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| author | Ingo Franzki <ifranzki@linux.ibm.com> | 2018-08-23 17:59:30 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-10-10 08:37:14 +0300 |
| commit | d632c0478d64427cfbca999955e02b26986ae09e (patch) | |
| tree | 9ee834f18deae76e23d980e1ad905b529cbd4200 /mm | |
| parent | 0534bde7de19a2e66c2b2bf05fcfd00a7cc849fa (diff) | |
| download | linux-d632c0478d64427cfbca999955e02b26986ae09e.tar.xz | |
s390/pkey: Add sysfs attributes to emit protected key blobs
Add binary read-only sysfs attributes for the pkey module
that can be used to read random protected keys from.
Keys are read from these attributes using a cat-like interface.
A typical use case for those keys is to encrypt a swap device
using the paes cipher. During processing of /etc/crypttab, the
random protected key to encrypt the swap device is read from
one of the attributes.
The following attributes are added:
protkey/aes_128
protkey/aes_192
protkey/aes_256
protkey/aes_128_xts
protkey/aes_256_xts
Each attribute emits a protected key blob for the corresponding
key size and cipher mode.
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>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions