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authorRalph Wuerthner <rwuerthn@de.ibm.com>2008-04-17 07:46:15 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2008-04-17 07:47:02 +0200
commit2f7c8bd6dc6540aa3275c0ad9f657401985c00e9 (patch)
tree12cb12d661424d332ad960113c8849b3579e7e6a /drivers/crypto
parent893f11286644780fc7d6d415e537644da7bdaaf8 (diff)
downloadlinux-linaro-stable-2f7c8bd6dc6540aa3275c0ad9f657401985c00e9.tar.gz
[S390] zcrypt: add support for large random numbers
This patch allows user space applications to access large amounts of truly random data. The random data source is the build-in hardware random number generator on the CEX2C cards. Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 6b658d84d521..6d2f0c8d419a 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -64,6 +64,7 @@ config ZCRYPT
tristate "Support for PCI-attached cryptographic adapters"
depends on S390
select ZCRYPT_MONOLITHIC if ZCRYPT="y"
+ select HW_RANDOM
help
Select this option if you want to use a PCI-attached cryptographic
adapter like: