On Wed, Sep 8, 2021 at 6:46 AM Jeffrey Walton <noloa...@gmail.com> wrote:
>
> On Tue, Sep 7, 2021 at 7:45 AM Tom <thomasb9...@gmail.com> wrote:
> >
> > I can create HMACs of files using pipelines via filesources but... I can't 
> > seem to figure out to verify the HMAC without throwing the file into a 
> > string in memory.
> >
> > like this:
> >
> > StringSource(plain + mac, true, new HashVerificationFilter(hmac, NULL, 
> > flags) ); // StringSource
> >
> > Is there a way to use a FileSource without loading the file fully into 
> > memory?
> >
> > I think its possible but do I append the hmac if I use a file?
>
> Yeah, that's a problem. We should have some documentation covering it.

Here is the documentation:
https://www.cryptopp.com/wiki/HashVerificationFilter#String_and_File_Sources

Jeff

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