Cyptographic key generation

A technique for generating a cryptographic key (120) is provided. The technique is particularly useful for protecting the communication between two entities (202, 302; 204, 304) cooperatively running a distributed security operation. The technique comprises providing at least two parameters (106, 10...

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Bibliographic Details
Main Authors NÄSLUND, MATS, NORRMAN, KARL
Format Patent
LanguageEnglish
Polish
Published 25.04.2022
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A technique for generating a cryptographic key (120) is provided. The technique is particularly useful for protecting the communication between two entities (202, 302; 204, 304) cooperatively running a distributed security operation. The technique comprises providing at least two parameters (106, 108), the first parameter (106) comprising or deriving from some cryptographic keys (110, 112) which have been computed by the first entity (202, 302) by running the security operation; and the second parameter (108) comprising or deriving from a token (116) having a different value each time the security (114) operation is initiated by the second entity (204, 304) for the first entity (202, 302). A key derivation function is applied to the provided parameters (106, 108) to generate the desired cryptographic key (120).
Bibliography:Application Number: PL20120005934T