s390/zcrypt: Add low level functions for CCA AES cipher keys

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This patch adds low level functions, structs and defines to support
CCA AES cipher keys:
- struct cipherkeytoken can be used for an inside view of the CCA AES
  cipher key token blob.
- function cca_cipher2protkey() derives an CPACF protected key from an
  CCA AES cipher key.
- function cca_gencipherkey() generates an CCA AES cipher key with
  random value.
- function cca_findcard2() constructs a list of apqns based on input
  constrains like min hardware type, mkvp values.
- cca_check_secaescipherkey() does a check on the given CCA AES cipher
  key blob.
- cca_clr2cipherkey() generates an CCA AES cipher key from a given
  clear key value.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Harald Freudenberger 2019-07-03 13:16:51 +02:00 • committed by Vasily Gorbik

parent 4da57a2fea

commit 4bc123b18c

2 changed files with 903 additions and 4 deletions

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800

drivers/s390/crypto/zcrypt_ccamisc.c

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107

drivers/s390/crypto/zcrypt_ccamisc.h

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