[PATCH 0/1] crypto: af_alg - add extra parameters for DRBG interface

[Elena Petrova <lenaptr@google.com>]

This patch extends the userspace RNG interface to make it usable for
CAVS testing. This is achieved by adding ALG_SET_DRBG_ENTROPY
option to the setsockopt interface for specifying the entropy, and using
sendmsg syscall for specifying the additional data.

See libkcapi patch [1] to test the added functionality. The libkcapi
patch is not intended for merging into libkcapi as is: it is only a
quick plug to manually verify that the extended AF_ALG RNG interface
generates the expected output on DRBG800-90A CAVS inputs.

[1] https://github.com/Len0k/libkcapi/commit/6f095d270b982008f419078614c15caa592cb531

Elena Petrova (1):
  crypto: af_alg - add extra parameters for DRBG interface

 Documentation/crypto/userspace-if.rst | 14 +++-
 crypto/af_alg.c                       |  8 +++
 crypto/algif_rng.c                    | 99 +++++++++++++++++++++++++--
 include/crypto/if_alg.h               |  3 +-
 include/uapi/linux/if_alg.h           |  1 +
 5 files changed, 115 insertions(+), 10 deletions(-)

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2.27.0.383.g050319c2ae-goog