CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE: CPU Jitter RNG Test Interface

General informations

The Linux kernel configuration item CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE has multiple definitions:

CPU Jitter RNG Test Interface found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE:

• prompt: CPU Jitter RNG Test Interface
• type: bool
• depends on: (none)
• defined in crypto/Kconfig
• found in Linux kernels: 6.5–6.8, 6.9-rc+HEAD

Help text

The test interface allows a privileged process to capture the raw unconditioned high resolution time stamp noise that is collected by the Jitter RNG for statistical analysis. As this data is used at the same time to generate random bits, the Jitter RNG operates in an insecure mode as long as the recording is enabled. This interface therefore is only intended for testing purposes and is not suitable for production systems.

The raw noise data can be obtained using the jent_raw_hires debugfs file. Using the option jitterentropy_testing.boot_raw_hires_test=1 the raw noise of the first 1000 entropy events since boot can be sampled.

If unsure, select N.

found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE:

• prompt:
• type: bool
• depends on: (none)
• defined in crypto/Kconfig
• found in Linux kernels: 6.7–6.8, 6.9-rc+HEAD

Help text

(none)

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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