crypto: af_alg - add sig gen / verify API

As a prerequisite to add the asymmetric cipher AF_ALG API, this patch
adds the user space interface identifier to tell the kernel about
performing a signature generation and verification operation in addition
to the existing encryption / decryption operation.

CC: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
1 file changed