From bf754ae8ef8bc443c067601d9401103e4001e7c5 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Fri, 6 Jan 2006 00:19:18 -0800 Subject: [PATCH] s390: aes support Add support for the hardware accelerated AES crypto algorithm. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- crypto/Kconfig | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'crypto/Kconfig') diff --git a/crypto/Kconfig b/crypto/Kconfig index 9fdab742b10f..c696f7ab729e 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -215,6 +215,26 @@ config CRYPTO_AES_X86_64 See for more information. +config CRYPTO_AES_S390 + tristate "AES cipher algorithms (s390)" + depends on CRYPTO && ARCH_S390 + help + This is the s390 hardware accelerated implementation of the + AES cipher algorithms (FIPS-197). AES uses the Rijndael + algorithm. + + Rijndael appears to be consistently a very good performer in + both hardware and software across a wide range of computing + environments regardless of its use in feedback or non-feedback + modes. Its key setup time is excellent, and its key agility is + good. Rijndael's very low memory requirements make it very well + suited for restricted-space environments, in which it also + demonstrates excellent performance. Rijndael's operations are + among the easiest to defend against power and timing attacks. + + On s390 the System z9-109 currently only supports the key size + of 128 bit. + config CRYPTO_CAST5 tristate "CAST5 (CAST-128) cipher algorithm" depends on CRYPTO -- cgit v1.2.3-59-g8ed1b