Methods, apparatuses, system and computer programs for key update
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United States of America Patent
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Jul 18, 2017
Grant Date -
Dec 2, 2010
app pub date -
Apr 2, 2008
filing date -
May 15, 2007
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Abstract
It is disclosed a method comprising monitoring validity of limited-validity key information, acquiring, from a network entity upon invalidity of the limited-validity key information, limited-validity transaction identification information based on unlimited-validity identification information identifying a terminal, generating new limited-validity key information based on the acquired limited-validity transaction identification information, and transmitting the acquired limited-validity transaction identification information to a network element.
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