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CONFIG_GCC_PLUGIN_LATENT_ENTROPY: Generate some entropy during boot and runtime

General informations

The Linux kernel configuration item CONFIG_GCC_PLUGIN_LATENT_ENTROPY has multiple definitions:

Generate some entropy during boot and runtime found in scripts/gcc-plugins/Kconfig

The configuration item CONFIG_GCC_PLUGIN_LATENT_ENTROPY:

Help text

By saying Y here the kernel will instrument some kernel code to extract some entropy from both original and artificially created program state. This will help especially embedded systems where there is little 'natural' source of entropy normally. The cost is some slowdown of the boot process (about 0.5%) and fork and irq processing.

Note that entropy extracted this way is not cryptographically secure!

This plugin was ported from grsecurity/PaX. More information at: * https://grsecurity.net/ * https://pax.grsecurity.net/

Generate some entropy during boot and runtime found in arch/Kconfig

The configuration item CONFIG_GCC_PLUGIN_LATENT_ENTROPY:

Help text

By saying Y here the kernel will instrument some kernel code to extract some entropy from both original and artificially created program state. This will help especially embedded systems where there is little 'natural' source of entropy normally. The cost is some slowdown of the boot process (about 0.5%) and fork and irq processing.

Note that entropy extracted this way is not cryptographically secure!

This plugin was ported from grsecurity/PaX. More information at: * https://grsecurity.net/ * https://pax.grsecurity.net/

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