To add support more features in the future in the wallet additional external storage space might be required. Having larger storage will also allow for more graphical objects, ability to store images for NFTs and design a better user experience. External Flash Memory will be used to store non-secure applications only and will never store private keys associated with cryptocurrency accounts.

All communications between Secure Microcontroller and the off-chip flash memory will be handled through OTF (On the Fly) encryption, which means data that exits microcontroller through the communication interface will be already encrypted and when retrieved will be decrypted in the microcontroller. AES keys are stores in the microcontroller and will never leave the secure domain.

Storage Spec:

  • Capacity: 16 MBytes

  • Type: Non-Volatile Flash

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