Methods, apparatuses, system and computer programs for key update
AssigneeNokia Corporation
InventorsSilke Holtmanns, Tao Haukka, Pekka Johannes Laitinen
Life of this patent
Estimating the term…
Abstract
It is disclosed a method comprising monitoring validity of limited-validity key information, acquiring, from a net-work 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.
Claims20
1-38. (canceled)
An apparatus, comprising:
- a monitor configured to monitor validity of limited-validity key information;
- an acquirer configured to acquire, 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;
- a generator configured to generate new limited-validity key information based on the acquired limited-validity transaction identification information;
- and
- a transmitter configured to transmit the acquired limited-validity transaction identification information to a network element.
An apparatus, comprising:
- a sender configured to send, to a network entity, unlimited-validity identification information identifying a terminal;
- a receiver configured to receive, from the network entity, limited-validity key information synchronized with corresponding limited-validity key information of the terminal;
- and
- a generator configured to generate limited-validity service information using the received limited-validity key information.
An apparatus, comprising:
- a receiver configured to receive, from a network element, unlimited-validity identification information identifying a terminal;
- a generator configured to generate limited-validity key information synchronized with corresponding limited-validity key information of the terminal based on the received unlimited-validity identification information;
- and
- a sender configured to send, to the network element, the generated limited-validity key information.
A computer program product comprising a computer-readable medium bearing computer program code embodied therein for use with a computer, the computer program code comprising:
- code for monitoring validity of limited-validity key information;
- code for 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;
- code for generating new limited-validity key information based on the acquired limited-validity transaction identification information;
- and
- code for transmitting the acquired limited-validity transaction identification information to a network element.
A computer program product comprising a computer-readable medium bearing computer program code embodied therein for use with a computer, the computer program code comprising:
- code for sending, to a network entity, unlimited-validity identification information identifying a terminal;
- code for receiving, from the network entity, limited-validity key information synchronized with corresponding limited-validity key information of the terminal;
- and
- code for generating limited-validity service information using the received limited-validity key information.
A computer program product comprising a computer-readable medium bearing computer program code embodied therein for use with a computer, the computer program code comprising:
- code for receiving, from a network element, unlimited-validity identification information identifying a terminal;
- code for generating, limited-validity key information synchronized with corresponding limited-validity key information of the terminal based on the received unlimited-validity identification information;
- and
- code for sending, to the network element, the generated limited-validity key information.
Dependencies are inferred from the claim text.