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Secure short message service over non-access stratum

專利號(hào)
US10785653B2
公開日期
2020-09-22
申請(qǐng)人
Nokia Technologies Oy(FI Espoo)
發(fā)明人
Suresh Nair; Anja Jerichow; Nagendra S. Bykampadi
IPC分類
H04W12/10; H04W8/02; H04W12/04; H04W4/14; H04W60/00; H04L9/14; H04L29/06; H04W12/00; H04W8/18; H04W88/18
技術(shù)領(lǐng)域
nas,sms,amf,smsf,message,ue,integrity,equipment,in,user
地域: Espoo

摘要

A short message service (SMS) message is encrypted using an encryption key stored at a user equipment and an access and mobility management function (AMF) and the encrypted SMS message is added to a payload of a non-access stratum (NAS) message that includes an NAS header. Integrity protection is applied to the NAS message using an integrity key stored at the user equipment and the AMF and the integrity-protected NAS message is transmitted. The NAS message is received via an NAS link between the user equipment and the AMF. An integrity check is performed on the NAS message using the integrity key. An encrypted short message service (SMS) message is extracted from a payload of the NAS message in response to the integrity check being successful and the encrypted SMS message is decrypted using the encryption key.

說明書

A computer readable storage medium may include any storage medium, or combination of storage media, accessible by a computer system during use to provide instructions and/or data to the computer system. Such storage media can include, but is not limited to, optical media (e.g., compact disc (CD), digital versatile disc (DVD), Blu-Ray disc), magnetic media (e.g., floppy disc, magnetic tape, or magnetic hard drive), volatile memory (e.g., random access memory (RAM) or cache), non-volatile memory (e.g., read-only memory (ROM) or Flash memory), or microelectromechanical systems (MEMS)-based storage media. The computer readable storage medium may be embedded in the computing system (e.g., system RAM or ROM), fixedly attached to the computing system (e.g., a magnetic hard drive), removably attached to the computing system (e.g., an optical disc or Universal Serial Bus (USB)-based Flash memory), or coupled to the computer system via a wired or wireless network (e.g., network accessible storage (NAS)).

Note that not all of the activities or elements described above in the general description are required, that a portion of a specific activity or device may not be required, and that one or more further activities may be performed, or elements included, in addition to those described. Still further, the order in which activities are listed are not necessarily the order in which they are performed. Also, the concepts have been described with reference to specific embodiments. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the present disclosure as set forth in the claims below. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of the present disclosure.

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