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SubjectRe: sign-file and detached PKCS#7 firmware signatures
Date
Luis R. Rodriguez <mcgrof@suse.com> wrote:

> > Something like:
> >
> > openssl smime -verify \
> > -in $PKCS7_MESSAGE_FILE_IN_DER_FORM \
> > -inform DER \
> > -content $FIRMWARE_BLOB_NAME \
> > -inkey $PRIVATE_KEY_FILE_IN_PEM_FORM \
> > -signer $X509_CERT_FILE_IN_PEM_FORM
> >
> > I would guess.
>
> I tried a few things and no luck with that.

Try this:

openssl smime -verify \
-in $PKCS7_MESSAGE_FILE_IN_DER_FORM \
-inform DER \
-certfile $X509_CERT_FILE_IN_PEM_FORM \
-content $FIRMWARE_BLOB_NAME \
-binary \
-noverify \
>/dev/null

Seems using -signer with -verify isn't a good idea as -signer refers to an
output file during verification just for the surprise factor.

David


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