US Patent Application 18313813. SECURE STORAGE AND PROCESSING OF SIM DATA simplified abstract
Contents
SECURE STORAGE AND PROCESSING OF SIM DATA
Organization Name
Inventor(s)
Ahmed M. Soliman of Munich (DE)
Nitin Kuppelur of Bangalore (IN)
Ahmed Moustafa of Unterhaching (DE)
SECURE STORAGE AND PROCESSING OF SIM DATA - A simplified explanation of the abstract
This abstract first appeared for US patent application 18313813 titled 'SECURE STORAGE AND PROCESSING OF SIM DATA
Simplified Explanation
- This patent application describes techniques for managing SIM data for a wireless device. - The SIM data is encrypted using an encryption key by a processor external to a secure element. - The encrypted SIM data is stored in the secure element and in a non-volatile memory (NVM) of the wireless device. - The encryption key is stored in a secure NVM of the wireless device. - Both the encrypted SIM data and the encryption key are required to decrypt and recover the SIM data.
Original Abstract Submitted
This application describes techniques for managing subscriber identity module (SIM) data for a wireless device, including secure storage and processing of SIM data. Select SIM data is encrypted using an encryption key by a processor external to a secure element, e.g., a universal integrated circuit card (UICC) or electronic UICC (eUICC), and at least a portion of the select SIM data is stored in the secure element. The select SIM data can be divided into multiple parts, where a first part of the encrypted SIM data is stored in the secure element, while a second part of the encrypted SIM data is stored external to the secure element, such as in a non-volatile memory (NVM) of the wireless device. The encryption key is stored in a secure NVM of the wireless device. The encrypted SIM data and the encryption key are required to decrypt and recover the SIM data.
