CONFIG_CRYPTO_ADIANTUM: Adiantum

General informations

The Linux kernel configuration item CONFIG_CRYPTO_ADIANTUM has multiple definitions:

Adiantum found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_ADIANTUM:

• prompt: Adiantum
• type: tristate
• depends on: (none)
• defined in crypto/Kconfig
• found in Linux kernels: 6.1–6.8, 6.9-rc+HEAD
• modules built: adiantum

Help text

Adiantum tweakable, length-preserving encryption mode

Designed for fast and secure disk encryption, especially on CPUs without dedicated crypto instructions. It encrypts each sector using the XChaCha12 stream cipher, two passes of an ε-almost-∆-universal hash function, and an invocation of the AES-256 block cipher on a single 16-byte block. On CPUs without AES instructions, Adiantum is much faster than AES-XTS.

Adiantum's security is provably reducible to that of its underlying stream and block ciphers, subject to a security bound. Unlike XTS, Adiantum is a true wide-block encryption mode, so it actually provides an even stronger notion of security than XTS, subject to the security bound.

If unsure, say N.

Adiantum support found in crypto/Kconfig

The configuration item CONFIG_CRYPTO_ADIANTUM:

• prompt: Adiantum support
• type: tristate
• depends on: (none)
• defined in crypto/Kconfig
• found in Linux kernels: 5.0–5.19, 6.0, 6.0+HEAD
• modules built: adiantum

Help text

Adiantum is a tweakable, length-preserving encryption mode designed for fast and secure disk encryption, especially on CPUs without dedicated crypto instructions. It encrypts each sector using the XChaCha12 stream cipher, two passes of an ε-almost-∆-universal hash function, and an invocation of the AES-256 block cipher on a single 16-byte block. On CPUs without AES instructions, Adiantum is much faster than AES-XTS.

Adiantum's security is provably reducible to that of its underlying stream and block ciphers, subject to a security bound. Unlike XTS, Adiantum is a true wide-block encryption mode, so it actually provides an even stronger notion of security than XTS, subject to the security bound.

If unsure, say N.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module adiantum CONFIG_CRYPTO_ADIANTUM : crypto/Kconfig : "Adiantum" # in 5.0–5.19, 6.0–6.8, 6.9-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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