Re: Experimental did:cel Witness Service (open-source)

I've been thinking about log size recently, particularly when combined with
PQ cryptography.  It seems to me that as we shift to the use of PQ
algorithms, the size of the data will be dominated by the keys and
signatures, and compression techniques will be much less useful. So if a 10
year log has 5 years of PQ keys and signatures will not benefit much from
compression.

On Wed, Mar 11, 2026 at 5:53 AM Manu Sporny <msporny@digitalbazaar.com>
wrote:

> On Tue, Mar 10, 2026 at 9:53 PM Patrick St-Louis
> <patrick.st-louis@opsecid.ca> wrote:
> > Regarding the shared link: reading the specification led me to believe
> that logs must be stored as a compressed gzip archive. Is this not the case?
>
> Yes, good point -- yes, I think we need to make sure people do .gz
> otherwise the log size can grow quite large for logs that have 10+
> years of history in them. I don't think we want to provide people the
> option of not compressing mainly because that opens a bit of a DoS
> vector (denial by large file download).
>
> -- manu
>
> --
> Manu Sporny - https://www.linkedin.com/in/manusporny/
> Founder/CEO - Digital Bazaar, Inc.
> https://www.digitalbazaar.com/
>
>

-- 

Stephen Curran
Principal, Cloud Compass Computing, Inc.

Received on Wednesday, 11 March 2026 14:38:10 UTC