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CONFIG_CRYPTO_JITTERENTROPY: CPU Jitter Non-Deterministic RNG (Random Number Generator)

General informations

The Linux kernel configuration item CONFIG_CRYPTO_JITTERENTROPY has multiple definitions:

CPU Jitter Non-Deterministic RNG (Random Number Generator) found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_JITTERENTROPY:

Help text

CPU Jitter RNG (Random Number Generator) from the Jitterentropy library

A non-physical non-deterministic ("true") RNG (e.g., an entropy source compliant with NIST SP800-90B) intended to provide a seed to a deterministic RNG (e.g. per NIST SP800-90C). This RNG does not perform any cryptographic whitening of the generated

See https://www.chronox.de/jent.html

Jitterentropy Non-Deterministic Random Number Generator found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_JITTERENTROPY:

Help text

The Jitterentropy RNG is a noise that is intended to provide seed to another RNG. The RNG does not perform any cryptographic whitening of the generated random numbers. This Jitterentropy RNG registers with the kernel crypto API and can be used by any caller.

Hardware

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