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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2016-11-04 11:57:15 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-02-24 08:31:44 +0100
commit2793784307688a7a72bd322727a2cb11dede875f (patch)
tree009501aa3f2e1ea73a2188c8e34f7fe4dd9f523f /drivers/crypto
parent8693b9145b13dc44664602cd4cbe71862c26d0b5 (diff)
s390/crypt: Add protected key AES module
This patch introduces a new in-kernel-crypto blockcipher called 'paes' which implements AES with protected keys. The paes blockcipher can be used similar to the aes blockcipher but uses secure key material to derive the working protected key and so offers an encryption implementation where never a clear key value is exposed in memory. The paes module is only available for the s390 platform providing a minimal hardware support of CPACF enabled with at least MSA level 3. Upon module initialization these requirements are checked. Includes additional contribution from Harald Freudenberger. Signed-off-by: Martin Schwidefsky <schwidefsky@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 57c2d434ea4b..9355660cf243 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -137,6 +137,7 @@ config CRYPTO_AES_S390
depends on S390
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
+ select PKEY
help
This is the s390 hardware accelerated implementation of the
AES cipher algorithms (FIPS-197).