Electronic device and method for processing secure data thereof

A secure data processing method of an electronic device, the method comprising:

• receiving a script forwarded from an external entity to a first secure domain among a plurality of secure domains of a secure chipset of the electronic device;
• obtaining an authentication certificate and a digital signature of the external entity by parsing the script;
• causing the secure chipset to verify the obtained authentication certificate of the external entity by using a first authentication key related to the authentication certificate of the external entity stored in the first secure domain;
• extracting a second authentication key from the authentication certificate of the external entity;
• and
• causing the secure chipset to validate the digital signature by using the second authentication key.

A non-transitory computer readable medium having instructions stored therein, which when executed by at least one processor cause the at least one processor to execute a method of securely processing data processing by an electronic device, the method comprising:

• receiving a script forwarded from an external entity to a first secure domain among a plurality of secure domains of a secure chipset of the electronic device;
• obtaining an authentication certificate and a digital signature of the external entity by parsing the script;
• causing the secure chipset to verify the obtained authentication certificate by using a first authentication key related to the authentication certificate of the external entity stored in the first secure domain;
• extracting a second authentication key from the authentication certificate of the external entity;
• and
• causing the secure chipset to validate the digital signature by using the second authentication key.