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zephyr/drivers/random/Kconfig.esp32

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drivers: random: Add ESP32 random number generator driver The random number generator from ESP32 uses noise from Wi-Fi and Bluetooth radios. If these are off, a pseudo-random number is generated instead; this is currently the case, but even though it's a black box, it's arguably better than returning a timestamp as a pseudo-random number generator. According to the ESP32 Technical Reference manual, the RNG passed the Dieharder Random Number Test suite (version 3.31.1)[1], but nothing has been said about the quality of the PRNG. The RNG register is read directly; no effort is made to use its contents to feed an entropy pool in a way that's similar to /dev/random on POSIX systems, as no such subsystem exists on Zephyr at the moment. [1] http://webhome.phy.duke.edu/~rgb/General/dieharder.php Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-07-01 01:12:07 +08:00
# Kconfig.esp32 - esp32 random generator driver configuration
#
doc: fix misspellings in Kconfig files Also fixed missing newline at end of file Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2017-08-17 03:10:00 +08:00
# Copyright (c) 2017 Intel Corporation
drivers: random: Add ESP32 random number generator driver The random number generator from ESP32 uses noise from Wi-Fi and Bluetooth radios. If these are off, a pseudo-random number is generated instead; this is currently the case, but even though it's a black box, it's arguably better than returning a timestamp as a pseudo-random number generator. According to the ESP32 Technical Reference manual, the RNG passed the Dieharder Random Number Test suite (version 3.31.1)[1], but nothing has been said about the quality of the PRNG. The RNG register is read directly; no effort is made to use its contents to feed an entropy pool in a way that's similar to /dev/random on POSIX systems, as no such subsystem exists on Zephyr at the moment. [1] http://webhome.phy.duke.edu/~rgb/General/dieharder.php Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-07-01 01:12:07 +08:00
#
# SPDX-License-Identifier: Apache-2.0
config RANDOM_ESP32_RNG
bool "ESP32 random number generator driver"
depends on RANDOM_GENERATOR && SOC_ESP32
default n
select RANDOM_HAS_DRIVER
help
This option enables the random number generator for ESP32 SoCs.
With Wi-Fi and Bluetooth disabled, this will produce pseudo-random
numbers: noise from these radios are used to feed entropy in this
doc: fix misspellings in Kconfig files Also fixed missing newline at end of file Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2017-08-17 03:10:00 +08:00
generator.