diff options
| author | Stephan Mueller <smueller@chronox.de> | 2016-05-26 23:38:12 +0200 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2016-06-03 16:14:34 +1000 |
| commit | 4693fc734d675c5518ea9bd4c9623db45bc37402 (patch) | |
| tree | 54dcf2388f5868c5d5a8ab4faf3b64a8e2fa4f79 /security/keys/keyctl.c | |
| parent | 4340fa55298d17049e71c7a34e04647379c269f3 (diff) | |
KEYS: Add placeholder for KDF usage with DH
The values computed during Diffie-Hellman key exchange are often used
in combination with key derivation functions to create cryptographic
keys. Add a placeholder for a later implementation to configure a
key derivation function that will transform the Diffie-Hellman
result returned by the KEYCTL_DH_COMPUTE command.
[This patch was stripped down from a patch produced by Mat Martineau that
had a bug in the compat code - so for the moment Stephan's patch simply
requires that the placeholder argument must be NULL]
Original-signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'security/keys/keyctl.c')
| -rw-r--r-- | security/keys/keyctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 3b135a0af344..d580ad06b792 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1688,8 +1688,8 @@ SYSCALL_DEFINE5(keyctl, int, option, unsigned long, arg2, unsigned long, arg3, case KEYCTL_DH_COMPUTE: return keyctl_dh_compute((struct keyctl_dh_params __user *) arg2, - (char __user *) arg3, - (size_t) arg4); + (char __user *) arg3, (size_t) arg4, + (void __user *) arg5); default: return -EOPNOTSUPP; |