diff options
Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 75ebd1a2746c..4431c0db56b7 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1403,10 +1403,10 @@ config CRYPTO_SALSA20 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html> config CRYPTO_CHACHA20 - tristate "ChaCha20 stream cipher algorithms" + tristate "ChaCha stream cipher algorithms" select CRYPTO_BLKCIPHER help - The ChaCha20 and XChaCha20 stream cipher algorithms. + The ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms. ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J. Bernstein and further specified in RFC7539 for use in IETF protocols. @@ -1419,6 +1419,10 @@ config CRYPTO_CHACHA20 while provably retaining ChaCha20's security. See also: <https://cr.yp.to/snuffle/xsalsa-20081128.pdf> + XChaCha12 is XChaCha20 reduced to 12 rounds, with correspondingly + reduced security margin but increased performance. It can be needed + in some performance-sensitive scenarios. + config CRYPTO_CHACHA20_X86_64 tristate "ChaCha20 cipher algorithm (x86_64/SSSE3/AVX2)" depends on X86 && 64BIT |