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| author | David Howells <dhowells@redhat.com> | 2015-07-20 22:16:27 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2015-08-07 17:26:13 +0200 |
| commit | 3f1e1bea34740069f70c6bc92d0f712345d5c28e (patch) | |
| tree | 35ceac092ff7591536810cceecdbf22f4132b046 /Makefile | |
| parent | MODSIGN: Provide a utility to append a PKCS#7 signature to a module (diff) | |
| download | linux-3f1e1bea34740069f70c6bc92d0f712345d5c28e.tar.xz linux-3f1e1bea34740069f70c6bc92d0f712345d5c28e.zip | |
MODSIGN: Use PKCS#7 messages as module signatures
Move to using PKCS#7 messages as module signatures because:
(1) We have to be able to support the use of X.509 certificates that don't
have a subjKeyId set. We're currently relying on this to look up the
X.509 certificate in the trusted keyring list.
(2) PKCS#7 message signed information blocks have a field that supplies the
data required to match with the X.509 certificate that signed it.
(3) The PKCS#7 certificate carries fields that specify the digest algorithm
used to generate the signature in a standardised way and the X.509
certificates specify the public key algorithm in a standardised way - so
we don't need our own methods of specifying these.
(4) We now have PKCS#7 message support in the kernel for signed kexec purposes
and we can make use of this.
To make this work, the old sign-file script has been replaced with a program
that needs compiling in a previous patch. The rules to build it are added
here.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -873,7 +873,7 @@ ifdef CONFIG_MODULE_SIG_ALL MODSECKEY = ./signing_key.priv MODPUBKEY = ./signing_key.x509 export MODPUBKEY -mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) +mod_sign_cmd = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) else mod_sign_cmd = true endif |