Mobile terminal, embedded sim card and access method and device thereof
An access method and access device technology, applied in wireless communication, network data management, electrical components, etc., can solve problems such as inability to support simultaneous access of multiple numbers, inability to access multiple configuration files at the same time, etc.
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[0023] refer to figure 1 , a structural schematic diagram of an existing embedded SIM card is given, and the embedded SIM card includes a hardware part and a software part. The hardware part of the embedded SIM card includes a processor, an encryption and decryption unit, etc., and usually exists in the form of a chip. The software part of the embedded SIM card runs on the hardware of the embedded SIM card, that is, when the hardware of the embedded SIM card is powered on, the software part of the embedded SIM card runs on it.
[0024] The software of the embedded SIM card includes an embedded SIM card operating system and a data security domain. The embedded SIM card operating system contains the most basic platform features and supports the features defined in GPCS. The data security domain includes eUICC Certificate Authority Security Domain (eCASD), certificate issuer root security domain configuration (Issuer Security Domain Root, ISD-R) and configuration file data secu...
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