Re: HMACs of files
Jeffrey Walton <[email protected]>
| Newsgroups | gmane.comp.encryption.cryptopp |
|---|---|
| Message-ID | <CAH8yC8mgQkpX-emDh9mnvXALTbKpDCFcTbuGGjRF2EEh+PK0CA@mail.gmail.com> |
On Wed, Sep 8, 2021 at 6:46 AM Jeffrey Walton <[email protected]> wrote: > > On Tue, Sep 7, 2021 at 7:45 AM Tom <[email protected]> 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 -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/CAH8yC8mgQkpX-emDh9mnvXALTbKpDCFcTbuGGjRF2EEh%2BPK0CA%40mail.gmail.com.