication key for communication with the second system at least in part on a basis of the authentication information and the key generation information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16)
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11. Method for producing key material in a node of an authentication system, comprising the steps of:
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requesting authentication information related to a station from an authentication node of a communication system;
exchanging key generation information with the station external to the communication system; and
generating a communication key at least in part on a basis of the authentication information and the key generation information. - View Dependent Claims (12, 17)
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18. A station for a communication system, comprising:
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means for producing authentication information by performing an authentication procedure with a communication system;
means for exchanging key generation information with a second system external to the communication system; and
means for generating a communication key for communication with the second system at least in part on a basis of the authentication information and the key generation information.
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19. A node for an authentication system for a local area network, comprising:
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means for requesting authentication information related to a station of a wireless communication system from an authentication node of the wireless communication system, means for exchanging key generation information with a station of a wireless communication system external to the wireless communication system, and means for generating a communication key at least in part on a basis of authentication information and key generation information.
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20. A software program product for a station, embodied on a computer readable medium, comprising software program code for carrying out the steps of:
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producing authentication information by performing an authentication procedure with a communication system;
exchanging key generation information with a second system external to the communication system; and
generating a communication key for communication with the second system at least in part on a basis of the authentication information and the key generation information.
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21. A software program product for a node of a communication system, embodied on a computer readable medium, comprising software program code for carrying out the steps of:
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requesting authentication information related to a station from an authentication node of a communication system;
exchanging key generation information with the station external to the communication system; and
generating a communication key at least in part on a basis of the authentication information and the key generation information.
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22. A station for a communication system, comprising:
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a controller for producing authentication information by performing an authentication procedure with a communication system, a controller for exchanging key generation information with a second system external to the communication system, and a key generator for generating a communication key for communication with the second system at least in part on a basis of the authentication information and the key generation information - View Dependent Claims (23, 24, 25, 26)
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27. A node for an authentication system for a local area network, comprising:
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a requester for requesting authentication information related to a station of a wireless communication system from an authentication node of the wireless communication system, a controller for exchanging key generation information with a station of a wireless communication system external to the wireless communication system, and a key generator for generating a communication key at least in part on a basis of authentication information and key generation information. - View Dependent Claims (28, 29, 30, 31)
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32. System for producing key material, comprising:
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a first authentication node, a second authentication node, a requester in the second authentication node for requesting authentication information related to a station from the first authentication node, a controller in the second authentication node for exchanging key generation information with a station external to the communication system, and a key generator in the second authentication node for generating a communication key at least in part on a basis of authentication information and key generation information. - View Dependent Claims (33, 34, 35)
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Specification