Re: sign-file and detached PKCS#7 firmware signatures

[Luis R. Rodriguez]

On Tue, May 19, 2015 at 05:48:57PM +0100, David Howells wrote:
> Luis R. Rodriguez <mcgrof@xxxxxxxx> 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

Neat ok yeah this works thanks, I'll throw this in the docs too
with the change to  use -out /dev/null.

  Luis
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