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Don't verify images with the empty build key

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We replaced the build key with an empty file while compiling shim
for our distro. Skip the verification with the empty build key
since this makes no sense.

Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>
This commit is contained in:
Gary Ching-Pang Lin 2014-10-02 00:08:50 -04:00 committed by Peter Jones
parent e258243e43
commit f852734c5a
1 changed files with 2 additions and 1 deletions
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3
shim.c
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@ -949,7 +949,8 @@ static EFI_STATUS verify_buffer (char *data, int datasize,
/*
* Check against the shim build key
*/
if (AuthenticodeVerify(cert->CertData,
if (sizeof(shim_cert) &&
AuthenticodeVerify(cert->CertData,
context->SecDir->Size - sizeof(cert->Hdr),
shim_cert, sizeof(shim_cert), sha256hash,
SHA256_DIGEST_SIZE)) {