TEST: Add KDF leading zero test

Diffie-Hellman results used as input to a KDF algorithm can have leading
zero bytes, and the current kernel DH implementation truncates leading
zero bytes. This test confirms that the KDF code correctly handles DH
results with leading zeros.

Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
1 file changed