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trezor-firmware/core/embed/fw_ss/notes.md

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  • automatizace nastaveni sau a mpu (pouziti symbolu z linker skriptu)
  • navrhnout hlavicku neprivilegovane aplikace
  • navrh secure API, core API // - dalsi zkoumani trustzone na STM32U5 (rozdeleni zodpovednosti mezi secure a privileged)

//- prozkoumat primy prechod z unsecure+unprivileged do secure+privileged //- core_api, kopirovani a kontrola parametru, ochrana proti TOCTOU utoku //- secure_api, kopirovani a kontrola parametru, cmse_check_address_range() (TT instrukce) //- dalsich zkoumani Cortex-M33 (registry cpu) //- nastudovovat zranitelnosti https://cactilab.github.io/assets/pdf/ret2ns2023.pdf //- prechod secure -> unsecure, vynulovat registry