CRYPTOGRAPHIC KEY GENERATION

专利名称：CRYPTOGRAPHIC KEY GENERATION发明人：NORRMAN, Karl,NÄSLUND, Mats申请号：EP08784926.1申请日：20080721公开号：EP2291946A1公开日：20110309

摘要：A technique for generating a cryptographic key (120) is provided. The techniqueis particularly useful for protecting the communication between two entities (202, 302;204, 304) cooperatively running a distributed security operation. The technique comprisesproviding an input to a key derivation function, the input comprising at least twoparameters (106, 108), the first parameter (106) comprising or derived from somecryptographic keys (110, 112) which have been computed by the first entity (202, 302) byrunning the security operation and the second parameter (108) comprising or derivedfrom a token (116) computed by the second entity (204, 304) for the first entity (202, 302)by running the security operation. The key derivation function is applied to the providedinput to generate the desired cryptographic key (120).

申请人：Telefonaktiebolaget L M Ericsson (PUBL)

地址：1 83 Stockholm SE

国籍：SE

代理机构：Röthinger, Rainer

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