s390/pkey: Introduce new API for random protected key generation

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This patch introduces a new ioctl API and in-kernel API to
generate a random protected key. The protected key is generated
in a way that the effective clear key is never exposed in clear.
Both APIs are described in detail in the header files
arch/s390/include/asm/pkey.h and arch/s390/include/uapi/asm/pkey.h.

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Ingo Franzki 2018-08-23 10:06:26 +02:00 • committed by Martin Schwidefsky

parent aa55bf5f02

commit a45a5c7d36

3 changed files with 73 additions and 0 deletions

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8

arch/s390/include/asm/pkey.h

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10

arch/s390/include/uapi/asm/pkey.h

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55

drivers/s390/crypto/pkey_api.c

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