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Title:
ENCRYPTION KEY GENERATION
Document Type and Number:
Japanese Patent JP2016096557
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technique to generate an encryption key protecting communication between two entities that execute distributed security operation in coordination.SOLUTION: A method includes providing at least two parameters 106, 108. The first parameter 106 comprises an aggregation of encryption keys 110, 112 calculated by a first entity executing security operation, or is derived from the aggregation. A second parameter 118 comprises a token 116 having a value different every time a second entity starts security operation regarding the first entity, or is derived from the token. In order to generate a desired encryption key 120, a key derivation function is applied on the basis of the provided parameters.SELECTED DRAWING: Figure 3

Inventors:
NASLUND MATS
NORMAN CARL
Application Number:
JP2015241380A
Publication Date:
May 26, 2016
Filing Date:
December 10, 2015
Export Citation:
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Assignee:
ERICSSON TELEFON AB L M
International Classes:
H04L9/08; H04L9/32
Domestic Patent References:
JP2006518121A2006-08-03
JP2008042715A2008-02-21
JP2005503717A2005-02-03
JP2008512068A2008-04-17
Foreign References:
WO2007062882A22007-06-07
WO2008054320A22008-05-08
US7131006B12006-10-31
WO2005032201A12005-04-07
WO2006113189A22006-10-26
WO2007062689A12007-06-07
Other References:
3GPP, RATIONALE AND TRACK OF SECURITY DECISIONS IN LONG TERM EVOLUTION (LTE) RAN / 3GPP SYSTEM ARCHITECTUR, JPN7011001351, 2007, pages 52 - 66, ISSN: 0003446188
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Takahiro Oto



 
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