US 11,856,402 B2
Identity-based message integrity protection and verification for wireless communication
Xiangying Yang, Cupertino, CA (US); Shu Guo, Beijing (CN); Lijia Zhang, Beijing (CN); Qian Sun, Beijing (CN); Huarui Liang, Beijing (CN); Fangli Xu, Beijing (CN); Yuqin Chen, Shenzen (CN); Haijing Hu, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Hao Duo, Beijing (CN); and Lanpeng Chen, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Nov. 15, 2021, as Appl. No. 17/455,000.
Application 17/455,000 is a division of application No. 16/293,521, filed on Mar. 5, 2019, granted, now 11,178,547.
Claims priority of application No. PCT/CN2018/095137 (WO), filed on Jul. 10, 2018.
Prior Publication US 2022/0086642 A1, Mar. 17, 2022
Int. Cl. H04L 29/06 (2006.01); H04L 29/08 (2006.01); H04W 12/106 (2021.01); H04L 9/32 (2006.01); H04W 74/00 (2009.01); H04W 12/069 (2021.01); H04W 12/0433 (2021.01); H04W 72/23 (2023.01)
CPC H04W 12/106 (2021.01) [H04L 9/3268 (2013.01); H04W 12/0433 (2021.01); H04W 12/069 (2021.01); H04W 72/23 (2023.01); H04W 74/006 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for protecting message integrity, the method comprising:
by a network entity:
sending a request to a private key generator (PKG) server, the request including a first identity value (ID1) for the network entity;
receiving from the PKG server a response that includes a first private key (SKID1) that is based on ID1 and on a private key of the PKG server (SKPKG); and
prior to establishing a security context with a user equipment (UE):
generating a signature for a first message, the signature based on SKID1; and
sending the first message concatenated with the signature to the UE.