1b27829489
Starting with the z9 the CPU Cryptographic Assist Facility comes with an integrated Pseudo Random Number Generator. The generator creates random numbers by an algorithm similar to the ANSI X9.17 standard. The pseudo-random numbers can be accessed via a character device driver node called /dev/prandom. Similar to /dev/urandom any amount of bytes can be read from the device without blocking. Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
69 lines
1.9 KiB
Text
69 lines
1.9 KiB
Text
menu "Hardware crypto devices"
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config CRYPTO_DEV_PADLOCK
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tristate "Support for VIA PadLock ACE"
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depends on X86_32
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select CRYPTO_ALGAPI
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default m
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help
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Some VIA processors come with an integrated crypto engine
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(so called VIA PadLock ACE, Advanced Cryptography Engine)
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that provides instructions for very fast cryptographic
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operations with supported algorithms.
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The instructions are used only when the CPU supports them.
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Otherwise software encryption is used.
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Selecting M for this option will compile a helper module
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padlock.ko that should autoload all below configured
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algorithms. Don't worry if your hardware does not support
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some or all of them. In such case padlock.ko will
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simply write a single line into the kernel log informing
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about its failure but everything will keep working fine.
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If you are unsure, say M. The compiled module will be
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called padlock.ko
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config CRYPTO_DEV_PADLOCK_AES
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tristate "PadLock driver for AES algorithm"
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depends on CRYPTO_DEV_PADLOCK
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select CRYPTO_BLKCIPHER
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default m
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help
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Use VIA PadLock for AES algorithm.
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Available in VIA C3 and newer CPUs.
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If unsure say M. The compiled module will be
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called padlock-aes.ko
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config CRYPTO_DEV_PADLOCK_SHA
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tristate "PadLock driver for SHA1 and SHA256 algorithms"
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depends on CRYPTO_DEV_PADLOCK
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select CRYPTO_SHA1
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select CRYPTO_SHA256
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default m
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help
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Use VIA PadLock for SHA1/SHA256 algorithms.
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Available in VIA C7 and newer processors.
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If unsure say M. The compiled module will be
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called padlock-sha.ko
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source "arch/s390/crypto/Kconfig"
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config CRYPTO_DEV_GEODE
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tristate "Support for the Geode LX AES engine"
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depends on CRYPTO && X86_32 && PCI
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select CRYPTO_ALGAPI
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select CRYPTO_BLKCIPHER
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default m
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help
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Say 'Y' here to use the AMD Geode LX processor on-board AES
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engine for the CryptoAPI AES alogrithm.
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To compile this driver as a module, choose M here: the module
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will be called geode-aes.
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endmenu
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