Nv Items Reader Writer !!top!! -

| Feature | (ESP32) | TSS NV (TPM 2.0) | HALFRED NV Module (Generic) | | :--- | :--- | :--- | :--- | | Primary Use | Application-level storage in MCU flash. | High-security storage in a dedicated TPM. | Uniform abstraction for various physical NVM devices. | | Interface | Type-specific set/get functions like nvs_set_i32() . | NvReaderWriter struct with methods and traits. | Handle-based API ( NV_Memory type). | | Capabilities | Handles key-value pairs; supports blobs and strings. | Works with NV Indexes; automatic multi-part reads for large data. | Supports asynchronous write operations in RTOS environments. | | Programming Lang | Primarily C. | Primarily Rust (via tss-esapi crate). | C. | | Security Features | Basic (no encryption; depends on flash encryption). | TPM-backed strong authorization policies. | Limited, typically relies on hardware abstraction. |

Elias picked up the device. It was a generic black brick, the screen a spiderweb of cracks. "Standard Qualcomm chipset," he murmured. "But the NV items are likely encrypted." nv items reader writer