3 ms·
eSIMs are just the SIM chip implemented in a surface mount component soldered directly onto the board. The only difference is some limited parts of the cards me
by mike_d 5y ago
eSIMs are just the SIM chip implemented in a surface mount component soldered directly onto the board. The only difference is some limited parts of the cards memory are not write protected so it can be provisioned from software.
- b112 5y agoMeaning it is easier to hack, and also, debug/monitor, for now it is harder to place a device between sim and phone, as in this article.
- lxgr 5y ago> some limited parts of the cards memory are not write protected This is a huge oversimplification. The card is running software that allows downloading and installing new profiles, but it will perform cryptographic validation of any payload handed to it. Even if a SIM profile passes that validation, the resulting SIM application will be instantiated with limited privileges on the smart card (which is arguably quite powerful since it matches that of SIM applications on physical SIMs).