US 12,114,166 B2
Method for setting up a subscription profile, method for providing a subscription profile, subscriber identity module
Nils Nitsch, Markt Schwaben (DE)
Assigned to GIESECK+DEVRIENT MOBILE SECURITY GERMANY GMBH, Munich (DE)
Appl. No. 17/612,440
Filed by GIESECKE+DEVRIENT MOBILE SECURITY GMBH, Munich (DE)
PCT Filed May 19, 2020, PCT No. PCT/EP2020/025233
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/239255, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 10 2019 003 674.3 (DE), filed on May 24, 2019.
Prior Publication US 2022/0232387 A1, Jul. 21, 2022
Int. Cl. H04W 12/30 (2021.01); H04W 8/18 (2009.01); H04W 12/03 (2021.01); H04W 12/04 (2021.01); H04W 12/40 (2021.01)
CPC H04W 12/35 (2021.01) [H04W 8/183 (2013.01); H04W 12/03 (2021.01); H04W 12/04 (2013.01); H04W 12/40 (2021.01)] 16 Claims
OG exemplary drawing
 
1. A method for setting up a subscription profile in a subscriber identity module, wherein the following method steps take place in the subscriber identity module:
receiving a subscription profile encrypted with a cryptographic key of a subscription server,
wherein the cryptographic key for decrypting the subscription profile is unknown to the subscriber identity module at the time of receiving;
storing the encrypted subscription profile without decrypting the subscription profile;
receiving the cryptographic key at a time after the storing step;
decrypting the encrypted subscription profile with the cryptographic key; and
installing the decrypted subscription profile to set up the subscription profile in the subscriber identity module;
wherein decrypting the encrypted subscription profile and installing the decrypted subscription profile are decoupled in time from receiving the cryptographic key;
wherein decrypting the encrypted subscription profile and installing the decrypted subscription profile is coordinated to occur in context of a contract conclusion.