| # Random configuration options |
| |
| # Copyright (c) 2017 Intel Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config TEST_RANDOM_GENERATOR |
| bool "Non-random number generator" |
| depends on !ENTROPY_HAS_DRIVER |
| help |
| This option signifies that the kernel's random number APIs are |
| permitted to return values that are not truly random. |
| This capability is provided for testing purposes, when a truly random |
| number generator is not available. The non-random number generator |
| should not be used in a production environment. |
| |
| choice |
| prompt "Random generator" |
| default ENTROPY_DEVICE_RANDOM_GENERATOR |
| depends on ENTROPY_HAS_DRIVER || TEST_RANDOM_GENERATOR |
| |
| config X86_TSC_RANDOM_GENERATOR |
| bool "x86 timestamp counter based number generator" |
| depends on TEST_RANDOM_GENERATOR && X86 |
| help |
| This options enables number generator based on timestamp counter |
| of x86 boards, obtained with rdtsc instruction. |
| |
| config TIMER_RANDOM_GENERATOR |
| bool "System timer clock based number generator" |
| depends on TEST_RANDOM_GENERATOR |
| help |
| This options enables number generator based on system timer |
| clock. This number generator is not random and used for |
| testing only. |
| |
| config ENTROPY_DEVICE_RANDOM_GENERATOR |
| bool "Use entropy driver to generate random numbers" |
| depends on ENTROPY_HAS_DRIVER |
| help |
| Enables a random number generator that uses the enabled |
| hardware entropy gathering driver to generate random |
| numbers. |
| |
| config XOROSHIRO_RANDOM_GENERATOR |
| bool "Use Xoroshiro128+ as PRNG" |
| depends on ENTROPY_HAS_DRIVER |
| help |
| Enables the Xoroshiro128+ pseudo-random number generator, that |
| uses the entropy driver as a seed source. This is not a |
| cryptographically secure random number generator. |
| |
| It is so named because it uses 128 bits of state. |
| |
| endchoice |
