The invention relates to the technical field of
embedded security, and discloses an installation
system of an eSIM configuration file, which is applied to
terminal equipment, and the installation
system comprises a
communication interface configured to receive an
instruction data packet sent by an SM-DP +
server, the
instruction data packet comprises a security load and an execution bill, the security load is an eSIM configuration file encrypted based on a public key of an eSE asymmetric key pair; the fusion
security domain comprises an eSE and an embedded
universal integrated circuit card (eUICC), and the eSE is in
secure communication with the eUICC; the routing logic unit is configured to
route the
instruction data packet to the eSE by hardware; wherein the eSE is configured to verify the execution bill, decrypt the security load based on a private key of the asymmetric key pair of the eSE after the
verification is passed, so as to obtain an eSIM configuration file, and transmit the eSIM configuration file to the eUICC in a streaming manner; the eUICC is configured to perform an installation of the eSIM profile. According to the method, the security, reliability and anti-
attack capability of eSIM configuration file installation can be improved. The invention further discloses an eSIM configuration file installation method and device and
terminal equipment.