CONFIG_PKEY: Kernel API for protected key handling

General informations

The Linux kernel configuration item CONFIG_PKEY:

• prompt: Kernel API for protected key handling
• type: tristate
• depends on: CONFIG_S390
• defined in drivers/crypto/Kconfig
• found in Linux kernels: 4.11–4.20, 5.0–5.19, 6.0–6.13, 6.14-rc+HEAD
• modules built: pkey

Help text

With this option enabled the pkey kernel modules provide an API for creation and handling of protected keys. Other parts of the kernel or userspace applications may use these functions.

The protected key support is distributed into: - A pkey base and API kernel module (pkey.ko) which offers the infrastructure for the pkey handler kernel modules, the ioctl and the sysfs API and the in-kernel API to the crypto cipher implementations using protected key. - A pkey pckmo kernel module (pkey-pckmo.ko) which is automatically loaded when pckmo support (that is generation of protected keys from clear key values) is available. - A pkey CCA kernel module (pkey-cca.ko) which is automatically loaded when a CEX crypto card is available. - A pkey EP11 kernel module (pkey-ep11.ko) which is automatically loaded when a CEX crypto card is available. - A pkey UV kernel module (pkey-uv.ko) which is automatically loaded when the Ultravisor feature is available within a protected execution environment.

Select this option if you want to enable the kernel and userspace API for protected key handling.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module pkey CONFIG_PKEY : drivers/crypto/Kconfig : "Kernel API for protected key handling" # in 4.11–4.20, 5.0–5.19, 6.0–6.13, 6.14-rc+HEAD

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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