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Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index eaeb8a986b7d..b6376d5d973e 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -501,6 +501,29 @@ config CRYPTO_NHPOLY1305 select CRYPTO_HASH select CRYPTO_POLY1305 +config CRYPTO_ADIANTUM + tristate "Adiantum support" + select CRYPTO_CHACHA20 + select CRYPTO_POLY1305 + select CRYPTO_NHPOLY1305 + help + 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. + comment "Hash modes" config CRYPTO_CMAC |