tree 33307bbe9cb995d0ce63caf4f5c4f274aa1985bc
parent fe109b5adbb22b3503cb1f72f5585543218ba990
author David Howells <dhowells@redhat.com> 1345077198 +0100
committer David Howells <dhowells@redhat.com> 1345077198 +0100

KEYS: Provide a function to load keys from a PGP keyring blob

Provide a function to load keys from a PGP keyring blob for use in initialising
the module signing key keyring:

	int load_PGP_keys(const u8 *pgpdata, size_t pgpdatalen,
			  struct key *keyring, const char *descprefix);

The keys are labelled with descprefix plus a number to uniquify them.  The keys
will actually be identified by the ID calculated from the PGP data rather than
by the description, so this shouldn't be a problem.

The keys are attached to the keyring supplied.

Looking as root in /proc/keys after the module signing keyring has been loaded:

24460d1c I-----     1 perm 3f010000     0     0 crypto    modsign.0: dsa 5acc2142 []
3ca85723 I-----     1 perm 1f010000     0     0 keyring   .module_sign: 1/4

Thanks to Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> for some pointing
out some errors.

Signed-off-by: David Howells <dhowells@redhat.com>