eUICC
{{Short description|Architectural standards for eSIM}}
{{DISPLAYTITLE:eUICC}}
{{Third-party|date=October 2022}}
eUICC (embedded UICC{{cite web |last1=Weber |first1=Tobias |title=What is an eUICC and Why Does It Matter? |url=https://www.emnify.com/iot-glossary/euicc |website=EMnify |publisher=EMnify |access-date=17 September 2022}}) refers to the architectural standards published by the GSM Association (GSMA){{cite web
|url=https://www.gsma.com/esim/esim-specification/
|title=eSIM Consumer and IoT Specifications
|author=
|website=gsma.com
|publisher=GSM Association
|access-date=14 September 2022
|url=https://www.gsma.com/esim/esim-m2m-specifications/
|title=M2M Specifications
|website=gsma.com
|publisher=GSM Association
|access-date=14 September 2022
}} or implementations of those standard for eSIM, a device used to securely store one or more SIM card profiles, which are the unique identifiers and cryptographic keys used by cellular network service providers to uniquely identify and securely connect to mobile network devices. Applications of eUICC are found in mobile network devices (cell phones, tablets, portable computers, security controllers, medical devices, etc.) that use GSM cellular network eSIM technology.
Standards
The core standards that define eUICC are published by the GSM Association in two topical areas.
=Consumer and IOT=
Core standards for implementing eSIM on mobile devices include the following articles:
- [https://www.gsma.com/esim/resources/sgp-21-architecture-specification/ eSIM Architecture Specification]{{cite web
|url=https://www.gsma.com/esim/resources/sgp-21-architecture-specification/
|title=SGP.21 eSIM Architecture Specification
|publisher=GSM Association
|date=3 Aug 2021
}}
- [https://www.gsma.com/esim/resources/sgp-31-esim-iot-architecture-and-requirements/SGP.31 eSIM IoT Architecture and Requirement Specification]
- [https://www.gsma.com/esim/wp-content/uploads/2021/10/SGP.22-2.4.pdf SGP 22 Remote Sim Provisioning(RSP) Architecture for consumer Devices]
=Machine to Machine (M2M)=
GSMA publishes standards for machine-to-machine (M2M) third-party provisioning of eSIM which includes the following articles:
- [https://www.gsma.com/esim/resources/sgp-01-v4-2/SGP.01 SGP.01 M2M eSIM Architecture] v4.2
- [https://www.gsma.com/esim/resources/sgp-02-v4-2-1/SGP.02 SGP.02 eSIM Technical Specifications] V4.2.1
Implementation
eUICC can refer to any implementation or application of the eUICC standards in an eSIM device. Each implementation of eUICC includes software code, a processor to emulate the software, non-volatile memory used to store the unique identifiers and cryptographic keys that are part of a SIM profile, and a bus interface to communicate the SIM profile to the mobile device. eUICC standards specify that only one eUICC security controller (ECASD) may be implemented in an eSIM, but the eSIM may store multiple SIM profiles.{{cite web
|url=https://www.gsma.com/esim/wp-content/uploads/2021/10/SGP.22-2.4.pdf
|title=RSP Technical Specification Version 2.4
|date=28 October 2021
|author=
|website=gsma.com
|publisher=GSM Association
}}
EID
GSMA standards define EID as "eUICC Identifier".{{cite web
|url=https://www.gsma.com/esim/resources/sgp-29-v1-0-eid-definition-and-assignment-process/
|title=SGP.29 v1.0 EID Definition and Assignment Process
|date=31 Jul 2020
|publisher=GSM Association
}} Some developers / implementers have referred to this using the descriptive term "eSIM identifier", which summarizes the function of an eUICC Identifier.{{cite web
|url=https://patents.google.com/patent/US20150350879A1/en
|title=Electronic subscriber identity module application identifier handling
|website=Google Patents
|access-date=16 September 2022
|url=https://patentimages.storage.googleapis.com/e1/7c/07/997bf8aacc9ad5/US20150350879A1.pdf
|title=United States Patent Application Publication US20150350879A1
|date=3 December 2015
|website=Google patents
|publisher=United States Patent and Trademark Office
}} Some third parties have joined this acronym with the term "electronic identity document", which is a general concept of any identifier stored or presented in electronic format.{{cite web
|url=https://en.tab-tv.com/?p=18876
|title=What is an EID number in a phone?
|last=Sheridan
|first=Anatoliy
|date=18 August 2022
|website=Tab-TV
|url=https://splaitor.com/what-is-a-phone-eid-number-explained/
|title=What is a phone EID number explained
|last=Sereda
|first=Vladimir
|date=22 November 2021
|publisher=Splaitor
}}
References
{{Reflist}}