diff options
| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2020-07-21 19:35:22 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-08-13 22:37:36 +0200 |
| commit | 1115edd8462b047f83fcca4abcf89b68f2d87041 (patch) | |
| tree | 724a209c24bfe0ec2c6ce63341d0a699f6fa8c37 /lib/efi_loader/efi_image_loader.c | |
| parent | 0658bb29b026a6af434b9e0cdeced5d25bdd206f (diff) | |
efi_loader: signature: rework for intermediate certificates support
In this commit, efi_signature_verify(with_sigdb) will be re-implemented
using pcks7_verify_one() in order to support certificates chain, where
the signer's certificate will be signed by an intermediate CA (certificate
authority) and the latter's certificate will also be signed by another CA
and so on.
What we need to do here is to search for certificates in a signature,
build up a chain of certificates and verify one by one. pkcs7_verify_one()
handles most of these steps except the last one.
pkcs7_verify_one() returns, if succeeded, the last certificate to verify,
which can be either a self-signed one or one that should be signed by one
of certificates in "db". Re-worked efi_signature_verify() will take care
of this step.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Diffstat (limited to 'lib/efi_loader/efi_image_loader.c')
| -rw-r--r-- | lib/efi_loader/efi_image_loader.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c index fef0bb870c..832bce9394 100644 --- a/lib/efi_loader/efi_image_loader.c +++ b/lib/efi_loader/efi_image_loader.c @@ -641,7 +641,7 @@ static bool efi_image_authenticate(void *efi, size_t efi_size) } /* try white-list */ - if (efi_signature_verify_with_sigdb(regs, msg, db, dbx)) + if (efi_signature_verify(regs, msg, db, dbx)) continue; debug("Signature was not verified by \"db\"\n"); |