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[S390] zcrypt: add support for large random numbers

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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>
This commit is contained in:
Ralph Wuerthner
2008-04-17 07:46:15 +02:00
committed by Heiko Carstens
parent 893f112866
commit 2f7c8bd6dc
4 changed files with 327 additions and 1 deletions
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drivers/crypto/Kconfig
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@@ -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: