mirror of https://github.com/ARMmbed/mbed-os.git
aae04b2516
These targets below just support PRNG, not real TRNG. They cannot annouce TRNG.
- NUMAKER_PFM_NUC472
- NUMAKER_PFM_M487
- NUMAKER_IOT_M487
On targets without TRNG, to run mbedtls applications which require entropy source,
there are two alternatives to TRNG:
- Custom entropy source:
Define MBEDTLS_ENTROPY_HARDWARE_ALT and provide custom mbedtls_hardware_poll(...)
- NV seed:
1. Define MBEDTLS_ENTROPY_NV_SEED
2. Define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO/MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and provide custom mbedtls_nv_seed_read(...)/mbedtls_nv_seed_write(...).
3. Don't define MBEDTLS_PSA_INJECT_ENTROPY. Meet mbedtls_psa_inject_entropy(...) undefined and then provide custom one, which must be compatible with mbedtls_nv_seed_read(...)/mbedtls_nv_seed_write(...) above.
4. For development, simulating partial provision process, inject entropy seed via mbedtls_psa_inject_entropy(...) pre-main.
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|---|---|---|
| .. | ||
| crypto | ||
| device | ||
| PeripheralNames.h | ||
| PeripheralPins.c | ||
| PeripheralPins.h | ||
| PinNames.h | ||
| PortNames.h | ||
| analogin_api.c | ||
| can_api.c | ||
| device.h | ||
| dma.h | ||
| dma_api.c | ||
| flash_api.c | ||
| gpio_api.c | ||
| gpio_irq_api.c | ||
| gpio_object.h | ||
| i2c_api.c | ||
| lp_ticker.c | ||
| mbed_overrides.c | ||
| objects.h | ||
| pinmap.c | ||
| port_api.c | ||
| pwmout_api.c | ||
| reset_reason.c | ||
| rtc_api.c | ||
| serial_api.c | ||
| sleep.c | ||
| spi_api.c | ||
| us_ticker.c | ||
| wait_ns.c | ||
| watchdog_api.c | ||